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: --allow-natives-syntax 29 30 // Test function.caller. 31 function A() {} 32 33 function fun(x) { 34 if (x == 0) return fun.caller; 35 if (x == 1) return gee.caller; 36 return 42; 37 } 38 function gee(x) { return this.f(x); } 39 40 A.prototype.f = fun; 41 A.prototype.g = gee; 42 43 var o = new A(); 44 45 for (var i=0; i<5; i++) { 46 o.g(i); 47 } 48 %OptimizeFunctionOnNextCall(o.g); 49 assertEquals(gee, o.g(0)); 50 assertEquals(null, o.g(1)); 51 52 // Test when called from another function. 53 function hej(x) { 54 if (x == 0) return o.g(x); 55 if (x == 1) return o.g(x); 56 return o.g(x); 57 } 58 59 for (var j=0; j<5; j++) { 60 hej(j); 61 } 62 %OptimizeFunctionOnNextCall(hej); 63 assertEquals(gee, hej(0)); 64 assertEquals(hej, hej(1)); 65 66 // Test when called from eval. 67 function from_eval(x) { 68 if (x == 0) return eval("o.g(x);"); 69 if (x == 1) return eval("o.g(x);"); 70 return o.g(x); 71 } 72 73 for (var j=0; j<5; j++) { 74 from_eval(j); 75 } 76 %OptimizeFunctionOnNextCall(from_eval); 77 assertEquals(gee, from_eval(0)); 78 assertEquals(from_eval, from_eval(1)); 79
