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gerrit-public.fairphone.software / platform / external / rust / crates / num-derive / 63e3350576163857d64193532b4f04743db8237d
commit63e3350576163857d64193532b4f04743db8237d[log] [tgz]
authorandroid-build-team Robot <android-build-team-robot@google.com>Sat Oct 10 01:10:36 2020 +0000
committerandroid-build-team Robot <android-build-team-robot@google.com>Sat Oct 10 01:10:36 2020 +0000
treefe685f62dad88790e374a48934534d4517add021
parentcfd63fb88ba3def46748f1ff8bea5e94216f0539 [diff]
parente6ce4232ca332ecc0e0b00a0d28ecf77b47350c5 [diff]
Snap for 6896080 from e6ce4232ca332ecc0e0b00a0d28ecf77b47350c5 to sc-release

Change-Id: I889cc0d79298495ceb229d6193fa9a599917bdca
tree: fe685f62dad88790e374a48934534d4517add021
  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.