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android-review.linaro.org / platform / external / rust / crates / num-derive / f8ece0a21e1c79286f0d3c7866f16f7385e45140
commitf8ece0a21e1c79286f0d3c7866f16f7385e45140[log] [tgz]
authorMatthew Maurer <mmaurer@google.com>Sat May 27 02:52:09 2023 +0000
committerAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>Sat May 27 02:52:09 2023 +0000
tree013695c6c3323ccdb9c6dccb7357753d563bcf9e
parentc88059cafb9fb8221c508323b6c5138753aa749d [diff]
parentf559f9cf6587a63bad4189b8720f63ed969f9bc8 [diff]
Update to syn-2 am: 559b5f3107 am: fd2dcef001 am: fe0607416e am: 8ebd4e87c0 am: d11887ffec am: f559f9cf65

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/num-derive/+/2520538

Change-Id: Id7684883cc743d4ece0ad99e5acfb04fe963a2dd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
tree: 013695c6c3323ccdb9c6dccb7357753d563bcf9e
  1. patches/
  2. src/
  3. tests/
  4. LICENSE ⇨ LICENSE-APACHE
  5. .cargo_vcs_info.json
  6. .gitignore
  7. Android.bp
  8. Cargo.toml
  9. Cargo.toml.orig
  10. cargo2android.json
  11. LICENSE-APACHE
  12. LICENSE-MIT
  13. METADATA
  14. MODULE_LICENSE_APACHE2
  15. OWNERS
  16. README.md
  17. RELEASES.md
  18. TEST_MAPPING
README.md

num-derive

crate documentation minimum rustc 1.31 build status

Procedural macros to derive numeric traits in Rust.

Usage

Add this to your Cargo.toml:

[dependencies]
num-traits = "0.2"
num-derive = "0.3"

and this to your crate root:

#[macro_use]
extern crate num_derive;

Then you can derive traits on your own types:

#[derive(FromPrimitive, ToPrimitive)]
enum Color {
    Red,
    Blue,
    Green,
}

Optional features

  • full-syntax — Enables num-derive to handle enum discriminants represented by complex expressions. Usually can be avoided by utilizing constants, so only use this feature if namespace pollution is undesired and compile time doubling is acceptable.

Releases

Release notes are available in RELEASES.md.

Compatibility

The num-derive crate is tested for rustc 1.31 and greater.

License

Licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.