JezK
Edit File: regress-funcaller.js
// Copyright 2010 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following // disclaimer in the documentation and/or other materials provided // with the distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // Flags: --allow-natives-syntax // Test function.caller. function A() {} function fun(x) { if (x == 0) return fun.caller; if (x == 1) return gee.caller; return 42; } function gee(x) { return this.f(x); } A.prototype.f = fun; A.prototype.g = gee; var o = new A(); for (var i=0; i<5; i++) { o.g(i); } %OptimizeFunctionOnNextCall(o.g); assertEquals(gee, o.g(0)); assertEquals(null, o.g(1)); // Test when called from another function. function hej(x) { if (x == 0) return o.g(x); if (x == 1) return o.g(x); return o.g(x); } for (var j=0; j<5; j++) { hej(j); } %OptimizeFunctionOnNextCall(hej); assertEquals(gee, hej(0)); assertEquals(hej, hej(1)); // Test when called from eval. function from_eval(x) { if (x == 0) return eval("o.g(x);"); if (x == 1) return eval("o.g(x);"); return o.g(x); } for (var j=0; j<5; j++) { from_eval(j); } %OptimizeFunctionOnNextCall(from_eval); assertEquals(gee, from_eval(0)); assertEquals(from_eval, from_eval(1));