Gitiles
Code Review Sign In
gerrit-public.fairphone.software / platform / external / rust / crates / num-derive / 1f4d15385154d731583d694a5b34b0f035fd5473
commit1f4d15385154d731583d694a5b34b0f035fd5473[log] [tgz]
authorAndroid Build Coastguard Worker <android-build-coastguard-worker@google.com>Mon Dec 20 11:04:51 2021 +0000
committerAndroid Build Coastguard Worker <android-build-coastguard-worker@google.com>Mon Dec 20 11:04:51 2021 +0000
treec9a58f4fc6663d85c63dcb9f4a8cf00c85f3993e
parent2745f57ceb4a0e3ef8465a006318d8edb5801f46 [diff]
parentf84a25f31c7f7263974d2c13c0e5a7823c3587c2 [diff]
Snap for 8014993 from f84a25f31c7f7263974d2c13c0e5a7823c3587c2 to s-keystone-qcom-release

Change-Id: I51f474a2058d8230913e22e366d3c082d12202d4
tree: c9a58f4fc6663d85c63dcb9f4a8cf00c85f3993e
  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.

License

Licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.