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: --nocrankshaft 29 30var functionToCatch; 31var lineNumber; 32 33function 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 51function log() { 52 catchLineNumber(); 53} 54 55function foo() {} 56 57function test1() { 58 log(foo() == foo() 59 ? 'a' 60 : 'b'); 61} 62 63function test2() { 64 var o = { foo: function () {}} 65 log(o.foo() == o.foo() 66 ? 'a' 67 : 'b'); 68} 69 70function test3() { 71 var o = { log: log, foo: function() { } }; 72 o.log(o.foo() == o.foo() 73 ? 'a' 74 : 'b'); 75 76} 77 78function test(f, expectedLineNumber) { 79 functionToCatch = f; 80 f(); 81 82 assertEquals(expectedLineNumber, lineNumber); 83} 84 85test(test1, 58); 86test(test2, 65); 87test(test3, 72); 88 89eval(test1.toString() + "//@ sourceUrl=foo"); 90eval(test2.toString() + "//@ sourceUrl=foo"); 91eval(test3.toString() + "//@ sourceUrl=foo"); 92 93test(test1, 2); 94test(test2, 3); 95test(test3, 3); 96