| commit | 732949b3d566357cee644c834c70bc883d7d43dd | [log] [tgz] |
|---|---|---|
| author | Alice Wang <aliceywang@google.com> | Thu Jun 08 14:09:02 2023 +0000 |
| committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Thu Jun 08 14:09:02 2023 +0000 |
| tree | 2cdb77df6398748f9d131b6ba9bc9c8670392e0a | |
| parent | 25f2fe7247129bba2b7765a287cc8f13af4a202c [diff] | |
| parent | 7d3bf61ce74ddbf8bdc552522c17450440f6e218 [diff] |
Make libbitflags-1.3.2 visible to com.android.uwb am: 7642f7752d am: 9449d03c4a am: acc3cf2062 am: 7d3bf61ce7 Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/bitflags/+/2614374 Change-Id: Iab6b1e700d77a3fb9f543592380bbfaed2ba433a Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
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.