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| author | Nicholas Nethercote <n.nethercote@gmail.com> | 2022-09-16 11:45:33 +1000 |
|---|---|---|
| committer | Nicholas Nethercote <n.nethercote@gmail.com> | 2022-09-29 08:44:52 +1000 |
| commit | f07d4efc4555c4154fb408b2d230fb72ad53b8be (patch) | |
| tree | 2aadca19dd99db6660b00c1ed969b5904d069b81 /compiler/rustc_mir_build/src/thir | |
| parent | 5f29a13a5b985229fce5fbb75f9af838734ad264 (diff) | |
| download | rust-f07d4efc4555c4154fb408b2d230fb72ad53b8be.tar.gz rust-f07d4efc4555c4154fb408b2d230fb72ad53b8be.zip | |
Shrink `hir::def::Res`.
`Res::SelfTy` currently has two `Option`s. When the second one is `Some` the first one is never consulted. So we can split it into two variants, `Res::SelfTyParam` and `Res::SelfTyAlias`, reducing the size of `Res` from 24 bytes to 12. This then shrinks `hir::Path` and `hir::PathSegment`, which are the HIR types that take up the most space.
Diffstat (limited to 'compiler/rustc_mir_build/src/thir')
| -rw-r--r-- | compiler/rustc_mir_build/src/thir/pattern/mod.rs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/rustc_mir_build/src/thir/pattern/mod.rs b/compiler/rustc_mir_build/src/thir/pattern/mod.rs index cd186421bb1..895af80bd7f 100644 --- a/compiler/rustc_mir_build/src/thir/pattern/mod.rs +++ b/compiler/rustc_mir_build/src/thir/pattern/mod.rs @@ -433,7 +433,8 @@ impl<'a, 'tcx> PatCtxt<'a, 'tcx> { | DefKind::AssocTy, _, ) - | Res::SelfTy { .. } + | Res::SelfTyParam { .. } + | Res::SelfTyAlias { .. } | Res::SelfCtor(..) => PatKind::Leaf { subpatterns }, _ => { let pattern_error = match res { |