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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 // Flags: --always-full-compiler |
| 29 |
| 30 var functionToCatch; |
| 31 var lineNumber; |
| 32 |
| 33 function catchLineNumber () { |
| 34 var x = {}; |
| 35 |
| 36 Error.prepareStackTrace = function (error, stackTrace) { |
| 37 stackTrace.some(function (frame) { |
| 38 if (frame.getFunction() == functionToCatch) { |
| 39 lineNumber = frame.getLineNumber(); |
| 40 return true; |
| 41 } |
| 42 return false; |
| 43 }); |
| 44 return lineNumber; |
| 45 }; |
| 46 |
| 47 Error.captureStackTrace(x); |
| 48 return x.stack; |
| 49 } |
| 50 |
| 51 function log() { |
| 52 catchLineNumber(); |
| 53 } |
| 54 |
| 55 function foo() {} |
| 56 |
| 57 function test1() { |
| 58 log(foo() == foo() |
| 59 ? 'a' |
| 60 : 'b'); |
| 61 } |
| 62 |
| 63 function test2() { |
| 64 var o = { foo: function () {}} |
| 65 log(o.foo() == o.foo() |
| 66 ? 'a' |
| 67 : 'b'); |
| 68 } |
| 69 |
| 70 function test3() { |
| 71 var o = { log: log, foo: function() { } }; |
| 72 o.log(o.foo() == o.foo() |
| 73 ? 'a' |
| 74 : 'b'); |
| 75 |
| 76 } |
| 77 |
| 78 function test(f, expectedLineNumber) { |
| 79 functionToCatch = f; |
| 80 f(); |
| 81 |
| 82 assertEquals(expectedLineNumber, lineNumber); |
| 83 } |
| 84 |
| 85 test(test1, 58); |
| 86 test(test2, 65); |
| 87 test(test3, 72); |
| 88 |
| 89 eval(test1.toString() + "//@ sourceUrl=foo"); |
| 90 eval(test2.toString() + "//@ sourceUrl=foo"); |
| 91 eval(test3.toString() + "//@ sourceUrl=foo"); |
| 92 |
| 93 test(test1, 2); |
| 94 test(test2, 3); |
| 95 test(test3, 3); |
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