1// Copyright 2008 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 for http://code.google.com/p/v8/issues/detail?id=334 31 32var READ_ONLY = 1; 33var DONT_ENUM = 2; 34var DONT_DELETE = 4; 35 36function func1(){} 37function func2(){} 38 39var object = {__proto__:{}}; 40%AddNamedProperty(object, "foo", func1, DONT_ENUM | DONT_DELETE); 41%AddNamedProperty(object, "bar", func1, DONT_ENUM | READ_ONLY); 42%AddNamedProperty(object, "baz", func1, DONT_DELETE | READ_ONLY); 43%AddNamedProperty(object.__proto__, "bif", func1, DONT_ENUM | DONT_DELETE); 44object.bif = func2; 45 46function enumerable(obj) { 47 var res = []; 48 for (var i in obj) { 49 res.push(i); 50 } 51 res.sort(); 52 return res; 53} 54 55// Sanity check: expected initial state. 56assertArrayEquals(["baz", "bif"], enumerable(object), "enum0"); 57assertFalse(delete object.foo, "delete foo"); 58assertFalse(delete object.baz, "delete baz"); 59assertEquals(func1, object.foo, "read foo"); 60assertEquals(func1, object.bar, "read bar"); 61assertEquals(func1, object.baz, "read baz"); 62assertEquals(func2, object.bif, "read bif"); 63 64// Can't assign to READ_ONLY. 65object.bar = "NO WAY"; 66assertEquals(func1, object.bar, "read bar 2"); 67assertArrayEquals(["baz", "bif"], enumerable(object), "enum1"); 68 69// Assignment to non-readonly. Assignment shouldn't change attributes! 70object.foo = func2; 71assertArrayEquals(["baz", "bif"], enumerable(object), "enum2"); 72assertFalse(delete object.foo, "delete foo 2"); 73 74// Delete should erase attributes if value set again. 75assertTrue(delete object.bar, "delete bar"); 76assertFalse("bar" in object, "has bar"); 77object.bar = func2; 78assertTrue("bar" in object, "has bar 2"); 79assertEquals(func2, object.bar, "read bar 3"); 80 81assertArrayEquals(["bar", "baz", "bif"], enumerable(object), "enum3"); 82 83// Unshadowing a prototype property exposes its attributes. 84assertTrue(delete object.bif, "delete bif"); 85assertArrayEquals(["bar", "baz"], enumerable(object), "enum4"); 86assertEquals(func1, object.bif, "read bif 2"); 87// Can't delete prototype property. 88assertTrue(delete object.bif, "delete bif 2"); 89assertArrayEquals(["bar", "baz"], enumerable(object), "enum5"); 90assertEquals(func1, object.bif, "read bif3"); 91