always normalize LoweredTy in the new solver
#120378
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@bors r=compiler-errors rollup |
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always normalize `LoweredTy` in the new solver I currently expect us to stop using alias bound candidates of normalizable aliases due to rust-lang/trait-system-refactor-initiative#77 by landing rust-lang#119744. At this point it mostly doesn't matter whether we eagerly normalize (and replace with infer vars in case of ambiguity). cc rust-lang#113473 previous attempt The infer var replacement for ambiguous projections can in very rare cases: - weaken inference rust-lang/trait-system-refactor-initiative#81 - strengthen inference rust-lang/trait-system-refactor-initiative#7 I do not expect this impact on inference to significantly affect real crates. r? `@compiler-errors`
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…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#103522 (stabilise array methods) - rust-lang#113489 (impl `From<&[T; N]>` for `Cow<[T]>`) - rust-lang#119562 (Rename `pointer` field on `Pin`) - rust-lang#119800 (Document `rustc_index::vec::IndexVec`) - rust-lang#120368 (llvm-wrapper: remove llvm 12 hack) - rust-lang#120378 (always normalize `LoweredTy` in the new solver) - rust-lang#120382 (Classify closure arguments in refutable pattern in argument error) - rust-lang#120389 (Add fmease to the compiler review rotation) r? `@ghost` `@rustbot` modify labels: rollup
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…iaskrgr Rollup of 12 pull requests Successful merges: - rust-lang#103522 (stabilise array methods) - rust-lang#113489 (impl `From<&[T; N]>` for `Cow<[T]>`) - rust-lang#119342 (Emit suggestion when trying to write exclusive ranges as `..<`) - rust-lang#119562 (Rename `pointer` field on `Pin`) - rust-lang#119800 (Document `rustc_index::vec::IndexVec`) - rust-lang#120205 (std: make `HEAP` initializer never inline) - rust-lang#120277 (Normalize field types before checking validity) - rust-lang#120311 (core: add `From<core::ascii::Char>` implementations) - rust-lang#120366 (mark a doctest with UB as no_run) - rust-lang#120378 (always normalize `LoweredTy` in the new solver) - rust-lang#120382 (Classify closure arguments in refutable pattern in argument error) - rust-lang#120389 (Add fmease to the compiler review rotation) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#120378 - lcnr:normalize-ast, r=compiler-errors always normalize `LoweredTy` in the new solver I currently expect us to stop using alias bound candidates of normalizable aliases due to rust-lang/trait-system-refactor-initiative#77 by landing rust-lang#119744. At this point it mostly doesn't matter whether we eagerly normalize (and replace with infer vars in case of ambiguity). cc rust-lang#113473 previous attempt The infer var replacement for ambiguous projections can in very rare cases: - weaken inference rust-lang/trait-system-refactor-initiative#81 - strengthen inference rust-lang/trait-system-refactor-initiative#7 I do not expect this impact on inference to significantly affect real crates. r? ``@compiler-errors``
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I currently expect us to stop using alias bound candidates of normalizable aliases due to rust-lang/trait-system-refactor-initiative#77 by landing #119744. At this point it mostly doesn't matter whether we eagerly normalize (and replace with infer vars in case of ambiguity). cc #113473 previous attempt
The infer var replacement for ambiguous projections can in very rare cases:
AliasRelatehides info in transitive cases trait-system-refactor-initiative#7I do not expect this impact on inference to significantly affect real crates.
r? @compiler-errors