| commit | e42445152a37747b751c79ab578a58832ffbed30 | [log] [tgz] |
|---|---|---|
| author | Joel Galenson <jgalenson@google.com> | Thu Jul 30 15:32:59 2020 +0000 |
| committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | Thu Jul 30 15:32:59 2020 +0000 |
| tree | ef7ed8a3171cf1906670f6b9fcbf20ef2660852a | |
| parent | 46d109f968cc3f3d988a0ac7d8b9e0696a29084e [diff] | |
| parent | ddfee16c0a95c04d30bb80135457bed71dc4b71b [diff] |
Import smallvec-1.4.0 am: ddfee16c0a Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/smallvec/+/1374113 Change-Id: I0988318551eb5fdfe50dba61d0845f25c0b01067
“Small vector” optimization for Rust: store up to a small number of items on the stack
use smallvec::{SmallVec, smallvec}; // This SmallVec can hold up to 4 items on the stack: let mut v: SmallVec<[i32; 4]> = smallvec![1, 2, 3, 4]; // It will automatically move its contents to the heap if // contains more than four items: v.push(5); // SmallVec points to a slice, so you can use normal slice // indexing and other methods to access its contents: v[0] = v[1] + v[2]; v.sort();