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ICE in new solver if we see an inference variable

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This commit is contained in:
Michael Goulet
2023-01-25 00:38:34 +00:00
parent 2a17174ee6
commit 0f24e11ef5
3 changed files with 33 additions and 22 deletions
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6
compiler/rustc_trait_selection/src/solve/project_goals.rs
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@@ -427,7 +427,7 @@ impl<'tcx> assembly::GoalKind<'tcx> for ProjectionPredicate<'tcx> {
.subst(tcx, &[ty::GenericArg::from(goal.predicate.self_ty())])
}
ty::Infer(ty::TyVar(..)) | ty::Alias(_, _) | ty::Param(_) | ty::Placeholder(..) => {
ty::Alias(_, _) | ty::Param(_) | ty::Placeholder(..) => {
// FIXME(ptr_metadata): It would also be possible to return a `Ok(Ambig)` with no constraints.
let sized_predicate = ty::Binder::dummy(tcx.at(DUMMY_SP).mk_trait_ref(
LangItem::Sized,
@@ -470,7 +470,9 @@ impl<'tcx> assembly::GoalKind<'tcx> for ProjectionPredicate<'tcx> {
}
},
ty::Infer(ty::FreshTy(..) | ty::FreshIntTy(..) | ty::FreshFloatTy(..))
ty::Infer(
ty::TyVar(_) | ty::FreshTy(_) | ty::FreshIntTy(_) | ty::FreshFloatTy(_),
)
| ty::Bound(..) => bug!(
"unexpected self ty `{:?}` when normalizing `<T as Pointee>::Metadata`",
goal.predicate.self_ty()