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| author | Yuki Okushi <huyuumi.dev@gmail.com> | 2021-02-18 15:57:27 +0900 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-02-18 15:57:27 +0900 |
| commit | 9d33abdc2a1dce2f933b84fff4ea351216365ede (patch) | |
| tree | 436566234f893d2a6299f22d5ac0125e8ed8735b /compiler | |
| parent | 0c25d154bd5b48819f490ac4a630f28fcfe4d321 (diff) | |
| parent | 64b5b75e65f010d88175fbb98b4396ccede5c32e (diff) | |
| download | rust-9d33abdc2a1dce2f933b84fff4ea351216365ede.tar.gz rust-9d33abdc2a1dce2f933b84fff4ea351216365ede.zip | |
Rollup merge of #82155 - tmiasko:once, r=matthewjasper
Use !Sync std::lazy::OnceCell in usefulness checking The `rustc_data_structures::sync::OnceCell` is thread-safe when building a parallel compiler. This is unnecessary for the purposes of pattern usefulness checking. Use `!Sync` `std::lazy::OnceCell` instead.
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/rustc_mir_build/src/thir/pattern/usefulness.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_mir_build/src/thir/pattern/usefulness.rs b/compiler/rustc_mir_build/src/thir/pattern/usefulness.rs index 010fe4fd524..38b7e50d786 100644 --- a/compiler/rustc_mir_build/src/thir/pattern/usefulness.rs +++ b/compiler/rustc_mir_build/src/thir/pattern/usefulness.rs @@ -289,7 +289,6 @@ use super::{PatternFoldable, PatternFolder}; use rustc_data_structures::captures::Captures; use rustc_data_structures::fx::FxHashMap; -use rustc_data_structures::sync::OnceCell; use rustc_arena::TypedArena; use rustc_hir::def_id::DefId; @@ -300,6 +299,7 @@ use rustc_span::Span; use smallvec::{smallvec, SmallVec}; use std::fmt; use std::iter::{FromIterator, IntoIterator}; +use std::lazy::OnceCell; crate struct MatchCheckCtxt<'a, 'tcx> { crate tcx: TyCtxt<'tcx>, |