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| author | bors <bors@rust-lang.org> | 2024-02-12 22:16:58 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2024-02-12 22:16:58 +0000 |
| commit | 74c3f5a146860c94ff4d179fc3bfa34f879adf41 (patch) | |
| tree | 1b858766075942894e1611bb20073611e8992ae4 /compiler/rustc_feature/src | |
| parent | b381d3ab27f788f990551100c4425bb782d26d76 (diff) | |
| parent | be29cd173a87a7d4a87ec6db62f26c3b7666d14a (diff) | |
| download | rust-74c3f5a146860c94ff4d179fc3bfa34f879adf41.tar.gz rust-74c3f5a146860c94ff4d179fc3bfa34f879adf41.zip | |
Auto merge of #120324 - Nadrieril:remove-interior-mutability, r=compiler-errors
pattern_analysis: track usefulness without interior mutability Because of or-patterns, exhaustiveness needs to be able to lint if a sub-pattern is redundant, e.g. in `Some(_) | Some(true)`. So far the only sane solution I had found was interior mutability. This is a bit of an abstraction leak, and would become a footgun if we ever reused the same `DeconstructedPat`. This PR replaces interior mutability with an address-indexed hashmap, which is logically equivalent.
Diffstat (limited to 'compiler/rustc_feature/src')
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