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diff --git a/Source/JavaScriptCore/API/JSCallbackFunction.h b/Source/JavaScriptCore/API/JSCallbackFunction.h
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+++ b/Source/JavaScriptCore/API/JSCallbackFunction.h
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+/*
+ * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef JSCallbackFunction_h
+#define JSCallbackFunction_h
+
+#include "InternalFunction.h"
+#include "JSObjectRef.h"
+
+namespace JSC {
+
+class JSCallbackFunction : public InternalFunction {
+protected:
+    JSCallbackFunction(JSGlobalObject*, JSObjectCallAsFunctionCallback);
+    void finishCreation(JSGlobalData&, const Identifier& name);
+
+public:
+    typedef InternalFunction Base;
+
+    static JSCallbackFunction* create(ExecState* exec, JSGlobalObject* globalObject, JSObjectCallAsFunctionCallback callback, const Identifier& name)
+    {
+        JSCallbackFunction* function = new (NotNull, allocateCell<JSCallbackFunction>(*exec->heap())) JSCallbackFunction(globalObject, callback);
+        function->finishCreation(exec->globalData(), name);
+        return function;
+    }
+
+    static const ClassInfo s_info;
+    
+    // InternalFunction mish-mashes constructor and function behavior -- we should 
+    // refactor the code so this override isn't necessary
+    static Structure* createStructure(JSGlobalData& globalData, JSGlobalObject* globalObject, JSValue proto) 
+    { 
+        return Structure::create(globalData, globalObject, proto, TypeInfo(ObjectType, StructureFlags), &s_info); 
+    }
+
+    static JSValueRef toStringCallback(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception);
+    static JSValueRef valueOfCallback(JSContextRef ctx, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception);
+
+private:
+    static CallType getCallData(JSCell*, CallData&);
+
+    static EncodedJSValue JSC_HOST_CALL call(ExecState*);
+
+    JSObjectCallAsFunctionCallback m_callback;
+};
+
+} // namespace JSC
+
+#endif // JSCallbackFunction_h