pattern analysis: Store field indices in DeconstructedPat to avoid virtual wildcards
#121820
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Right now this is just `self.fields.len()` but that'll change in the next commit. `arity` will be useful for the `Debug` impl.
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Ty! @bors r=@compiler-errors rollup |
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pattern analysis: Store field indices in `DeconstructedPat` to avoid virtual wildcards
For a pattern like `Struct { field3: true, .. }`, in pattern analysis we represent it as `Struct { field1: _, field2: _, field3: true, field4: _ }`. This PR makes it so we store `Struct { field3: true, .. }` instead. This means we never have to create fake `_` patterns during lowering.
r? `@compiler-errors`
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…iaskrgr Rollup of 10 pull requests Successful merges: - rust-lang#121820 (pattern analysis: Store field indices in `DeconstructedPat` to avoid virtual wildcards) - rust-lang#121908 (match lowering: don't collect test alternatives ahead of time) - rust-lang#122203 (Add `intrinsic_name` to get plain intrinsic name) - rust-lang#122226 (coverage: Remove or migrate all unstable values of `-Cinstrument-coverage`) - rust-lang#122255 (Use `min_exhaustive_patterns` in core & std) - rust-lang#122360 ( Don't Create `ParamCandidate` When Obligation Contains Errors ) - rust-lang#122375 (CFI: Break tests into smaller files) - rust-lang#122383 (Enable PR tracking review assignment for rust-lang/rust) - rust-lang#122386 (Move `Once` implementations to `sys`) - rust-lang#122400 (Fix ICE in diagnostics for parenthesized type arguments) r? `@ghost` `@rustbot` modify labels: rollup
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…iaskrgr Rollup of 10 pull requests Successful merges: - rust-lang#121820 (pattern analysis: Store field indices in `DeconstructedPat` to avoid virtual wildcards) - rust-lang#121908 (match lowering: don't collect test alternatives ahead of time) - rust-lang#122203 (Add `intrinsic_name` to get plain intrinsic name) - rust-lang#122226 (coverage: Remove or migrate all unstable values of `-Cinstrument-coverage`) - rust-lang#122255 (Use `min_exhaustive_patterns` in core & std) - rust-lang#122360 ( Don't Create `ParamCandidate` When Obligation Contains Errors ) - rust-lang#122383 (Enable PR tracking review assignment for rust-lang/rust) - rust-lang#122386 (Move `Once` implementations to `sys`) - rust-lang#122400 (Fix ICE in diagnostics for parenthesized type arguments) - rust-lang#122410 (rustdoc: do not preload fonts when browsing locally) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#121820 - Nadrieril:idxpat2, r=compiler-errors pattern analysis: Store field indices in `DeconstructedPat` to avoid virtual wildcards For a pattern like `Struct { field3: true, .. }`, in pattern analysis we represent it as `Struct { field1: _, field2: _, field3: true, field4: _ }`. This PR makes it so we store `Struct { field3: true, .. }` instead. This means we never have to create fake `_` patterns during lowering. r? ``@compiler-errors``
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For a pattern like
Struct { field3: true, .. }, in pattern analysis we represent it asStruct { field1: _, field2: _, field3: true, field4: _ }. This PR makes it so we storeStruct { field3: true, .. }instead. This means we never have to create fake_patterns during lowering.r? @compiler-errors