1// Copyright 2012 the V8 project authors. All rights reserved. 2// Redistribution and use in source and binary forms, with or without 3// modification, are permitted provided that the following conditions are 4// met: 5// 6// * Redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer. 8// * Redistributions in binary form must reproduce the above 9// copyright notice, this list of conditions and the following 10// disclaimer in the documentation and/or other materials provided 11// with the distribution. 12// * Neither the name of Google Inc. nor the names of its 13// contributors may be used to endorse or promote products derived 14// from this software without specific prior written permission. 15// 16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28// Flags: --allow-natives-syntax 29 30// Check that keyed stores make things go dict mode faster than non-keyed 31// stores. 32 33function AddProps(obj) { 34 for (var i = 0; i < 26; i++) { 35 obj["x" + i] = 0; 36 } 37} 38 39 40function AddPropsNonKeyed(obj) { 41 obj.x0 = 0; 42 obj.x1 = 0; 43 obj.x2 = 0; 44 obj.x3 = 0; 45 obj.x4 = 0; 46 obj.x5 = 0; 47 obj.x6 = 0; 48 obj.x7 = 0; 49 obj.x8 = 0; 50 obj.x9 = 0; 51 obj.x10 = 0; 52 obj.x11 = 0; 53 obj.x12 = 0; 54 obj.x13 = 0; 55 obj.x14 = 0; 56 obj.x15 = 0; 57 obj.x16 = 0; 58 obj.x17 = 0; 59 obj.x18 = 0; 60 obj.x19 = 0; 61 obj.x20 = 0; 62 obj.x21 = 0; 63 obj.x22 = 0; 64 obj.x23 = 0; 65 obj.x24 = 0; 66 obj.x25 = 0; 67} 68 69function AddProps3(obj) { 70 obj["x0"] = 0; 71 obj["x1"] = 0; 72 obj["x2"] = 0; 73 obj["x3"] = 0; 74 obj["x4"] = 0; 75 obj["x5"] = 0; 76 obj["x6"] = 0; 77 obj["x7"] = 0; 78 obj["x8"] = 0; 79 obj["x9"] = 0; 80 obj["x10"] = 0; 81 obj["x11"] = 0; 82 obj["x12"] = 0; 83 obj["x13"] = 0; 84 obj["x14"] = 0; 85 obj["x15"] = 0; 86 obj["x16"] = 0; 87 obj["x17"] = 0; 88 obj["x18"] = 0; 89 obj["x19"] = 0; 90 obj["x20"] = 0; 91 obj["x21"] = 0; 92 obj["x22"] = 0; 93 obj["x23"] = 0; 94 obj["x24"] = 0; 95 obj["x25"] = 0; 96} 97 98 99var keyed = {}; 100AddProps(keyed); 101assertFalse(%HasFastProperties(keyed)); 102 103var non_keyed = {}; 104AddPropsNonKeyed(non_keyed); 105assertTrue(%HasFastProperties(non_keyed)); 106 107var obj3 = {}; 108AddProps3(obj3); 109assertTrue(%HasFastProperties(obj3)); 110 111var funny_name = {}; 112funny_name[".foo"] = 0; 113assertTrue(%HasFastProperties(funny_name)); 114