make unevaluated const substs optional

2021-03-16 00:05:45 +01:00
parent f4b606fd17
commit bfaf13af4e
46 changed files with 234 additions and 188 deletions
--- a/compiler/rustc_privacy/src/lib.rs
+++ b/compiler/rustc_privacy/src/lib.rs
@@ -179,8 +179,8 @@ where
 {
    type BreakTy = V::BreakTy;

-    fn tcx_for_anon_const_substs(&self) -> TyCtxt<'tcx> {
-        self.def_id_visitor.tcx()
+    fn tcx_for_anon_const_substs(&self) -> Option<TyCtxt<'tcx>> {
+        Some(self.def_id_visitor.tcx())
    }

    fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<V::BreakTy> {