1 files changed, 21 insertions, 14 deletions

diff --git a/Source/JavaScriptCore/runtime/JSSetIterator.h b/Source/JavaScriptCore/runtime/JSSetIterator.h
index edf3bfbf9..b9121de75 100644
--- a/Source/JavaScriptCore/runtime/JSSetIterator.h
+++ b/Source/JavaScriptCore/runtime/JSSetIterator.h
@@ -26,7 +26,7 @@
 #ifndef JSSetIterator_h
 #define JSSetIterator_h
 
-#include "JSDestructibleObject.h"
+#include "JSObject.h"
 #include "JSSet.h"
 
 #include "MapData.h"
@@ -38,9 +38,9 @@ enum SetIterationKind : uint32_t {
     SetIterateKeyValue,
 };
 
-class JSSetIterator : public JSDestructibleObject {
+class JSSetIterator : public JSNonFinalObject {
 public:
-    typedef JSDestructibleObject Base;
+    typedef JSNonFinalObject Base;
 
     DECLARE_EXPORT_INFO;
 
@@ -58,13 +58,13 @@ public:
 
     bool next(CallFrame* callFrame, JSValue& value)
     {
-        if (!m_iterator.ensureSlot())
+        WTF::KeyValuePair<JSValue, JSValue> pair;
+        if (!m_iterator.next(pair))
             return false;
         if (m_kind == SetIterateValue || m_kind == SetIterateKey)
-            value = m_iterator.key();
+            value = pair.key;
         else
-            value = createPair(callFrame, m_iterator.key(), m_iterator.key());
-        ++m_iterator;
+            value = createPair(callFrame, pair.key, pair.key);
         return true;
     }
 
@@ -73,25 +73,32 @@ public:
         m_iterator.finish();
     }
 
-private:
+    SetIterationKind kind() const { return m_kind; }
+    JSValue iteratedValue() const { return m_set.get(); }
+    JSSetIterator* clone(ExecState*);
 
-    static const unsigned StructureFlags = Base::StructureFlags | OverridesVisitChildren;
+    JSSet::SetData::IteratorData* iteratorData()
+    {
+        return &m_iterator;
+    }
 
+private:
     JSSetIterator(VM& vm, Structure* structure, JSSet* iteratedObject, SetIterationKind kind)
         : Base(vm, structure)
-        , m_iterator(iteratedObject->mapData()->begin())
+        , m_iterator(iteratedObject->m_setData.createIteratorData(this))
         , m_kind(kind)
     {
     }
 
-    void finishCreation(VM&, JSSet*);
-    JSValue createPair(CallFrame*, JSValue, JSValue);
+    JS_EXPORT_PRIVATE void finishCreation(VM&, JSSet*);
+    JS_EXPORT_PRIVATE JSValue createPair(CallFrame*, JSValue, JSValue);
     static void visitChildren(JSCell*, SlotVisitor&);
 
-    WriteBarrier<MapData> m_iteratedObjectData;
-    MapData::const_iterator m_iterator;
+    WriteBarrier<JSSet> m_set;
+    JSSet::SetData::IteratorData m_iterator;
     SetIterationKind m_kind;
 };
+STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(JSSetIterator);
 
 }