Merge 118955

Source/WebCore/bindings/v8/custom/V8ArrayBufferViewCustomScript.js

 /*
  * Copyright (C) 2011 Google 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. AND ITS CONTRIBUTORS ``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 ITS 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.
  */
 
 (function() {
-
-var optimizeSetMethod = function(type)
-{
-    if (typeof type === 'function' &&
-        typeof type.prototype !== 'undefined' && 
-        typeof type.prototype.set === 'function') {
-        type.prototype.set = (function() {
-            var nativeSet = type.prototype.set;
-            var f = function(source, offset)
-            {
-                if (source.constructor === Array) {
-                    var length = source.length;
-                    offset = offset || 0;
-                    if (offset < 0 || offset + length > this.length) {
-                        return nativeSet.call(this, source, offset);
-                    }
-                    for (var i = 0; i < length; i++)
-                        this[i + offset] = source[i];
-                } else
-                    return nativeSet.call(this, source, offset);
-            }
-            f.name = "set";
-            return f;
-        })();
+    return function(source, length, offset) {
+        if (offset == 0) {
+            for (var i = 0; i < length; i++)
+                this[i] = source[i];
+        } else {
+            for (var i = 0; i < length; i++)
+                this[i + offset] = source[i];
+        }
     }
-};
-
-optimizeSetMethod(Float32Array);
-optimizeSetMethod(Float64Array);
-optimizeSetMethod(Int8Array);
-optimizeSetMethod(Int16Array);
-optimizeSetMethod(Int32Array);
-optimizeSetMethod(Uint8Array);
-optimizeSetMethod(Uint8ClampedArray);
-optimizeSetMethod(Uint16Array);
-optimizeSetMethod(Uint32Array);
-
 })();