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| 1 // Copyright 2010 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 // A test for keyed call ICs. |
| 29 |
| 30 var toStringName = 'toString'; |
| 31 var global = this; |
| 32 |
| 33 function globalFunction1() { |
| 34 return 'function1'; |
| 35 } |
| 36 |
| 37 function globalFunction2() { |
| 38 return 'function2'; |
| 39 } |
| 40 |
| 41 assertEquals("[object global]", this[toStringName]()); |
| 42 assertEquals("[object global]", global[toStringName]()); |
| 43 |
| 44 function testGlobals() { |
| 45 assertEquals("[object global]", this[toStringName]()); |
| 46 assertEquals("[object global]", global[toStringName]()); |
| 47 } |
| 48 |
| 49 testGlobals(); |
| 50 |
| 51 |
| 52 function F() {} |
| 53 |
| 54 F.prototype.one = function() {return 'one'; } |
| 55 F.prototype.two = function() {return 'two'; } |
| 56 F.prototype.three = function() {return 'three'; } |
| 57 |
| 58 var keys = |
| 59 ['one', 'one', 'one', 'one', 'two', 'two', 'one', 'three', 'one', 'two']; |
| 60 |
| 61 function testKeyTransitions() { |
| 62 var i, key, result; |
| 63 |
| 64 var f = new F(); |
| 65 |
| 66 // Custom call generators |
| 67 var array = []; |
| 68 for (i = 0; i != 10; i++) { |
| 69 key = (i < 8) ? 'push' : 'pop'; |
| 70 array[key](i); |
| 71 } |
| 72 |
| 73 assertEquals(6, array.length); |
| 74 for (i = 0; i != array.length; i++) { |
| 75 assertEquals(i, array[i]); |
| 76 } |
| 77 |
| 78 for (i = 0; i != 10; i++) { |
| 79 key = (i < 3) ? 'pop' : 'push'; |
| 80 array[key](i); |
| 81 } |
| 82 |
| 83 assertEquals(10, array.length); |
| 84 for (i = 0; i != array.length; i++) { |
| 85 assertEquals(i, array[i]); |
| 86 } |
| 87 |
| 88 var string = 'ABCDEFGHIJ'; |
| 89 for (i = 0; i != 10; i++) { |
| 90 key = ((i < 5) ? 'charAt' : 'charCodeAt'); |
| 91 result = string[key](i); |
| 92 var message = '\'' + string + '\'[\'' + key + '\'](' + i + ')'; |
| 93 if (i < 5) { |
| 94 assertEquals(string.charAt(i), result, message); |
| 95 } else { |
| 96 assertEquals(string.charCodeAt(i), result, message); |
| 97 } |
| 98 } |
| 99 |
| 100 for (i = 0; i != 10; i++) { |
| 101 key = ((i < 5) ? 'charCodeAt' : 'charAt'); |
| 102 result = string[key](i); |
| 103 var message = '\'' + string + '\'[\'' + key + '\'](' + i + ')'; |
| 104 if (i < 5) { |
| 105 assertEquals(string.charCodeAt(i), result, message); |
| 106 } else { |
| 107 assertEquals(string.charAt(i), result, message); |
| 108 } |
| 109 } |
| 110 |
| 111 // Function is a constant property |
| 112 key = 'one'; |
| 113 for (i = 0; i != 10; i++) { |
| 114 assertEquals(key, f[key]()); |
| 115 if (i == 5) { |
| 116 key = 'two'; // the name change should case a miss |
| 117 } |
| 118 } |
| 119 |
| 120 // Function is a fast property |
| 121 f.field = function() { return 'field'; } |
| 122 key = 'field'; |
| 123 for (i = 0; i != 10; i++) { |
| 124 assertEquals(key, f[key]()); |
| 125 if (i == 5) { |
| 126 key = 'two'; // the name change should case a miss |
| 127 } |
| 128 } |
| 129 |
| 130 // Calling on slow case object |
| 131 f.prop = 0; |
| 132 delete f.prop; // force the object to the slow case |
| 133 f.four = function() { return 'four'; } |
| 134 f.five = function() { return 'five'; } |
| 135 |
| 136 key = 'four'; |
| 137 for (i = 0; i != 10; i++) { |
| 138 assertEquals(key, f[key]()); |
| 139 if (i == 5) { |
| 140 key = 'five'; |
| 141 } |
| 142 } |
| 143 |
| 144 // Calling on global object |
| 145 key = 'globalFunction1'; |
| 146 var expect = 'function1'; |
| 147 for (i = 0; i != 10; i++) { |
| 148 assertEquals(expect, global[key]()); |
| 149 if (i == 5) { |
| 150 key = 'globalFunction2'; |
| 151 expect = 'function2'; |
| 152 } |
| 153 } |
| 154 } |
| 155 |
| 156 testKeyTransitions(); |
| 157 |
| 158 function testTypeTransitions() { |
| 159 var f = new F(); |
| 160 var s = ''; |
| 161 var m = 'one'; |
| 162 var i; |
| 163 |
| 164 s = ''; |
| 165 for (i = 0; i != 10; i++) { |
| 166 if (i == 5) { F.prototype.one = function() { return '1'; } } |
| 167 s += f[m](); |
| 168 } |
| 169 assertEquals("oneoneoneoneone11111", s); |
| 170 |
| 171 s = ''; |
| 172 for (i = 0; i != 10; i++) { |
| 173 if (i == 5) { f.__proto__ = { one: function() { return 'I'; } } } |
| 174 s += f[m](); |
| 175 } |
| 176 assertEquals("11111IIIII", s); |
| 177 |
| 178 s = ''; |
| 179 for (i = 0; i != 10; i++) { |
| 180 if (i == 5) { f.one = function() { return 'ONE'; } } |
| 181 s += f[m](); |
| 182 } |
| 183 assertEquals("IIIIIONEONEONEONEONE", s); |
| 184 |
| 185 m = 'toString'; |
| 186 |
| 187 s = ''; |
| 188 var obj = { toString: function() { return '2'; } }; |
| 189 for (i = 0; i != 10; i++) { |
| 190 if (i == 5) { obj = "TWO"; } |
| 191 s += obj[m](); |
| 192 } |
| 193 assertEquals("22222TWOTWOTWOTWOTWO", s); |
| 194 |
| 195 s = ''; |
| 196 obj = { toString: function() { return 'ONE'; } }; |
| 197 m = 'toString'; |
| 198 for (i = 0; i != 10; i++) { |
| 199 if (i == 5) { obj = 1; } |
| 200 s += obj[m](); |
| 201 } |
| 202 assertEquals("ONEONEONEONEONE11111", s); |
| 203 } |
| 204 |
| 205 testTypeTransitions(); |
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