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gerrit-public.fairphone.software / platform / external / rust / crates / num-derive / 874ffb4423b7191f6ec6f1982b7e16cba02d092f
commit874ffb4423b7191f6ec6f1982b7e16cba02d092f[log] [tgz]
authorJoel Galenson <jgalenson@google.com>Wed Aug 05 20:25:53 2020 +0000
committerAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>Wed Aug 05 20:25:53 2020 +0000
tree404786a3ad03a6c5ea8afdcae500289bdc791f15
parentd5f837277ade86433ab68a027b79044ff3fda63e [diff]
parent4ba8a24259f202f2857325019188d41b0cdaaea6 [diff]
Add metadata files am: 4ba8a24259

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/num-derive/+/1391411

Change-Id: I0a3243b151058de8abdccf813ec85a337accb1fe
tree: 404786a3ad03a6c5ea8afdcae500289bdc791f15
  1. src/
  2. tests/
  3. LICENSE ⇨ LICENSE-APACHE
  4. .cargo_vcs_info.json
  5. .gitignore
  6. Cargo.toml
  7. Cargo.toml.orig
  8. LICENSE-APACHE
  9. LICENSE-MIT
  10. METADATA
  11. MODULE_LICENSE_APACHE2
  12. README.md
  13. RELEASES.md
README.md

num-derive

crate documentation minimum rustc 1.31 Travis 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.