commit | aa0a91b4a281b7cdfc61c92d3991891af7c4e13a | [log] [tgz] |
---|---|---|
author | android-build-team Robot <[email protected]> | Wed Nov 25 02:04:36 2020 +0000 |
committer | android-build-team Robot <[email protected]> | Wed Nov 25 02:04:36 2020 +0000 |
tree | 66333ecac74c5b21a5d6b4d4d2b354e4e7556c19 | |
parent | 506cee421896b7d01af09ae93e88e57b86392f83 [diff] | |
parent | 58ad9420bd1fe333538eccfa425042154c734010 [diff] |
Snap for 6993940 from 58ad9420bd1fe333538eccfa425042154c734010 to sc-d1-release Change-Id: Id0bec86717158ff24dc6fc3089999b7aa1c40c3d
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.