1 files changed, 5 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/runtime/Structure.h b/Source/JavaScriptCore/runtime/Structure.h
index ee0b573d9..0b9c92210 100644
--- a/Source/JavaScriptCore/runtime/Structure.h
+++ b/Source/JavaScriptCore/runtime/Structure.h
@@ -322,6 +322,11 @@ namespace JSC {
         {
             return OBJECT_OFFSETOF(Structure, m_typeInfo) + TypeInfo::typeOffset();
         }
+        
+        static ptrdiff_t classInfoOffset()
+        {
+            return OBJECT_OFFSETOF(Structure, m_classInfo);
+        }
 
         static Structure* createStructure(JSGlobalData&);