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1 // Copyright 2009 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 // Regexp shouldn't use String.prototype.slice() | |
29 var s = new String("foo"); | |
30 assertEquals("f", s.slice(0,1)); | |
31 String.prototype.slice = function() { return "x"; } | |
32 assertEquals("x", s.slice(0,1)); | |
33 assertEquals("g", /g/.exec("gg")); | |
34 | |
35 // Regexp shouldn't use String.prototype.charAt() | |
36 var f1 = new RegExp("f", "i"); | |
37 assertEquals("F", f1.exec("F")); | |
38 assertEquals("f", "foo".charAt(0)); | |
39 String.prototype.charAt = function(idx) { return 'g'; }; | |
40 assertEquals("g", "foo".charAt(0)); | |
41 var f2 = new RegExp("[g]", "i"); | |
42 assertEquals("G", f2.exec("G")); | |
43 assertTrue(f2.ignoreCase); | |
44 | |
45 // On the other hand test is defined in a semi-coherent way as a call to exec. | |
46 // 15.10.6.3 | |
47 // We match other browsers in using the original value of RegExp.prototype.exec. | |
48 // I.e., RegExp.prototype.test shouldn't use the current value of | |
49 // RegExp.prototype.exec. | |
50 RegExp.prototype.exec = function(string) { return 'x'; } | |
51 assertFalse(/f/.test('x')); | |
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