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Check GAT, IAT, and weak type where clauses during projection

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This commit is contained in:
Michael Goulet 2023-07-07 19:22:22 +00:00
parent 085ae9e8b4
commit c9ce51b5c7
6 changed files with 112 additions and 16 deletions
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14
compiler/rustc_trait_selection/src/traits/project.rs
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@ -1402,9 +1402,17 @@ pub fn compute_inherent_assoc_ty_args<'a, 'b, 'tcx>(
let impl_def_id = tcx.parent(alias_ty.def_id);
let impl_args = selcx.infcx.fresh_args_for_item(cause.span, impl_def_id);
let impl_ty = tcx.type_of(impl_def_id).instantiate(tcx, impl_args);
let impl_ty =
normalize_with_depth_to(selcx, param_env, cause.clone(), depth + 1, impl_ty, obligations);
let mut impl_ty = tcx.type_of(impl_def_id).instantiate(tcx, impl_args);
if !selcx.infcx.next_trait_solver() {
impl_ty = normalize_with_depth_to(
selcx,
param_env,
cause.clone(),
depth + 1,
impl_ty,
obligations,
);
}
// Infer the generic parameters of the impl by unifying the
// impl type with the self type of the projection.