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diff --git a/Source/JavaScriptCore/runtime/Protect.h b/Source/JavaScriptCore/runtime/Protect.h
new file mode 100644
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+++ b/Source/JavaScriptCore/runtime/Protect.h
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+/*
+ *  Copyright (C) 2004, 2008, 2009 Apple Inc. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Library General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Library General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Library General Public License
+ *  along with this library; see the file COPYING.LIB.  If not, write to
+ *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301, USA.
+ *
+ */
+
+
+#ifndef Protect_h
+#define Protect_h
+
+#include "Heap.h"
+#include "JSValue.h"
+
+namespace JSC {
+
+    inline void gcProtect(JSCell* val) 
+    {
+        Heap::heap(val)->protect(val);
+    }
+
+    inline void gcUnprotect(JSCell* val)
+    {
+        Heap::heap(val)->unprotect(val);
+    }
+
+    inline void gcProtectNullTolerant(JSCell* val) 
+    {
+        if (val) 
+            gcProtect(val);
+    }
+
+    inline void gcUnprotectNullTolerant(JSCell* val) 
+    {
+        if (val) 
+            gcUnprotect(val);
+    }
+    
+    inline void gcProtect(JSValue value)
+    {
+        if (value && value.isCell())
+            gcProtect(value.asCell());
+    }
+
+    inline void gcUnprotect(JSValue value)
+    {
+        if (value && value.isCell())
+            gcUnprotect(value.asCell());
+    }
+
+} // namespace JSC
+
+#endif // Protect_h