| commit | b91aab0674e81bcbf0653176a3eb8f992209c5b8 | [log] [tgz] |
|---|---|---|
| author | Joel Galenson <[email protected]> | Wed Dec 15 17:27:05 2021 +0000 |
| committer | Automerger Merge Worker <[email protected]> | Wed Dec 15 17:27:05 2021 +0000 |
| tree | 75f57a29ac6cac238a6e6aebb0f09f5d5c68f1a6 | |
| parent | 3d02fa101fc72277ee68aeed1fbce59a240ee6a0 [diff] | |
| parent | e198a8e5b4b74065bfdbbc565b339abd69ca1608 [diff] |
Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: d3da86843f am: a328bdd699 am: e198a8e5b4 Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/num-derive/+/1912647 Change-Id: Ie30e0519d985b2dfd966ebf52dcddd93245e6a03
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.