commit | 4be57e54e5e14c7215f767e34bd65c0ddf7e9dfa | [log] [tgz] |
---|---|---|
author | Deyao Ren <deyaoren@google.com> | Wed Oct 06 18:33:00 2021 +0000 |
committer | Deyao Ren <deyaoren@google.com> | Wed Oct 06 18:33:00 2021 +0000 |
tree | ddd6e3e3479e49519373673b5388e9dcb7be7aee | |
parent | af287c1919aed4fd29e632f184cd8e64dda94e34 [diff] | |
parent | 804d44d7d252ce4065aa6a544ada607ece05d797 [diff] |
Merge TP1A.211006.001 Change-Id: I228f117b409b14d92be6d86fa0dbb84c5b440898
Procedural macros to derive numeric traits in Rust.
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, }
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.Release notes are available in RELEASES.md.
The num-derive
crate is tested for rustc 1.31 and greater.
Licensed under either of
at your option.
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.