From 22f66de8f1ba5ce815973be4e1b60ad202d39fd0 Mon Sep 17 00:00:00 2001
From: Arthur Cohen <arthur.cohen@embecosm.com>
Date: Tue, 26 Nov 2024 16:34:37 +0000
Subject: [PATCH] stacked-contexts: Add peek() method

gcc/rust/ChangeLog:

	* util/rust-stacked-contexts.h: Add new method to see what context we are currently in.
---
 gcc/rust/util/rust-stacked-contexts.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gcc/rust/util/rust-stacked-contexts.h b/gcc/rust/util/rust-stacked-contexts.h
index 86cdf9f88d2a..603db5627e94 100644
--- a/gcc/rust/util/rust-stacked-contexts.h
+++ b/gcc/rust/util/rust-stacked-contexts.h
@@ -71,6 +71,12 @@ template <typename T> class StackedContexts
     return last;
   }
 
+  const T& peek() {
+    rust_assert (!stack.empty());
+
+    return stack.back();
+  }
+
   /**
    * Are we currently inside of a special context?
    */