From f4b606fd1703fb54bf75f064482312a67beb4a7b Mon Sep 17 00:00:00 2001
From: lcnr <rust@lcnr.de>
Date: Sat, 13 Mar 2021 16:05:15 +0100
Subject: require a `tcx` for `TypeVisitor`

---
 compiler/rustc_ty_utils/src/instance.rs | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'compiler/rustc_ty_utils/src')

diff --git a/compiler/rustc_ty_utils/src/instance.rs b/compiler/rustc_ty_utils/src/instance.rs
index 4c03abb38ca..b9fbb5da3e6 100644
--- a/compiler/rustc_ty_utils/src/instance.rs
+++ b/compiler/rustc_ty_utils/src/instance.rs
@@ -54,6 +54,9 @@ impl<'tcx> BoundVarsCollector<'tcx> {
 impl<'tcx> TypeVisitor<'tcx> for BoundVarsCollector<'tcx> {
     type BreakTy = ();
 
+    fn tcx_for_anon_const_substs(&self) -> TyCtxt<'tcx> {
+        bug!("default anon const substs can't be bound vars");
+    }
     fn visit_binder<T: TypeFoldable<'tcx>>(
         &mut self,
         t: &Binder<'tcx, T>,
-- 
cgit 1.4.1-3-g733a5