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Issue 2681323002: [regexp] Update lastIndex semantics in RegExpBuiltinExec (Closed)
Patch Set: Update test262.status Created 3 years, 10 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 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
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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 function testSideEffects(subject, re) { 28 function testSideEffects(subject, re) {
29 var counter = 0; 29 var counter = 0;
30 var expected_counter = 0;
31 const accesses_lastindex = (re.global || re.sticky);
32 var side_effect_object = { valueOf: function() { return counter++; } }; 30 var side_effect_object = { valueOf: function() { return counter++; } };
33 re.lastIndex = side_effect_object; 31 re.lastIndex = side_effect_object;
34 re.exec(subject); 32 re.exec(subject);
35 33
36 if (accesses_lastindex) expected_counter++; 34 assertEquals(1, counter);
37 assertEquals(expected_counter, counter);
38 35
39 re.lastIndex = side_effect_object; 36 re.lastIndex = side_effect_object;
40 re.test(subject); 37 re.test(subject);
41 38
42 if (accesses_lastindex) expected_counter++; 39 assertEquals(2, counter);
43 assertEquals(expected_counter, counter);
44 } 40 }
45 41
46 testSideEffects("zzzz", /a/); 42 testSideEffects("zzzz", /a/);
47 testSideEffects("zzzz", /a/g); 43 testSideEffects("zzzz", /a/g);
48 testSideEffects("xaxa", /a/); 44 testSideEffects("xaxa", /a/);
49 testSideEffects("xaxa", /a/g); 45 testSideEffects("xaxa", /a/g);
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