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 33 function AddProps(obj) { 34 for (var i = 0; i < 26; i++) { 35 obj["x" + i] = 0; 36 } 37 } 38 39 40 function 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 69 function 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 99 var keyed = {}; 100 AddProps(keyed); 101 assertFalse(%HasFastProperties(keyed)); 102 103 var non_keyed = {}; 104 AddPropsNonKeyed(non_keyed); 105 assertTrue(%HasFastProperties(non_keyed)); 106 107 var obj3 = {}; 108 AddProps3(obj3); 109 assertTrue(%HasFastProperties(obj3)); 110 111 var bad_name = {}; 112 bad_name[".foo"] = 0; 113 assertFalse(%HasFastProperties(bad_name)); 114
