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gerrit-public.fairphone.software / platform / external / rust / crates / num-derive / 8765cee775ba30be14f8a38cea6be2b2d76b8381
commit8765cee775ba30be14f8a38cea6be2b2d76b8381[log] [tgz]
authorandroid-build-team Robot <android-build-team-robot@google.com>Fri Sep 18 03:07:26 2020 +0000
committerandroid-build-team Robot <android-build-team-robot@google.com>Fri Sep 18 03:07:26 2020 +0000
tree61f8cf9de82b1871077110126fbb23316afbde28
parent5f4c0b58106403d979138e9396e266be77bfa371 [diff]
parenta6d38d96dc2085667e926cd3a4a3e9e1735c5225 [diff]
Snap for 6845596 from a6d38d96dc2085667e926cd3a4a3e9e1735c5225 to sc-d1-release

Change-Id: Ideb182f4dcb0fa9e9019cafc65a61564c7a0c549
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.