1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_mir_build/src/build/mod.rs b/compiler/rustc_mir_build/src/build/mod.rs
index 46be2aee637..cf8dc597b7b 100644
--- a/compiler/rustc_mir_build/src/build/mod.rs
+++ b/compiler/rustc_mir_build/src/build/mod.rs
@@ -230,6 +230,10 @@ struct Capture<'tcx> {
 }
 
 impl<'a, 'tcx> Builder<'a, 'tcx> {
+    fn typing_env(&self) -> ty::TypingEnv<'tcx> {
+        self.infcx.typing_env(self.param_env)
+    }
+
     fn is_bound_var_in_guard(&self, id: LocalVarId) -> bool {
         self.guard_context.iter().any(|frame| frame.locals.iter().any(|local| local.id == id))
     }