Gitiles
Code Review Sign In
gerrit-public.fairphone.software / platform / external / rust / crates / num-derive / 2d2123de22235e1a73365ced2aee40b1dd915881
commit2d2123de22235e1a73365ced2aee40b1dd915881[log] [tgz]
authorHaibo Huang <hhb@google.com>Tue Aug 11 04:09:43 2020 +0000
committerAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>Tue Aug 11 04:09:43 2020 +0000
treea292ad4adba12cb99a3c1abb1c9e7d6616bad541
parent0f1942bd25c7757825808a28f106363505a5ad21 [diff]
parent0cc4256df7771df5de5f713dfbbfced51c9f14fa [diff]
Upgrade rust/crates/num-derive to 0.3.1 am: 7192095214 am: f22aa339ea am: 1a282d3948 am: 68a4795681 am: 0cc4256df7

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/num-derive/+/1392776

Change-Id: I42fb93a5da0ee2baa0d2db925b226ae107ed2787
tree: a292ad4adba12cb99a3c1abb1c9e7d6616bad541
  1. src/
  2. tests/
  3. LICENSE ⇨ LICENSE-APACHE
  4. .cargo_vcs_info.json
  5. .gitignore
  6. Android.bp
  7. Cargo.toml
  8. Cargo.toml.orig
  9. LICENSE-APACHE
  10. LICENSE-MIT
  11. METADATA
  12. MODULE_LICENSE_APACHE2
  13. README.md
  14. RELEASES.md
README.md

num-derive

crate documentation minimum rustc 1.31 build status

Procedural macros to derive numeric traits in Rust.

Usage

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,
}

Optional features

  • 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.

Releases

Release notes are available in RELEASES.md.

Compatibility

The num-derive crate is tested for rustc 1.31 and greater.