| commit | 641ac68b1150ced9cf9d71a2d77d677297a7d34f | [log] [tgz] |
|---|---|---|
| author | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | Thu Feb 15 00:14:47 2024 +0000 |
| committer | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | Thu Feb 15 00:14:47 2024 +0000 |
| tree | 7358eb3fcfcd918d253cd32df6f47157dc665e25 | |
| parent | 9d3f33e38e17fc2d5671311f51c5147f704af5fd [diff] | |
| parent | 224c34a32975cdb697546852356e97d087ce60a8 [diff] |
Snap for 11449429 from 224c34a32975cdb697546852356e97d087ce60a8 to 24D1-release Change-Id: I0b3b7bc9091a99144d0856a71c40af52a2434482
Strum is a set of macros and traits for working with enums and strings easier in Rust.
Strum is currently compatible with versions of rustc >= 1.56.1. Pull Requests that improve compatibility with older versions are welcome. The project goal is to support a rust version for at least 2 years after release and even longer is preferred since this project changes slowly.
Import strum and strum_macros into your project by adding the following lines to your Cargo.toml. Strum_macros contains the macros needed to derive all the traits in Strum.
[dependencies] strum = "0.25" strum_macros = "0.25" # You can also use the "derive" feature, and import the macros directly from "strum" # strum = { version = "0.25", features = ["derive"] }
Strum has implemented the following macros:
| Macro | Description |
|---|---|
| EnumString | Converts strings to enum variants based on their name. |
| Display | Converts enum variants to strings |
| FromRepr | Convert from an integer to an enum. |
| AsRefStr | Implement AsRef<str> for MyEnum |
| IntoStaticStr | Implements From<MyEnum> for &'static str on an enum |
| EnumVariantNames | Adds an associated VARIANTS constant which is an array of discriminant names |
| EnumIter | Creates a new type that iterates of the variants of an enum. |
| EnumProperty | Add custom properties to enum variants. |
| EnumMessage | Add a verbose message to an enum variant. |
| EnumDiscriminants | Generate a new type with only the discriminant names. |
| EnumCount | Add a constant usize equal to the number of variants. |
Thanks for your interest in contributing. The project is divided into 3 parts, the traits are in the /strum folder. The procedural macros are in the /strum_macros folder, and the integration tests are in /strum_tests. If you are adding additional features to strum or strum_macros, you should make sure to run the tests and add new integration tests to make sure the features work as expected.
To see the generated code, set the STRUM_DEBUG environment variable before compiling your code. STRUM_DEBUG=1 will dump all of the generated code for every type. STRUM_DEBUG=YourType will only dump the code generated on a type named YourType.
Strum is short for STRing enUM because it's a library for augmenting enums with additional information through strings.
Strumming is also a very whimsical motion, much like writing Rust code.
