commit | e198a8e5b4b74065bfdbbc565b339abd69ca1608 | [log] [tgz] |
---|---|---|
author | Joel Galenson <jgalenson@google.com> | Wed Dec 15 16:42:59 2021 +0000 |
committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Wed Dec 15 16:42:59 2021 +0000 |
tree | 75f57a29ac6cac238a6e6aebb0f09f5d5c68f1a6 | |
parent | b2ac41244de18099ef118f48ac5116853546818d [diff] | |
parent | a328bdd6991cbb45862170a767acb29c46c31dd5 [diff] |
Merge "Refresh Android.bp, cargo2android.json, TEST_MAPPING." am: d3da86843f am: a328bdd699 Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/num-derive/+/1912647 Change-Id: Ib72b294f79e2afca4e899168dfb4589b9a449214
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.