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gerrit-public.fairphone.software / platform / external / rust / crates / num-derive / f29d10eb491c074288da02800f6a3637b87d86cb
commitf29d10eb491c074288da02800f6a3637b87d86cb[log] [tgz]
authorandroid-build-team Robot <android-build-team-robot@google.com>Fri Sep 18 01:11:35 2020 +0000
committerandroid-build-team Robot <android-build-team-robot@google.com>Fri Sep 18 01:11:35 2020 +0000
tree61f8cf9de82b1871077110126fbb23316afbde28
parentb2af497b2356032a6abb3601d3690ad539e42a5e [diff]
parentcbb466efc6aba87ff4fde376c5fcfe04468ee201 [diff]
Snap for 6845284 from cbb466efc6aba87ff4fde376c5fcfe04468ee201 to sc-release

Change-Id: I20fdd9497e70ce579b16c3e2e4f3df80de93ef6b
tree: 61f8cf9de82b1871077110126fbb23316afbde28
  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.