1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/rust/util/rust-stacked-contexts.h b/gcc/rust/util/rust-stacked-contexts.h
index fe0bc8a..b263d75 100644
--- a/gcc/rust/util/rust-stacked-contexts.h
+++ b/gcc/rust/util/rust-stacked-contexts.h
@@ -71,7 +71,14 @@ public:
     return last;
   }
 
-  const T &peek ()
+  const T &peek () const
+  {
+    rust_assert (!stack.empty ());
+
+    return stack.back ();
+  }
+
+  T &peek ()
   {
     rust_assert (!stack.empty ());