Macro-based schema discovery proof of concept

.jenkins.yml

@@ -4,145 +4,12 @@
 # This is a generated file produced by scripts/pr-ci-matrix.rb.
 
 xcode_version:
- - 14.1
- - 14.2
- - 14.3.1
+ - 15.0
 target:
  - docs
  - swiftlint
- - osx
- - osx-encryption
- - osx-object-server
- - swiftpm
- - swiftpm-debug
- - swiftpm-address
- - swiftpm-thread
- - swiftpm-ios
- - ios-static
- - ios-dynamic
- - watchos
- - tvos
  - osx-swift
- - ios-swift
- - tvos-swift
- - osx-swift-evolution
- - ios-swift-evolution
- - tvos-swift-evolution
- - catalyst
- - catalyst-swift
- - xcframework
- - cocoapods-osx
- - cocoapods-ios
- - cocoapods-ios-dynamic
- - cocoapods-watchos
- - swiftui-ios
- - swiftui-server-osx
 configuration:
  - N/A
 
 exclude:
-
-  - xcode_version: 14.1
-    target: docs
-
-  - xcode_version: 14.2
-    target: docs
-
-  - xcode_version: 14.1
-    target: swiftlint
-
-  - xcode_version: 14.2
-    target: swiftlint
-
-  - xcode_version: 14.1
-    target: osx-encryption
-
-  - xcode_version: 14.2
-    target: osx-encryption
-
-  - xcode_version: 14.2
-    target: osx-object-server
-
-  - xcode_version: 14.2
-    target: swiftpm
-
-  - xcode_version: 14.1
-    target: swiftpm-address
-
-  - xcode_version: 14.2
-    target: swiftpm-address
-
-  - xcode_version: 14.1
-    target: swiftpm-thread
-
-  - xcode_version: 14.2
-    target: swiftpm-thread
-
-  - xcode_version: 14.2
-    target: ios-static
-
-  - xcode_version: 14.2
-    target: ios-dynamic
-
-  - xcode_version: 14.2
-    target: watchos
-
-  - xcode_version: 14.2
-    target: tvos
-
-  - xcode_version: 14.2
-    target: ios-swift
-
-  - xcode_version: 14.2
-    target: tvos-swift
-
-  - xcode_version: 14.1
-    target: osx-swift-evolution
-
-  - xcode_version: 14.2
-    target: osx-swift-evolution
-
-  - xcode_version: 14.1
-    target: ios-swift-evolution
-
-  - xcode_version: 14.2
-    target: ios-swift-evolution
-
-  - xcode_version: 14.1
-    target: tvos-swift-evolution
-
-  - xcode_version: 14.2
-    target: tvos-swift-evolution
-
-  - xcode_version: 14.2
-    target: catalyst
-
-  - xcode_version: 14.2
-    target: catalyst-swift
-
-  - xcode_version: 14.1
-    target: xcframework
-
-  - xcode_version: 14.2
-    target: xcframework
-
-  - xcode_version: 14.2
-    target: cocoapods-ios
-
-  - xcode_version: 14.2
-    target: cocoapods-ios-dynamic
-
-  - xcode_version: 14.2
-    target: cocoapods-watchos
-
-  - xcode_version: 14.1
-    target: swiftui-ios
-
-  - xcode_version: 14.2
-    target: swiftui-ios
-
-  - xcode_version: 14.1
-    target: swiftui-server-osx
-
-  - xcode_version: 14.2
-    target: swiftui-server-osx

