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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 // 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 contex
t |
| 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 |
| 39 var re = /a/g; |
| 40 |
| 41 var str = "bbbbabbbbabbbb"; |
| 42 |
| 43 // Test |
| 44 |
| 45 re.test(str); |
| 46 assertEquals(5, re.lastIndex); |
| 47 |
| 48 re.lastIndex = 0; |
| 49 re.test(str); |
| 50 assertEquals(5, re.lastIndex); // Fails if caching. |
| 51 |
| 52 re.lastIndex = 0; |
| 53 re.test(str); |
| 54 assertEquals(5, re.lastIndex); // Fails if caching. |
| 55 |
| 56 // Exec |
| 57 |
| 58 re = /a/g; |
| 59 |
| 60 re.exec(str); |
| 61 assertEquals(5, re.lastIndex); |
| 62 |
| 63 re.lastIndex = 0; |
| 64 re.exec(str); |
| 65 assertEquals(5, re.lastIndex); // Fails if caching. |
| 66 |
| 67 re.lastIndex = 0; |
| 68 re.exec(str); |
| 69 assertEquals(5, re.lastIndex); // Fails if caching. |
| 70 |
| 71 |
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