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Handle ambiguous projections

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This commit is contained in:
Samuel Moelius 2023-02-25 15:54:31 -05:00
parent b528cc90bc
commit f95d9deafd
2 changed files with 21 additions and 4 deletions
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8
clippy_lints/src/dereference.rs
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@ -1357,10 +1357,10 @@ fn replace_types<'tcx>(
&& let Some(term_ty) = projection_predicate.term.ty()
&& let ty::Param(term_param_ty) = term_ty.kind()
{
let item_def_id = projection_predicate.projection_ty.def_id;
let assoc_item = cx.tcx.associated_item(item_def_id);
let projection = cx.tcx
.mk_projection(assoc_item.def_id, cx.tcx.mk_substs_trait(new_ty, []));
let projection = cx.tcx.mk_ty(ty::Alias(
ty::Projection,
projection_predicate.projection_ty.with_self_ty(cx.tcx, new_ty),
));
if let Ok(projected_ty) = cx.tcx.try_normalize_erasing_regions(cx.param_env, projection)
&& substs[term_param_ty.index as usize] != ty::GenericArg::from(projected_ty)