bjoernager/rust
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Infer all inference variables via InferCx

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The previous algorithm was correct for the example given in its
documentation, but when the TAIT was declared as a free item
instead of an associated item, the generic parameters were the
wrong ones.
This commit is contained in:
Oli Scherer 2021-07-16 17:34:23 +00:00
parent 24a8d3bce3
commit ebe21ac23a
5 changed files with 36 additions and 144 deletions
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2
compiler/rustc_middle/src/ty/mod.rs
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@ -856,7 +856,7 @@ impl<'tcx> InstantiatedPredicates<'tcx> {
}
}
#[derive(Copy, Clone, Debug, PartialEq, Eq, HashStable, TyEncodable, TyDecodable)]
#[derive(Copy, Clone, Debug, PartialEq, Eq, HashStable, TyEncodable, TyDecodable, TypeFoldable)]
pub struct OpaqueTypeKey<'tcx> {
pub def_id: DefId,
pub substs: SubstsRef<'tcx>,