1// Copyright 2009 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// Regexp shouldn't use String.prototype.slice() 29var s = new String("foo"); 30assertEquals("f", s.slice(0,1)); 31String.prototype.slice = function() { return "x"; }; 32assertEquals("x", s.slice(0,1)); 33assertEquals(["g"], /g/.exec("gg")); 34 35// Regexp shouldn't use String.prototype.charAt() 36var f1 = new RegExp("f", "i"); 37assertEquals(["F"], f1.exec("F")); 38assertEquals("f", "foo".charAt(0)); 39String.prototype.charAt = function(idx) { return 'g'; }; 40assertEquals("g", "foo".charAt(0)); 41var f2 = new RegExp("[g]", "i"); 42assertEquals(["G"], f2.exec("G")); 43assertTrue(f2.ignoreCase); 44 45// On the other hand test is defined in a semi-coherent way as a call to exec. 46// 15.10.6.3 47// We match other browsers in using the original value of RegExp.prototype.exec. 48// I.e., RegExp.prototype.test shouldn't use the current value of 49// RegExp.prototype.exec. 50RegExp.prototype.exec = function(string) { return 'x'; }; 51assertFalse(/f/.test('x')); 52