1 files changed, 5 insertions, 1 deletions
diff --git a/JavaScriptCore/runtime/WeakGCPtr.h b/JavaScriptCore/runtime/WeakGCPtr.h
index 8653721..3ed4645 100644
--- a/JavaScriptCore/runtime/WeakGCPtr.h
+++ b/JavaScriptCore/runtime/WeakGCPtr.h
@@ -44,7 +44,11 @@ public:
         return m_ptr;
     }
     
-    void clear() { m_ptr = 0; }
+    void clear(JSCell* ptr)
+    {
+        if (ptr == m_ptr)
+            m_ptr = 0;
+    }
 
     T& operator*() const { return *get(); }
     T* operator->() const { return get(); }