7fa00aa75f
Don't recompute `DisambiguatorState` for every RPITIT in trait definition The `associated_type_for_impl_trait_in_trait` currently needs to rerun the `RPITVisitor` for every RPITIT to compute its disambiguator. Instead of synthesizing all of the RPITITs def ids one at a time in different queries, just synthesize them inside of the `associated_types_for_impl_traits_in_associated_fn` query. There we can just share the same `DisambiguatorState` for all the RPITITs in one function signature. r? ``````@Zoxc`````` or ``````@oli-obk`````` cc rust-lang/rust#140453 |
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For high-level intro to how type checking works in rustc, see the type checking chapter of the rustc dev guide.