1// Copyright 2011 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// Regression test for Chromium issue 70066. Delete should work properly 29// from inside 'with' scopes. 30// http://code.google.com/p/chromium/issues/detail?id=70066 31 32x = 0; 33 34// Delete on a slot from a function's own context. 35function test1() { 36 var value = 1; 37 var status; 38 with ({}) { status = delete value; } 39 return value + ":" + status; 40} 41 42assertEquals("1:false", test1(), "test1"); 43assertEquals(0, x, "test1"); // Global x is undisturbed. 44 45 46// Delete on a slot from an outer context. 47function test2() { 48 function f() { 49 with ({}) { return delete value; } 50 } 51 var value = 2; 52 var status = f(); 53 return value + ":" + status; 54} 55 56assertEquals("2:false", test2(), "test2"); 57assertEquals(0, x, "test2"); // Global x is undisturbed. 58 59 60// Delete on a parameter. 61function test3(value) { 62 var status; 63 with ({}) { status = delete value; } 64 return value + ":" + status; 65} 66 67assertEquals("3:false", test3(3), "test3"); 68assertEquals(0, x, "test3"); // Global x is undisturbed. 69 70 71// Delete on a parameter found in an outer context. 72function test4(value) { 73 function f() { 74 with ({}) { return delete value; } 75 } 76 var status = f(); 77 return value + ":" + status; 78} 79 80assertEquals("4:false", test4(4), "test4"); 81assertEquals(0, x, "test4"); // Global x is undisturbed. 82 83 84// Delete on a parameter, arguments object should be unaffected. 85function test5(value) { 86 var status; 87 with ({}) { status = delete value; } 88 return arguments[0] + ":" + status; 89} 90 91assertEquals("5:false", test5(5), "test5"); 92assertEquals(0, x, "test5"); // Global x is undisturbed. 93 94function test6(value) { 95 function f() { 96 with ({}) { return delete value; } 97 } 98 var status = f(); 99 return arguments[0] + ":" + status; 100} 101 102assertEquals("6:false", test6(6), "test6"); 103assertEquals(0, x, "test6"); // Global x is undisturbed. 104 105 106// Delete on a property found on 'with' object. 107function test7(object) { 108 with (object) { return delete value; } 109} 110 111var o = {value: 7}; 112assertEquals(true, test7(o), "test7"); 113assertEquals(void 0, o.value, "test7"); 114assertEquals(0, x, "test7"); // Global x is undisturbed. 115 116 117// Delete on a global property. 118function test8() { 119 with ({}) { return delete x; } 120} 121 122assertEquals(true, test8(), "test8"); 123assertThrows("x"); // Global x should be deleted. 124 125 126// Delete on a property that is not found anywhere. 127function test9() { 128 with ({}) { return delete x; } 129} 130 131assertThrows("x"); // Make sure it's not there. 132assertEquals(true, test9(), "test9"); 133 134 135// Delete on a DONT_DELETE property of the global object. 136var y = 10; 137function test10() { 138 with ({}) { return delete y; } 139} 140 141assertEquals(false, test10(), "test10"); 142assertEquals(10, y, "test10"); 143