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+/*
+ * Copyright (C) 2012 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 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 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 JITThunks_h
+#define JITThunks_h
+
+#include <wtf/Platform.h>
+
+#if ENABLE(JIT)
+
+#include "CallData.h"
+#include "Intrinsic.h"
+#include "LowLevelInterpreter.h"
+#include "MacroAssemblerCodeRef.h"
+#include "ThunkGenerator.h"
+#include "Weak.h"
+#include "WeakInlines.h"
+#include <wtf/HashMap.h>
+#include <wtf/OwnPtr.h>
+#include <wtf/RefPtr.h>
+
+namespace JSC {
+
+class VM;
+class NativeExecutable;
+
+class JITThunks {
+public:
+    JITThunks();
+    ~JITThunks();
+
+    MacroAssemblerCodePtr ctiNativeCall(VM*);
+    MacroAssemblerCodePtr ctiNativeConstruct(VM*);
+
+    MacroAssemblerCodeRef ctiStub(VM*, ThunkGenerator);
+
+    NativeExecutable* hostFunctionStub(VM*, NativeFunction, NativeFunction constructor);
+    NativeExecutable* hostFunctionStub(VM*, NativeFunction, ThunkGenerator, Intrinsic);
+
+    void clearHostFunctionStubs();
+
+private:
+    typedef HashMap<ThunkGenerator, MacroAssemblerCodeRef> CTIStubMap;
+    CTIStubMap m_ctiStubMap;
+    typedef HashMap<std::pair<NativeFunction, NativeFunction>, Weak<NativeExecutable> > HostFunctionStubMap;
+    OwnPtr<HostFunctionStubMap> m_hostFunctionStubMap;
+};
+
+} // namespace JSC
+
+#endif // ENABLE(JIT)
+
+#endif // JITThunks_h
+