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Edit File: megamorphic-callbacks.js
// Copyright 2008 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * 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. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT // OWNER 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. function load(o) { return o.x; }; function store(o) { o.y = 42; }; function call(o) { return o.f(); }; // Create a slow-case object (with hashed properties). var o = { x: 42, f: function() { }, z: 100 }; delete o.z; // Initialize IC stubs. load(o); store(o); call(o); // Create a new slow-case object (with hashed properties) and add // setter and getter properties to the object. var o = { z: 100 }; delete o.z; o.__defineGetter__("x", function() { return 100; }); o.__defineSetter__("y", function(value) { this.y_mirror = value; }); o.__defineGetter__("f", function() { return function() { return 300; }}); // Perform the load checks. assertEquals(100, o.x, "normal load"); assertEquals(100, load(o), "ic load"); // Perform the store checks. o.y = 200; assertEquals(200, o.y_mirror, "normal store"); store(o); assertEquals(42, o.y_mirror, "ic store"); // Perform the call checks. assertEquals(300, o.f(), "normal call"); assertEquals(300, call(o), "ic call");