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 // Test function.caller. 29 function A() {} 30 31 function fun(x) { 32 if (x == 0) return fun.caller; 33 if (x == 1) return gee.caller; 34 return 42; 35 } 36 function gee(x) { return this.f(x); } 37 38 A.prototype.f = fun; 39 A.prototype.g = gee; 40 41 var o = new A(); 42 43 for (var i=0; i<5000000; i++) { 44 o.g(i); 45 } 46 assertEquals(gee, o.g(0)); 47 assertEquals(null, o.g(1)); 48 49 // Test when called from another function. 50 function hej(x) { 51 if (x == 0) return o.g(x); 52 if (x == 1) return o.g(x); 53 return o.g(x); 54 } 55 56 for (var j=0; j<5000000; j++) { 57 hej(j); 58 } 59 assertEquals(gee, hej(0)); 60 assertEquals(hej, hej(1)); 61 62 // Test when called from eval. 63 function from_eval(x) { 64 if (x == 0) return eval("o.g(x);"); 65 if (x == 1) return eval("o.g(x);"); 66 return o.g(x); 67 } 68 69 for (var j=0; j<5000000; j++) { 70 from_eval(j); 71 } 72 assertEquals(gee, from_eval(0)); 73 assertEquals(from_eval, from_eval(1)); 74
