Android 14.0.0 release 40
Make num-derive available to product and vendor am: 578c2b6ca3 am: fef27ce304 am: a5d61d2627 am: 99b88e44ef

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/num-derive/+/2476388

Change-Id: I43b63dede995b848336ddb180de478e6d1c086eb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
tree: 4d02240b6a356275f2e27bd9fea034214dd6efe0
  1. src/
  2. tests/
  3. .cargo_vcs_info.json
  4. .gitignore
  5. Android.bp
  6. Cargo.toml
  7. Cargo.toml.orig
  8. cargo2android.json
  9. LICENSE-APACHE
  10. LICENSE-MIT
  11. METADATA
  12. MODULE_LICENSE_APACHE2
  13. OWNERS
  14. README.md
  15. RELEASES.md
  16. 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.