1 files changed, 12 insertions, 6 deletions
diff --git a/Source/JavaScriptCore/runtime/JSSetIterator.cpp b/Source/JavaScriptCore/runtime/JSSetIterator.cpp
index b1d8a6512..634c2ace1 100644
--- a/Source/JavaScriptCore/runtime/JSSetIterator.cpp
+++ b/Source/JavaScriptCore/runtime/JSSetIterator.cpp
@@ -29,27 +29,26 @@
 #include "JSCJSValueInlines.h"
 #include "JSCellInlines.h"
 #include "JSSet.h"
+#include "MapDataInlines.h"
 #include "SlotVisitorInlines.h"
+#include "StructureInlines.h"
 
 namespace JSC {
 
-const ClassInfo JSSetIterator::s_info = { "Set Iterator", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(JSSetIterator) };
+const ClassInfo JSSetIterator::s_info = { "Set Iterator", &Base::s_info, 0, CREATE_METHOD_TABLE(JSSetIterator) };
 
 void JSSetIterator::finishCreation(VM& vm, JSSet* iteratedObject)
 {
     Base::finishCreation(vm);
-    m_iteratedObjectData.set(vm, this, iteratedObject->mapData());
+    m_set.set(vm, this, iteratedObject);
 }
 
 void JSSetIterator::visitChildren(JSCell* cell, SlotVisitor& visitor)
 {
     JSSetIterator* thisObject = jsCast<JSSetIterator*>(cell);
     ASSERT_GC_OBJECT_INHERITS(thisObject, info());
-    COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
-    ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren());
-        
     Base::visitChildren(thisObject, visitor);
-    visitor.append(&thisObject->m_iteratedObjectData);
+    visitor.append(&thisObject->m_set);
 }
 
 JSValue JSSetIterator::createPair(CallFrame* callFrame, JSValue key, JSValue value)
@@ -61,4 +60,11 @@ JSValue JSSetIterator::createPair(CallFrame* callFrame, JSValue key, JSValue val
     return constructArray(callFrame, 0, globalObject, args);
 }
 
+JSSetIterator* JSSetIterator::clone(ExecState* exec)
+{
+    auto clone = JSSetIterator::create(exec->vm(), exec->callee()->globalObject()->setIteratorStructure(), m_set.get(), m_kind);
+    clone->m_iterator = m_iterator;
+    return clone;
+}
+
 }