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// Whenever we enter a with-scope, we copy the context. This in itself is fine
29// (contexts may escape), but when leaving a with-scope, we currently also copy
30// the context instead of reverting to the original. This does not work because
31// inner functions may already have been created using the original context. In
32// the failing test case below, the inner function is run in the original context
33// (where x is undefined), but the assignment to x after the with-statement is
34// run in the copied context:
35
36// RegExp caching doesn't set lastIndex correctly.
37// See http://code.google.com/p/chromium/issues/detail?id=52801
38
39var re = /a/g;
40
41var str = "bbbbabbbbabbbb";
42
43// Test
44
45re.test(str);
46assertEquals(5, re.lastIndex);
47
48re.lastIndex = 0;
49re.test(str);
50assertEquals(5, re.lastIndex);  // Fails if caching.
51
52re.lastIndex = 0;
53re.test(str);
54assertEquals(5, re.lastIndex);  // Fails if caching.
55
56// Exec
57
58re = /a/g;
59
60re.exec(str);
61assertEquals(5, re.lastIndex);
62
63re.lastIndex = 0;
64re.exec(str);
65assertEquals(5, re.lastIndex);  // Fails if caching.
66
67re.lastIndex = 0;
68re.exec(str);
69assertEquals(5, re.lastIndex);  // Fails if caching.
70