OLD | NEW |
1 // Copyright 2008 the V8 project authors. All rights reserved. | 1 // Copyright 2008 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
| 28 // Flags: --allow-natives-syntax |
| 29 |
28 var a = [0,1,2,3]; | 30 var a = [0,1,2,3]; |
29 assertEquals(0, a.length = 0); | 31 assertEquals(0, a.length = 0); |
30 | 32 |
31 assertEquals('undefined', typeof a[0]); | 33 assertEquals('undefined', typeof a[0]); |
32 assertEquals('undefined', typeof a[1]); | 34 assertEquals('undefined', typeof a[1]); |
33 assertEquals('undefined', typeof a[2]); | 35 assertEquals('undefined', typeof a[2]); |
34 assertEquals('undefined', typeof a[3]); | 36 assertEquals('undefined', typeof a[3]); |
35 | 37 |
36 | 38 |
37 var a = [0,1,2,3]; | 39 var a = [0,1,2,3]; |
(...skipping 74 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
112 | 114 |
113 // Check case of compiled stubs. | 115 // Check case of compiled stubs. |
114 var a = []; | 116 var a = []; |
115 for (var i = 0; i < 7; i++) { | 117 for (var i = 0; i < 7; i++) { |
116 assertEquals(3, a.length = 3); | 118 assertEquals(3, a.length = 3); |
117 | 119 |
118 var t = 239; | 120 var t = 239; |
119 t = a.length = 7; | 121 t = a.length = 7; |
120 assertEquals(7, t); | 122 assertEquals(7, t); |
121 } | 123 } |
| 124 |
| 125 function TestLengthAccess() { |
| 126 var TestGetLength = function(a, l, getLength, getKeyedLength) { |
| 127 assertEquals(l, getLength(a)); |
| 128 assertEquals(l, getKeyedLength(a)); |
| 129 } |
| 130 |
| 131 var Test = function(a, l, getLength, getKeyedLength) { |
| 132 // Make the ICs reach the state we want. |
| 133 TestGetLength(a, l, getLength, getKeyedLength); |
| 134 TestGetLength(a, l, getLength, getKeyedLength); |
| 135 TestGetLength(a, l, getLength, getKeyedLength); |
| 136 // Also test crankshaft. |
| 137 %OptimizeFunctionOnNextCall(getLength); |
| 138 %OptimizeFunctionOnNextCall(getKeyedLength); |
| 139 TestGetLength(a, l, getLength, getKeyedLength); |
| 140 } |
| 141 |
| 142 var getLength = function(a) { return a.length; } |
| 143 var getKeyedLength = function(a) { return a['length']; } |
| 144 Test(new Array(4), 4, getLength, getKeyedLength); |
| 145 |
| 146 getLength = function(a) { return a.length; } |
| 147 getKeyedLength = function(a) { return a['length']; } |
| 148 Test([1, 2, 3, 4], 4, getLength, getKeyedLength); |
| 149 |
| 150 getLength = function(a) { return a.length; } |
| 151 getKeyedLength = function(a) { return a['length']; } |
| 152 Test(Object.create(new Array(4)), 4, getLength, getKeyedLength); |
| 153 |
| 154 getLength = function(a) { return a.length; } |
| 155 getKeyedLength = function(a) { return a['length']; } |
| 156 // Set the 'length' of the global object. |
| 157 length = 4; |
| 158 var globalObject = (1,eval)("this"); |
| 159 Test(globalObject, 4, getLength, getKeyedLength); |
| 160 } |
| 161 TestLengthAccess(); |
| 162 |
OLD | NEW |