Long live Qt!

1 files changed, 111 insertions, 0 deletions

diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/JSByteArray.h b/src/3rdparty/webkit/JavaScriptCore/runtime/JSByteArray.h
new file mode 100644
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--- /dev/null
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/JSByteArray.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2009 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 JSByteArray_h
+#define JSByteArray_h
+
+#include "ByteArray.h"
+#include "JSObject.h"
+
+namespace JSC {
+
+    class JSByteArray : public JSObject {
+        friend class Interpreter;
+    public:
+        bool canAccessIndex(unsigned i) { return i < m_storage->length(); }
+        JSValuePtr getIndex(unsigned i)
+        {
+            ASSERT(canAccessIndex(i));
+            return JSImmediate::from(m_storage->data()[i]);
+        }
+
+        void setIndex(unsigned i, int value)
+        {
+            ASSERT(canAccessIndex(i));
+            if (value & ~0xFF) {
+                if (value < 0)
+                    value = 0;
+                else
+                    value = 255;
+            }
+            m_storage->data()[i] = static_cast<unsigned char>(value);
+        }
+        
+        void setIndex(unsigned i, double value)
+        {
+            ASSERT(canAccessIndex(i));
+            if (!(value > 0)) // Clamp NaN to 0
+                value = 0;
+            else if (value > 255)
+                value = 255;
+            m_storage->data()[i] = static_cast<unsigned char>(value + 0.5);
+        }
+        
+        void setIndex(ExecState* exec, unsigned i, JSValuePtr value)
+        {
+            double byteValue = value->toNumber(exec);
+            if (exec->hadException())
+                return;
+            if (canAccessIndex(i))
+                setIndex(i, byteValue);
+        }
+
+        JSByteArray(ExecState* exec, PassRefPtr<Structure>, ByteArray* storage, const JSC::ClassInfo* = &s_defaultInfo);
+        static PassRefPtr<Structure> createStructure(JSValuePtr prototype);
+        
+        virtual bool getOwnPropertySlot(JSC::ExecState*, const JSC::Identifier& propertyName, JSC::PropertySlot&);
+        virtual bool getOwnPropertySlot(JSC::ExecState*, unsigned propertyName, JSC::PropertySlot&);
+        virtual void put(JSC::ExecState*, const JSC::Identifier& propertyName, JSC::JSValuePtr, JSC::PutPropertySlot&);
+        virtual void put(JSC::ExecState*, unsigned propertyName, JSC::JSValuePtr);
+
+        virtual void getPropertyNames(JSC::ExecState*, JSC::PropertyNameArray&);
+
+        virtual const ClassInfo* classInfo() const { return m_classInfo; }
+        static const ClassInfo s_defaultInfo;
+        
+        size_t length() const { return m_storage->length(); }
+
+        ByteArray* storage() const { return m_storage.get(); }
+
+    private:
+        enum VPtrStealingHackType { VPtrStealingHack };
+        JSByteArray(VPtrStealingHackType) 
+            : JSObject(createStructure(jsNull()))
+            , m_classInfo(0)
+        {
+        }
+
+        RefPtr<ByteArray> m_storage;
+        const ClassInfo* m_classInfo;
+    };
+    
+    JSByteArray* asByteArray(JSValuePtr value);
+    inline JSByteArray* asByteArray(JSValuePtr value)
+    {
+        return static_cast<JSByteArray*>(asCell(value));
+    }
+}
+
+#endif