rust-lang/rust
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

implement and use NormalizesTo

Browse Source
This commit is contained in:
lcnr
2023-12-07 18:20:27 +01:00
parent 3978f545ba
commit ffb4c08a81
21 changed files with 135 additions and 125 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
compiler/rustc_trait_selection/src/traits/structural_normalize.rs
View File

@@ -25,8 +25,7 @@ impl<'tcx> StructurallyNormalizeExt<'tcx> for At<'_, 'tcx> {
// FIXME(-Ztrait-solver=next): correctly handle
// overflow here.
for _ in 0..256 {
let ty::Alias(ty::Projection | ty::Inherent | ty::Weak, projection_ty) = *ty.kind()
else {
let ty::Alias(ty::Projection | ty::Inherent | ty::Weak, alias) = *ty.kind() else {
break;
};
@@ -38,10 +37,7 @@ impl<'tcx> StructurallyNormalizeExt<'tcx> for At<'_, 'tcx> {
self.infcx.tcx,
self.cause.clone(),
self.param_env,
ty::Binder::dummy(ty::ProjectionPredicate {
projection_ty,
term: new_infer_ty.into(),
}),
ty::NormalizesTo { alias, term: new_infer_ty.into() },
);
if self.infcx.predicate_may_hold(&obligation) {
fulfill_cx.register_predicate_obligation(self.infcx, obligation);