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Use try_normalize_erasing_regions in RevealAllVisitor #91875

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merged 1 commit into from
Dec 14, 2021

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b-naber
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@b-naber b-naber commented Dec 13, 2021

@rustbot rustbot added the T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. label Dec 13, 2021
@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Dec 13, 2021
@@ -36,6 +36,6 @@ impl<'tcx> MutVisitor<'tcx> for RevealAllVisitor<'tcx> {

#[inline]
fn visit_ty(&mut self, ty: &mut Ty<'tcx>, _: TyContext) {
*ty = self.tcx.normalize_erasing_regions(self.param_env, ty);
*ty = self.tcx.try_normalize_erasing_regions(self.param_env, *ty).unwrap_or(ty);
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Can you add a comment explaining that the MIR we are visiting might have impossible-to-satiafy where clauses?

@Aaron1011
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Thanks!

@bors r+

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bors commented Dec 14, 2021

📌 Commit f3ecd64 has been approved by Aaron1011

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Dec 14, 2021
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Dec 14, 2021
…g, r=Aaron1011

Use try_normalize_erasing_regions in RevealAllVisitor

Fixes rust-lang#91745

Thanks to `@Aaron1011` for [pointing out the problem](rust-lang#91745 (comment)).

r? `@Aaron1011`
bors added a commit to rust-lang-ci/rust that referenced this pull request Dec 14, 2021
…askrgr

Rollup of 7 pull requests

Successful merges:

 - rust-lang#91529 (add BinaryHeap::try_reserve and BinaryHeap::try_reserve_exact)
 - rust-lang#91820 (Suggest to specify a target triple when lang item is missing)
 - rust-lang#91851 (Make `MaybeUninit::zeroed` `const`)
 - rust-lang#91875 (Use try_normalize_erasing_regions in RevealAllVisitor)
 - rust-lang#91887 (Remove `in_band_lifetimes` from `rustc_const_eval`)
 - rust-lang#91892 (Fix HashStable implementation on InferTy)
 - rust-lang#91893 (Remove `in_band_lifetimes` from `rustc_hir`)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
@bors bors merged commit b50bb65 into rust-lang:master Dec 14, 2021
@rustbot rustbot added this to the 1.59.0 milestone Dec 14, 2021
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