diff -r 000000000000 -r 4f2f89ce4247 WebCore/bindings/js/JSArrayBufferViewCustom.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/js/JSArrayBufferViewCustom.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,93 @@
+/*
+ * 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 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. 
+ */
+
+#include "config.h"
+
+#if ENABLE(3D_CANVAS)
+
+#include "config.h"
+#include "JSArrayBufferView.h"
+#include "JSInt8Array.h"
+#include "JSUint8Array.h"
+#include "JSInt16Array.h"
+#include "JSUint16Array.h"
+#include "JSInt32Array.h"
+#include "JSUint32Array.h"
+#include "JSFloat32Array.h"
+
+#include "ArrayBufferView.h"
+
+using namespace JSC;
+
+namespace WebCore {
+
+JSC::JSValue toJS(JSC::ExecState* exec, JSDOMGlobalObject* globalObject, ArrayBufferView* object)
+{
+    if (!object)
+        return jsUndefined();
+        
+    if (object) {
+        if (object->isFloatArray())
+            return getDOMObjectWrapper<JSFloat32Array>(exec, globalObject, static_cast<Float32Array*>(object));
+        if (object->isUnsignedByteArray())
+            return getDOMObjectWrapper<JSUint8Array>(exec, globalObject, static_cast<Uint8Array*>(object));
+        if (object->isByteArray())
+            return getDOMObjectWrapper<JSInt8Array>(exec, globalObject, static_cast<Int8Array*>(object));
+        if (object->isIntArray())
+            return getDOMObjectWrapper<JSInt32Array>(exec, globalObject, static_cast<Int32Array*>(object));
+        if (object->isUnsignedIntArray())
+            return getDOMObjectWrapper<JSUint32Array>(exec, globalObject, static_cast<Uint32Array*>(object));
+        if (object->isShortArray())
+            return getDOMObjectWrapper<JSInt16Array>(exec, globalObject, static_cast<Int16Array*>(object));
+        if (object->isUnsignedShortArray())
+            return getDOMObjectWrapper<JSUint16Array>(exec, globalObject, static_cast<Uint16Array*>(object));
+    }
+    return jsUndefined();
+}
+
+JSValue JSArrayBufferView::slice(ExecState* exec)
+{
+    ArrayBufferView* array = reinterpret_cast<ArrayBufferView*>(impl());
+
+    int start, end;
+    switch (exec->argumentCount()) {
+    case 0:
+        start = 0;
+        end = array->length();
+        break;
+    case 1:
+        start = exec->argument(0).toInt32(exec);
+        end = array->length();
+        break;
+    default:
+        start = exec->argument(0).toInt32(exec);
+        end = exec->argument(1).toInt32(exec);
+    }
+    return toJS(exec, globalObject(), array->slice(start, end));
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(3D_CANVAS)