bjoernager/rust
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add AliasEq to PredicateKind

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This commit is contained in:
Boxy 2023-02-10 13:43:29 +00:00
parent 9b8dbd558c
commit 23ab2464be
25 changed files with 80 additions and 5 deletions
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4
compiler/rustc_trait_selection/src/traits/object_safety.rs
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@ -327,6 +327,8 @@ fn predicate_references_self<'tcx>(
// possible alternatives.
if data.projection_ty.substs[1..].iter().any(has_self_ty) { Some(sp) } else { None }
}
ty::PredicateKind::AliasEq(..) => bug!("`AliasEq` not allowed as assumption"),
ty::PredicateKind::WellFormed(..)
| ty::PredicateKind::ObjectSafe(..)
| ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..))
@ -334,6 +336,7 @@ fn predicate_references_self<'tcx>(
| ty::PredicateKind::ClosureKind(..)
| ty::PredicateKind::Subtype(..)
| ty::PredicateKind::Coerce(..)
// FIXME(generic_const_exprs): this can mention `Self`
| ty::PredicateKind::ConstEvaluatable(..)
| ty::PredicateKind::ConstEquate(..)
| ty::PredicateKind::Ambiguous
@ -368,6 +371,7 @@ fn generics_require_sized_self(tcx: TyCtxt<'_>, def_id: DefId) -> bool {
| ty::PredicateKind::Clause(ty::Clause::TypeOutlives(..))
| ty::PredicateKind::ConstEvaluatable(..)
| ty::PredicateKind::ConstEquate(..)
| ty::PredicateKind::AliasEq(..)
| ty::PredicateKind::Ambiguous
| ty::PredicateKind::TypeWellFormedFromEnv(..) => false,
}