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Pull out logic from #111131, plus some new logic in EvalCtxt::normalize_opaque_type

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Co-authored-by: lcnr <rust@lcnr.de>
This commit is contained in:
Michael Goulet 2023-05-09 18:56:43 +00:00
parent 7664dfe433
commit 4d80b8090c
13 changed files with 122 additions and 43 deletions
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6
compiler/rustc_trait_selection/src/traits/auto_trait.rs
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@ -834,8 +834,10 @@ impl<'tcx> AutoTraitFinder<'tcx> {
| ty::PredicateKind::Subtype(..)
// FIXME(generic_const_exprs): you can absolutely add this as a where clauses
| ty::PredicateKind::ConstEvaluatable(..)
| ty::PredicateKind::Coerce(..)
| ty::PredicateKind::TypeWellFormedFromEnv(..) => {}
| ty::PredicateKind::Coerce(..) => {}
ty::PredicateKind::TypeWellFormedFromEnv(..) => {
bug!("predicate should only exist in the environment: {bound_predicate:?}")
}
ty::PredicateKind::Ambiguous => return false,
};
}