rust/compiler/rustc_middle at ea3fb7bc2cd64fc124209e6f4ffcda8d053fd7ae - rust

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Matthias Krüger 8ddc0df1f1 Rollup merge of #116219 - compiler-errors:relate-alias-ty-with-variance, r=lcnr

Relate alias ty with variance

In the new solver, turns out that the subst-relate branch of the alias-relate predicate was relating args invariantly even for opaques, which have variance 💀.

This change is a bit more invasive, but I'd rather not special-case it [here](https://github.com/rust-lang/rust/blob/aeaa5c30e5c9041264a2e8314b68ad84c2dc3169/compiler/rustc_trait_selection/src/solve/alias_relate.rs#L171-L190) and then have it break elsewhere. I'm doing a perf run to see if the extra call to `def_kind` is that expensive, if it is, I'll reconsider.

r? ``@lcnr``

2023-10-11 20:08:20 +02:00

src

Rollup merge of #116219 - compiler-errors:relate-alias-ty-with-variance, r=lcnr

2023-10-11 20:08:20 +02:00

Cargo.toml

Replace in-tree rustc_apfloat with the new version of the crate

2023-07-26 10:20:15 -04:00

messages.ftl

don't point at const usage site for resolution-time errors

2023-09-14 22:34:05 +02:00

README.md

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README.md

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