Ensure no one constructs AliasTys themselves

2022-12-13 11:07:42 +00:00
parent 4ffe3bdf99
commit a5cd3bde95
50 changed files with 104 additions and 106 deletions
--- a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs
+++ b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs
@@ -155,7 +155,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
        let placeholder_self_ty = placeholder_trait_predicate.self_ty();
        let placeholder_trait_predicate = ty::Binder::dummy(placeholder_trait_predicate);
        let (def_id, substs) = match *placeholder_self_ty.kind() {
-            ty::Alias(_, ty::AliasTy { def_id, substs }) => (def_id, substs),
+            ty::Alias(_, ty::AliasTy { def_id, substs, .. }) => (def_id, substs),
            _ => bug!("projection candidate for unexpected type: {:?}", placeholder_self_ty),
        };