Rust luhn trait

rust/README.md

@@ -41,3 +41,4 @@
 - [scrabble-score](./scrabble-score/README.md)
 - [luhn-from](./luhn-from/README.md)
 - [collatz-conjecture](./collatz-conjecture/README.md)
+- [luhn-trait](./luhn-trait/README.md)

rust/luhn-trait/.exercism/config.json

@@ -0,0 +1,39 @@
+{
+  "authors": [
+    "IanWhitney"
+  ],
+  "contributors": [
+    "AndrewKvalheim",
+    "coriolinus",
+    "cwhakes",
+    "efx",
+    "ErikSchierboom",
+    "IanWhitney",
+    "Insti",
+    "lutostag",
+    "mkantor",
+    "nfiles",
+    "petertseng",
+    "rofrol",
+    "stringparser",
+    "xakon",
+    "ZapAnton"
+  ],
+  "files": {
+    "solution": [
+      "src/lib.rs",
+      "Cargo.toml"
+    ],
+    "test": [
+      "tests/luhn-trait.rs"
+    ],
+    "example": [
+      ".meta/example.rs"
+    ]
+  },
+  "blurb": "Luhn: Using a Custom Trait",
+  "source": "The Rust track maintainers, based on the original Luhn exercise",
+  "custom": {
+    "allowed-to-not-compile": "Stub doesn't compile because the custom trait is not implemented for every type in the test suite. This exercise is an introduction to implementing custom traits for the primitives and fully implementing the trait for the test suite reduces learning."
+  }
+}

rust/luhn-trait/.exercism/metadata.json

@@ -0,0 +1 @@
+{"track":"rust","exercise":"luhn-trait","id":"4cd119f389124ffdbf323c376560c63e","url":"https://exercism.org/tracks/rust/exercises/luhn-trait","handle":"vpayno","is_requester":true,"auto_approve":false}

rust/luhn-trait/.gitignore

@@ -0,0 +1,8 @@
+# Generated by Cargo
+# will have compiled files and executables
+/target/
+**/*.rs.bk
+
+# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
+# More information here http://doc.crates.io/guide.html#cargotoml-vs-cargolock
+Cargo.lock

rust/luhn-trait/Cargo.toml

@@ -0,0 +1,4 @@
+[package]
+edition = "2021"
+name = "luhn-trait"
+version = "0.0.0"

rust/luhn-trait/HELP.md

@@ -0,0 +1,86 @@
+# Help
+
+## Running the tests
+
+Execute the tests with:
+
+```bash
+$ cargo test
+```
+
+All but the first test have been ignored. After you get the first test to
+pass, open the tests source file which is located in the `tests` directory
+and remove the `#[ignore]` flag from the next test and get the tests to pass
+again. Each separate test is a function with `#[test]` flag above it.
+Continue, until you pass every test.
+
+If you wish to run _only ignored_ tests without editing the tests source file, use:
+
+```bash
+$ cargo test -- --ignored
+```
+
+If you are using Rust 1.51 or later, you can run _all_ tests with
+
+```bash
+$ cargo test -- --include-ignored
+```
+
+To run a specific test, for example `some_test`, you can use:
+
+```bash
+$ cargo test some_test
+```
+
+If the specific test is ignored, use:
+
+```bash
+$ cargo test some_test -- --ignored
+```
+
+To learn more about Rust tests refer to the online [test documentation][rust-tests].
+
+[rust-tests]: https://doc.rust-lang.org/book/ch11-02-running-tests.html
+
+## Submitting your solution
+
+You can submit your solution using the `exercism submit src/lib.rs Cargo.toml` command.
+This command will upload your solution to the Exercism website and print the solution page's URL.
+
+It's possible to submit an incomplete solution which allows you to:
+
+- See how others have completed the exercise
+- Request help from a mentor
+
+## Need to get help?
+
+If you'd like help solving the exercise, check the following pages:
+
+- The [Rust track's documentation](https://exercism.org/docs/tracks/rust)
+- The [Rust track's programming category on the forum](https://forum.exercism.org/c/programming/rust)
+- [Exercism's programming category on the forum](https://forum.exercism.org/c/programming/5)
+- The [Frequently Asked Questions](https://exercism.org/docs/using/faqs)
+
+Should those resources not suffice, you could submit your (incomplete) solution to request mentoring.
+
+## Rust Installation
+
+Refer to the [exercism help page][help-page] for Rust installation and learning
+resources.
+
+## Submitting the solution
+
+Generally you should submit all files in which you implemented your solution (`src/lib.rs` in most cases). If you are using any external crates, please consider submitting the `Cargo.toml` file. This will make the review process faster and clearer.
+
+## Feedback, Issues, Pull Requests
+
+The GitHub [track repository][github] is the home for all of the Rust exercises. If you have feedback about an exercise, or want to help implement new exercises, head over there and create an issue. Members of the rust track team are happy to help!
+
+If you want to know more about Exercism, take a look at the [contribution guide].
+
+## Submitting Incomplete Solutions
+It's possible to submit an incomplete solution so you can see how others have completed the exercise.
+
+[help-page]: https://exercism.org/tracks/rust/learning
+[github]: https://github.com/exercism/rust
+[contribution guide]: https://exercism.org/docs/community/contributors

rust/luhn-trait/README.md

@@ -0,0 +1,61 @@
+# Luhn Trait
+
+Welcome to Luhn Trait on Exercism's Rust Track.
+If you need help running the tests or submitting your code, check out `HELP.md`.
+
+## Instructions
+
+Before doing this exercise you should probably do the original Luhn exercise and its successor, "Luhn: Using the From Trait"
+
+To get the original Luhn exercise, run
+
+```shell
+exercism download --exercise=luhn --track=rust
+```
+
+To get the "Luhn: Using the From Trait" exercise, run
+
+```shell
+exercism download --exercise=luhn-from --track=rust
+```
+
+In the original Luhn exercise you only validated strings, but the Luhn algorithm can be applied to integers as well.
+
+In "Luhn: Using the From Trait" you implemented a From trait, which also required you to create a Luhn struct.
+
+Instead of creating a Struct just to perform the validation, what if you validated the primitives (i.e, String, u8, etc.) themselves?
+
+In this exercise you'll create and implement a custom [trait](https://doc.rust-lang.org/book/2018-edition/ch10-02-traits.html) that performs the validation.
+
+## Source
+
+### Created by
+
+- @IanWhitney
+
+### Contributed to by
+
+- @AndrewKvalheim
+- @coriolinus
+- @cwhakes
+- @efx
+- @ErikSchierboom
+- @IanWhitney
+- @Insti
+- @lutostag
+- @mkantor
+- @nfiles
+- @petertseng
+- @rofrol
+- @stringparser
+- @xakon
+- @ZapAnton
+
+### Based on
+
+The Rust track maintainers, based on the original Luhn exercise
+
+### My Solution
+
+- [my solution](./src/lib.rs)
+- [run-tests](./run-tests-rust.txt)