return const_error when ty has errors

2022-11-02 14:47:48 +09:00
parent 33b55ac39f
commit b96ad1c096
3 changed files with 78 additions and 0 deletions
--- a/compiler/rustc_hir_analysis/src/astconv/mod.rs
+++ b/compiler/rustc_hir_analysis/src/astconv/mod.rs
@@ -501,6 +501,9 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o {
                    }
                    GenericParamDefKind::Const { has_default } => {
                        let ty = tcx.at(self.span).type_of(param.def_id);
+                        if ty.references_error() {
+                            return tcx.const_error(ty).into();
+                        }
                        if !infer_args && has_default {
                            tcx.bound_const_param_default(param.def_id)
                                .subst(tcx, substs.unwrap())