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erase late-bound regions in dyn projection types for debuginfo #95020

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Merged
merged 1 commit into from
Mar 18, 2022
Merged

erase late-bound regions in dyn projection types for debuginfo #95020

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3 changes: 2 additions & 1 deletion compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -217,7 +217,8 @@ fn push_debuginfo_type_name<'tcx>(
let projection_bounds: SmallVec<[_; 4]> = trait_data
.projection_bounds()
.map(|bound| {
let ExistentialProjection { item_def_id, term, .. } = bound.skip_binder();
let ExistentialProjection { item_def_id, term, .. } =
tcx.erase_late_bound_regions(bound);
// FIXME(associated_const_equality): allow for consts here
(item_def_id, term.ty().unwrap())
})
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7 changes: 7 additions & 0 deletions src/test/ui/debuginfo/late-bound-projection.rs
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@@ -0,0 +1,7 @@
// build-pass
// compile-flags: -Cdebuginfo=2 --crate-type=rlib
// Fixes issue #94998

pub trait Trait {}

pub fn run(_: &dyn FnOnce(&()) -> Box<dyn Trait + '_>) {}