Gitiles
Code Review Sign In
gerrit-public.fairphone.software / platform / external / rust / crates / num-derive / be6bbc16974b0e752bf4baec9b5ac314ff885ba3
commitbe6bbc16974b0e752bf4baec9b5ac314ff885ba3[log] [tgz]
authorLinux Build Service Account <lnxbuild@localhost>Tue Apr 06 17:40:02 2021 -0700
committerLinux Build Service Account <lnxbuild@localhost>Tue Apr 06 17:40:02 2021 -0700
treec9a58f4fc6663d85c63dcb9f4a8cf00c85f3993e
parent6f525cac0f9eda6fbf85ef4b9e3d1424cbae6901 [diff]
parent2745f57ceb4a0e3ef8465a006318d8edb5801f46 [diff]
Merge 2745f57ceb4a0e3ef8465a006318d8edb5801f46 on remote branch

Change-Id: Ic2e526a6ac5a5998b88dcce018e7396384a56e2d
tree: c9a58f4fc6663d85c63dcb9f4a8cf00c85f3993e
  1. src/
  2. tests/
  3. LICENSE ⇨ LICENSE-APACHE
  4. .cargo_vcs_info.json
  5. .gitignore
  6. Android.bp
  7. Cargo.toml
  8. Cargo.toml.orig
  9. LICENSE-APACHE
  10. LICENSE-MIT
  11. METADATA
  12. MODULE_LICENSE_APACHE2
  13. OWNERS
  14. README.md
  15. RELEASES.md
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.