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Only trigger refine lint on reachable traits

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This commit is contained in:
Michael Goulet 2023-09-29 18:36:20 +00:00
parent 7b4b1b08b6
commit 06d9602d33
3 changed files with 23 additions and 8 deletions
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8
compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs
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@ -23,8 +23,12 @@ pub(super) fn check_refining_return_position_impl_trait_in_trait<'tcx>(
if !tcx.impl_method_has_trait_impl_trait_tys(impl_m.def_id) {
return;
}
// crate-private traits don't have any library guarantees, there's no need to do this check.
if !tcx.visibility(trait_m.container_id(tcx)).is_public() {
// unreachable traits don't have any library guarantees, there's no need to do this check.
if trait_m
.container_id(tcx)
.as_local()
.is_some_and(|trait_def_id| !tcx.effective_visibilities(()).is_reachable(trait_def_id))
{
return;
}