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 32 var READ_ONLY = 1; 33 var DONT_ENUM = 2; 34 var DONT_DELETE = 4; 35 36 function func1(){} 37 function func2(){} 38 39 var object = {__proto__:{}}; 40 %SetProperty(object, "foo", func1, DONT_ENUM | DONT_DELETE); 41 %SetProperty(object, "bar", func1, DONT_ENUM | READ_ONLY); 42 %SetProperty(object, "baz", func1, DONT_DELETE | READ_ONLY); 43 %SetProperty(object.__proto__, "bif", func1, DONT_ENUM | DONT_DELETE | READ_ONLY); 44 object.bif = func2; 45 46 function 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. 56 assertArrayEquals(["baz", "bif"], enumerable(object), "enum0"); 57 assertFalse(delete object.foo, "delete foo"); 58 assertFalse(delete object.baz, "delete baz"); 59 assertEquals(func1, object.foo, "read foo"); 60 assertEquals(func1, object.bar, "read bar"); 61 assertEquals(func1, object.baz, "read baz"); 62 assertEquals(func2, object.bif, "read bif"); 63 64 // Can't assign to READ_ONLY. 65 object.bar = "NO WAY"; 66 assertEquals(func1, object.bar, "read bar 2"); 67 assertArrayEquals(["baz", "bif"], enumerable(object), "enum1"); 68 69 // Assignment to non-readonly. Assignment shouldn't change attributes! 70 object.foo = func2; 71 assertArrayEquals(["baz", "bif"], enumerable(object), "enum2"); 72 assertFalse(delete object.foo, "delete foo 2"); 73 74 // Delete should erase attributes if value set again. 75 assertTrue(delete object.bar, "delete bar"); 76 assertFalse("bar" in object, "has bar"); 77 object.bar = func2; 78 assertTrue("bar" in object, "has bar 2"); 79 assertEquals(func2, object.bar, "read bar 3"); 80 81 assertArrayEquals(["bar", "baz", "bif"], enumerable(object), "enum3"); 82 83 // Unshadowing a prototype property exposes its attributes. 84 assertTrue(delete object.bif, "delete bif"); 85 assertArrayEquals(["bar", "baz"], enumerable(object), "enum4"); 86 assertEquals(func1, object.bif, "read bif 2"); 87 // Can't delete prototype property. 88 assertTrue(delete object.bif, "delete bif 2"); 89 assertArrayEquals(["bar", "baz"], enumerable(object), "enum5"); 90 assertEquals(func1, object.bif, "read bif3"); 91
