Rudimentary heuristic to insert parentheses when needed for RPIT overcaptures lint #134142
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fmease
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Dec 10, 2024
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We don't have basically any preexisting machinery to detect when parentheses are needed for types
We have hir::Generics::bounds_span_for_suggestions() for bounds (on generic params I guess?). I don't know if you can leverage it here in some way or generalize it. I haven't looked at it for a while.
Edit: And yeah, it checks for TyKind::Ref but not for TyKind::Ptr, I've been meaning to fix that for some time.
cc #120929
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That's more about ambiguities introduced by the bound of the RPIT themselves. This fixes ambiguities having to do with the parent type of the RPIT. I think both could use fixing and unification, but I don't think I'll do it here.
jieyouxu
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Dec 11, 2024
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@bors r+ rollup |
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Rollup of 8 pull requests Successful merges: - rust-lang#134079 (Add a note saying that `{u8,i8}::from_{be,le,ne}_bytes` is meaningless) - rust-lang#134105 (Validate self in host predicates correctly) - rust-lang#134136 (Exercise const trait interaction with default fields) - rust-lang#134139 ([AIX] keep profile-rt symbol alive) - rust-lang#134141 (Remove more traces of anonymous ADTs) - rust-lang#134142 (Rudimentary heuristic to insert parentheses when needed for RPIT overcaptures lint) - rust-lang#134158 (Rename `projection_def_id` to `item_def_id`) - rust-lang#134160 (Add vacation entry for myself in triagebot.toml) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup of 8 pull requests Successful merges: - rust-lang#134079 (Add a note saying that `{u8,i8}::from_{be,le,ne}_bytes` is meaningless) - rust-lang#134105 (Validate self in host predicates correctly) - rust-lang#134136 (Exercise const trait interaction with default fields) - rust-lang#134139 ([AIX] keep profile-rt symbol alive) - rust-lang#134141 (Remove more traces of anonymous ADTs) - rust-lang#134142 (Rudimentary heuristic to insert parentheses when needed for RPIT overcaptures lint) - rust-lang#134158 (Rename `projection_def_id` to `item_def_id`) - rust-lang#134160 (Add vacation entry for myself in triagebot.toml) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#134142 - compiler-errors:paren-sug, r=jieyouxu Rudimentary heuristic to insert parentheses when needed for RPIT overcaptures lint We don't have basically any preexisting machinery to detect when parentheses are needed for *types*. AFAICT, all of the diagnostics we have for opaques just... fail when they suggest `+ 'a` when that's ambiguous. Fixes rust-lang#132853
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We don't have basically any preexisting machinery to detect when parentheses are needed for types. AFAICT, all of the diagnostics we have for opaques just... fail when they suggest
+ 'awhen that's ambiguous.Fixes #132853