Realm.xcodeproj/project.pbxproj

@@ -218,6 +218,7 @@
 		3FA5E94D266064C4008F1345 /* ModernObjectCreationTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3FA5E94C266064C4008F1345 /* ModernObjectCreationTests.swift */; };
 		3FAF2D4129577100002EAC93 /* TestUtils.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3FAF2D4029577100002EAC93 /* TestUtils.swift */; };
 		3FAF2D4229577100002EAC93 /* TestUtils.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3FAF2D4029577100002EAC93 /* TestUtils.swift */; };
+		3FB0FF102A31019800E13BF3 /* RealmMacro in Frameworks */ = {isa = PBXBuildFile; productRef = 3FB0FF0F2A31019800E13BF3 /* RealmMacro */; };
 		3FB19069265ECF0C00DA7C76 /* ModernObjectTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3FB19068265ECF0C00DA7C76 /* ModernObjectTests.swift */; };
 		3FB1906B265ED23300DA7C76 /* ModernTestObjects.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3FB1906A265ED23300DA7C76 /* ModernTestObjects.swift */; };
 		3FB4FA1719F5D2740020D53B /* SwiftTestObjects.swift in Sources */ = {isa = PBXBuildFile; fileRef = E8F8D90B196CB8DD00475368 /* SwiftTestObjects.swift */; };
@@ -941,6 +942,7 @@
 		3F9F53D42718E8E6000EEB4A /* CustomPersistableTestObjects.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CustomPersistableTestObjects.swift; sourceTree = "<group>"; };
 		3FA5E94C266064C4008F1345 /* ModernObjectCreationTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ModernObjectCreationTests.swift; sourceTree = "<group>"; };
 		3FAF2D4029577100002EAC93 /* TestUtils.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TestUtils.swift; sourceTree = "<group>"; };
+		3FB0FF0E2A2FE6A200E13BF3 /* RealmMacro */ = {isa = PBXFileReference; lastKnownFileType = wrapper; path = RealmMacro; sourceTree = "<group>"; };
 		3FB19068265ECF0C00DA7C76 /* ModernObjectTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ModernObjectTests.swift; sourceTree = "<group>"; };
 		3FB1906A265ED23300DA7C76 /* ModernTestObjects.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ModernTestObjects.swift; sourceTree = "<group>"; };
 		3FB56E7E250D457A00A6216B /* ObjectServerTests.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; path = ObjectServerTests.xcconfig; sourceTree = "<group>"; };
@@ -1306,6 +1308,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				3F98162A2317763000C3543D /* libc++.tbd in Frameworks */,
+				3FB0FF102A31019800E13BF3 /* RealmMacro in Frameworks */,
 				3F98162B2317763600C3543D /* libz.tbd in Frameworks */,
 				5D66102A1BE98DD00021E04F /* Realm.framework in Frameworks */,
 			);
@@ -1840,6 +1843,7 @@
 		E8D89B8E1955FC6D00CF2B9A = {
 			isa = PBXGroup;
 			children = (
+				3FB0FF0E2A2FE6A200E13BF3 /* RealmMacro */,
 				5D660FB71BE98B770021E04F /* Configuration */,
 				1A7B82361D51254600750296 /* Frameworks */,
 				E81A1FB41955FCE000FDED82 /* LICENSE */,
@@ -2338,6 +2342,9 @@
 				5D66102C1BE98DF60021E04F /* PBXTargetDependency */,
 			);
 			name = RealmSwift;
+			packageProductDependencies = (
+				3FB0FF0F2A31019800E13BF3 /* RealmMacro */,
+			);
 			productName = RealmSwift;
 			productReference = 5D660FCC1BE98C560021E04F /* RealmSwift.framework */;
 			productType = "com.apple.product-type.framework";
@@ -3850,6 +3857,13 @@
 			defaultConfigurationName = Release;
 		};
 /* End XCConfigurationList section */
+
+/* Begin XCSwiftPackageProductDependency section */
+		3FB0FF0F2A31019800E13BF3 /* RealmMacro */ = {
+			isa = XCSwiftPackageProductDependency;
+			productName = RealmMacro;
+		};
+/* End XCSwiftPackageProductDependency section */
 	};
 	rootObject = E8D89B8F1955FC6D00CF2B9A /* Project object */;
 }

