| commit | b30ae73441dc20bc47bfdab77344f075057c7501 | [log] [tgz] |
|---|---|---|
| author | Jakob Vukalovic <[email protected]> | Fri May 19 10:45:33 2023 +0000 |
| committer | Automerger Merge Worker <[email protected]> | Fri May 19 10:45:33 2023 +0000 |
| tree | f8755189188b3d893bffb8e26b835c89ffed6561 | |
| parent | cdebc8bf6067f9c5a9b7ee1c0b80469c3cb6a6ea [diff] | |
| parent | fa6723a9686c73b6c7a2d6a2d77987acb4ece533 [diff] |
Upgrade to 2.2.1 am: fa6723a968 Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/bitflags/+/2565030 Change-Id: I0c71e796f38f6bd263647918ec4f17f0156dcecd Signed-off-by: Automerger Merge Worker <[email protected]>
A Rust macro to generate structures which behave like a set of bitflags
Add this to your Cargo.toml:
[dependencies] bitflags = "2.2.1"
and this to your source code:
use bitflags::bitflags;
Generate a flags structure:
use bitflags::bitflags; // The `bitflags!` macro generates `struct`s that manage a set of flags. bitflags! { #[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] struct Flags: u32 { const A = 0b00000001; const B = 0b00000010; const C = 0b00000100; const ABC = Self::A.bits() | Self::B.bits() | Self::C.bits(); } } fn main() { let e1 = Flags::A | Flags::C; let e2 = Flags::B | Flags::C; assert_eq!((e1 | e2), Flags::ABC); // union assert_eq!((e1 & e2), Flags::C); // intersection assert_eq!((e1 - e2), Flags::A); // set difference assert_eq!(!e2, Flags::A); // set complement }
The minimum supported Rust version is documented in the Cargo.toml file. This may be bumped in minor releases as necessary.