use try_normalize_erasing_regions in RevealAllVisitor
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@ -36,6 +36,9 @@ impl<'tcx> MutVisitor<'tcx> for RevealAllVisitor<'tcx> {
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#[inline]
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fn visit_ty(&mut self, ty: &mut Ty<'tcx>, _: TyContext) {
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*ty = self.tcx.normalize_erasing_regions(self.param_env, ty);
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// We have to use `try_normalize_erasing_regions` here, since it's
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// possible that we visit impossible-to-satisfy where clauses here,
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// see #91745
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*ty = self.tcx.try_normalize_erasing_regions(self.param_env, *ty).unwrap_or(ty);
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}
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}
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21
src/test/ui/mir/issue-91745.rs
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21
src/test/ui/mir/issue-91745.rs
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@ -0,0 +1,21 @@
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// check-pass
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pub trait Foo {
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type Bar;
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}
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pub trait Broken {
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type Assoc;
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fn broken(&self) where Self::Assoc: Foo;
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}
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impl<T> Broken for T {
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type Assoc = ();
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fn broken(&self) where Self::Assoc: Foo {
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let _x: <Self::Assoc as Foo>::Bar;
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}
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}
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fn main() {
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let _m: &dyn Broken<Assoc=()> = &();
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}
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