Don't Create ParamCandidate When Obligation Contains Errors
#122360
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Please squash this into one commit. Please also leave a comment that explains what this special case is for, preferably referencing an issue and explaining some motivation behind why the fix works. @rustbot atuhor |
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…ompiler-errors Don't Create `ParamCandidate` When Obligation Contains Errors Fixes rust-lang#121941 I'm not sure if I understand this correctly but this bug was caused by an error type incorrectly matching against `ParamCandidate`. This was introduced by the changes made in rust-lang#72621 (figured using cargo-bisect-rustc). This PR fixes it by skipping `ParamCandidate` generation when an error type is involved. Also, this is similar to rust-lang#73005 but addresses `ParamCandidate` instead of `ImplCandidate`.
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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#122360 - veera-sivarajan:bugfix-121941, r=compiler-errors Don't Create `ParamCandidate` When Obligation Contains Errors Fixes rust-lang#121941 I'm not sure if I understand this correctly but this bug was caused by an error type incorrectly matching against `ParamCandidate`. This was introduced by the changes made in rust-lang#72621 (figured using cargo-bisect-rustc). This PR fixes it by skipping `ParamCandidate` generation when an error type is involved. Also, this is similar to rust-lang#73005 but addresses `ParamCandidate` instead of `ImplCandidate`.
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Fixes #121941
I'm not sure if I understand this correctly but this bug was caused by an error type incorrectly matching against
ParamCandidate. This was introduced by the changes made in #72621 (figured using cargo-bisect-rustc).This PR fixes it by skipping
ParamCandidategeneration when an error type is involved. Also, this is similar to #73005 but addressesParamCandidateinstead ofImplCandidate.