Realm/RLMCollection.mm

@@ -276,9 +276,7 @@ NSUInteger RLMUnmanagedFastEnumerate(id collection, NSFastEnumerationState *stat
     auto swiftAccessor = prop.swiftAccessor;
     for (size_t i = 0; i < count; i++) {
         accessor->_row = collection.get(i);
-        if (swiftAccessor) {
-            [swiftAccessor initialize:prop on:accessor];
-        }
+        [swiftAccessor initialize:prop on:accessor];
         [array addObject:[accessor valueForKey:key] ?: NSNull.null];
     }
     return array;

RealmMacro/.gitignore

@@ -0,0 +1,8 @@
+.DS_Store
+/.build
+/Packages
+xcuserdata/
+DerivedData/
+.swiftpm/configuration/registries.json
+.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
+.netrc

RealmMacro/Package.swift

@@ -0,0 +1,41 @@
+// swift-tools-version: 5.9
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+import CompilerPluginSupport
+
+let package = Package(
+    name: "RealmMacro",
+    platforms: [.macOS(.v10_15), .iOS(.v13), .tvOS(.v13), .watchOS(.v6), .macCatalyst(.v13)],
+    products: [
+        .library(
+            name: "RealmMacro",
+            targets: ["RealmMacro"]
+        ),
+        .executable(
+            name: "RealmMacroClient",
+            targets: ["RealmMacroClient"]
+        ),
+    ],
+    dependencies: [
+        .package(url: "https://github.com/apple/swift-syntax.git", branch: "release/5.9")
+    ],
+    targets: [
+        .macro(
+            name: "RealmMacroMacros",
+            dependencies: [
+                .product(name: "SwiftSyntaxMacros", package: "swift-syntax"),
+                .product(name: "SwiftCompilerPlugin", package: "swift-syntax")
+            ]
+        ),
+        .target(name: "RealmMacro", dependencies: ["RealmMacroMacros"]),
+        .executableTarget(name: "RealmMacroClient", dependencies: ["RealmMacro"]),
+        .testTarget(
+            name: "RealmMacroTests",
+            dependencies: [
+                "RealmMacroMacros",
+                .product(name: "SwiftSyntaxMacrosTestSupport", package: "swift-syntax"),
+            ]
+        ),
+    ]
+)

RealmMacro/Sources/RealmMacro/RealmMacro.swift

@@ -0,0 +1,26 @@
+@attached(conformance)
+@attached(member, names: named(_realmProperties))
+//@attached(memberAttribute)
+public macro RealmSchemaDiscovery() -> Void = #externalMacro(module: "RealmMacroMacros", type: "RealmSchemaDiscovery")
+
+@attached(conformance)
+@attached(member, names: named(_realmProperties), named(_realmUnmanagedStorage))
+@attached(memberAttribute)
+public macro RealmModel() -> () = #externalMacro(module: "RealmMacroMacros", type: "RealmObjectMacro2")
+
+@attached(accessor)
+@attached(peer, names: arbitrary)
+public macro _PersistedProperty(index: Int) -> () = #externalMacro(module: "RealmMacroMacros", type: "PersistedProperty2")
+
+@attached(peer, names: arbitrary)
+public macro PersistedProperty(index: Int) -> () = #externalMacro(module: "RealmMacroMacros", type: "PersistedProperty2")
+
+@attached(accessor)
+public macro OriginProperty(name: String) -> () = #externalMacro(module: "RealmMacroMacros", type: "Marker")
+
+@attached(accessor)
+public macro PrimaryKey() -> () = #externalMacro(module: "RealmMacroMacros", type: "Marker")
+@attached(accessor)
+public macro Indexed() -> () = #externalMacro(module: "RealmMacroMacros", type: "Marker")
+@attached(accessor)
+public macro Ignored() -> () = #externalMacro(module: "RealmMacroMacros", type: "Marker")

RealmMacro/Sources/RealmMacroClient/main.swift

@@ -0,0 +1 @@
+import RealmMacro