commit | b2ac41244de18099ef118f48ac5116853546818d | [log] [tgz] |
---|---|---|
author | Joel Galenson <jgalenson@google.com> | Mon Aug 30 21:29:57 2021 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Mon Aug 30 21:29:57 2021 +0000 |
tree | ddd6e3e3479e49519373673b5388e9dcb7be7aee | |
parent | 7c087e53655799f010f67023f96094253d50269f [diff] | |
parent | fb113d26314818d74d2f8981257fb1b8b27d33bc [diff] |
Update TEST_MAPPING am: 739fe9c718 am: 86872cc080 am: fb113d2631 Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/num-derive/+/1813683 Change-Id: Ia7fa393fe1eca80027bfce5c6f38b3421e7740e8
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.