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diff --git a/Source/JavaScriptCore/runtime/JSNumberCell.h b/Source/JavaScriptCore/runtime/JSNumberCell.h
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+++ b/Source/JavaScriptCore/runtime/JSNumberCell.h
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+/*
+ *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2001 Peter Kelly (pmk@post.com)
+ *  Copyright (C) 2003, 2004, 2005, 2007, 2008 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 JSNumberCell_h
+#define JSNumberCell_h
+
+#include "CallFrame.h"
+#include "JSCell.h"
+#include "JSImmediate.h"
+#include "Collector.h"
+#include "UString.h"
+#include <stddef.h> // for size_t
+
+namespace JSC {
+
+    extern const double NaN;
+    extern const double Inf;
+
+#if USE(JSVALUE64)
+    ALWAYS_INLINE JSValue::JSValue(EncodeAsDoubleTag, double d)
+    {
+        *this = JSImmediate::fromNumberOutsideIntegerRange(d);
+    }
+
+    inline JSValue::JSValue(double d)
+    {
+        JSValue v = JSImmediate::from(d);
+        ASSERT(v);
+        *this = v;
+    }
+
+    inline JSValue::JSValue(int i)
+    {
+        JSValue v = JSImmediate::from(i);
+        ASSERT(v);
+        *this = v;
+    }
+
+    inline JSValue::JSValue(unsigned i)
+    {
+        JSValue v = JSImmediate::from(i);
+        ASSERT(v);
+        *this = v;
+    }
+
+    inline JSValue::JSValue(long i)
+    {
+        JSValue v = JSImmediate::from(i);
+        ASSERT(v);
+        *this = v;
+    }
+
+    inline JSValue::JSValue(unsigned long i)
+    {
+        JSValue v = JSImmediate::from(i);
+        ASSERT(v);
+        *this = v;
+    }
+
+    inline JSValue::JSValue(long long i)
+    {
+        JSValue v = JSImmediate::from(static_cast<double>(i));
+        ASSERT(v);
+        *this = v;
+    }
+
+    inline JSValue::JSValue(unsigned long long i)
+    {
+        JSValue v = JSImmediate::from(static_cast<double>(i));
+        ASSERT(v);
+        *this = v;
+    }
+
+    inline bool JSValue::isDouble() const
+    {
+        return JSImmediate::isDouble(asValue());
+    }
+
+    inline double JSValue::asDouble() const
+    {
+        return JSImmediate::doubleValue(asValue());
+    }
+
+    inline bool JSValue::isNumber() const
+    {
+        return JSImmediate::isNumber(asValue());
+    }
+
+    inline double JSValue::uncheckedGetNumber() const
+    {
+        ASSERT(isNumber());
+        return JSImmediate::toDouble(asValue());
+    }
+
+#endif // USE(JSVALUE64)
+
+#if USE(JSVALUE64)
+
+    inline JSValue::JSValue(char i)
+    {
+        ASSERT(JSImmediate::from(i));
+        *this = JSImmediate::from(i);
+    }
+
+    inline JSValue::JSValue(unsigned char i)
+    {
+        ASSERT(JSImmediate::from(i));
+        *this = JSImmediate::from(i);
+    }
+
+    inline JSValue::JSValue(short i)
+    {
+        ASSERT(JSImmediate::from(i));
+        *this = JSImmediate::from(i);
+    }
+
+    inline JSValue::JSValue(unsigned short i)
+    {
+        ASSERT(JSImmediate::from(i));
+        *this = JSImmediate::from(i);
+    }
+
+    inline JSValue jsNaN()
+    {
+        return jsNumber(NaN);
+    }
+
+    // --- JSValue inlines ----------------------------
+
+    ALWAYS_INLINE JSValue JSValue::toJSNumber(ExecState* exec) const
+    {
+        return isNumber() ? asValue() : jsNumber(this->toNumber(exec));
+    }
+
+    inline bool JSValue::getNumber(double &result) const
+    {
+        if (isInt32())
+            result = asInt32();
+        else if (LIKELY(isDouble()))
+            result = asDouble();
+        else {
+            ASSERT(!isNumber());
+            return false;
+        }
+        return true;
+    }
+
+#endif // USE(JSVALUE64)
+
+} // namespace JSC
+
+#endif // JSNumberCell_h