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gerrit-public.fairphone.software / platform / external / rust / crates / num-derive / f3e6958e3ffcaaffc9754357b4e093d9b9167054
commitf3e6958e3ffcaaffc9754357b4e093d9b9167054[log] [tgz]
authorAndroid Build Role Account android-build-prod <android-build-team-robot@google.com>Thu Nov 05 11:02:54 2020 +0000
committerAndroid Build Role Account android-build-prod <android-build-team-robot@google.com>Thu Nov 05 11:02:54 2020 +0000
treefe685f62dad88790e374a48934534d4517add021
parent84c69a80d609003cc5440610b787899a3fc3ab79 [diff]
parent98f11b30791e1961d842eb2a6a1fd88521e4579f [diff]
Snap for 6953696 from 98f11b30791e1961d842eb2a6a1fd88521e4579f to s-keystone-qcom-release

Change-Id: I124ef857faf41f00d8c6db50ce8e503c8bfb9a83
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.