1 // Copyright 2012 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: --harmony-proxies 29 30 var proxy_has_x = false; 31 var proxy = Proxy.create({ getPropertyDescriptor:function(key) { 32 assertSame('x', key); 33 if (proxy_has_x) { 34 return { configurable:true, writable:false, value:19 }; 35 } 36 }}); 37 38 // Test __lookupGetter__/__lookupSetter__ with proxy. 39 assertSame(undefined, Object.prototype.__lookupGetter__.call(proxy, 'foo')); 40 assertSame(undefined, Object.prototype.__lookupSetter__.call(proxy, 'bar')); 41 assertSame(undefined, Object.prototype.__lookupGetter__.call(proxy, '123')); 42 assertSame(undefined, Object.prototype.__lookupSetter__.call(proxy, '456')); 43 44 // Test __lookupGetter__/__lookupSetter__ with proxy in prototype chain. 45 var object = Object.create(proxy); 46 assertSame(undefined, Object.prototype.__lookupGetter__.call(object, 'foo')); 47 assertSame(undefined, Object.prototype.__lookupSetter__.call(object, 'bar')); 48 assertSame(undefined, Object.prototype.__lookupGetter__.call(object, '123')); 49 assertSame(undefined, Object.prototype.__lookupSetter__.call(object, '456')); 50 51 // Test inline constructors with proxy as prototype. 52 function f() { this.x = 23; } 53 f.prototype = proxy; 54 proxy_has_x = false; 55 assertSame(23, new f().x); 56 proxy_has_x = true; 57 assertSame(19, new f().x); 58 59 // Test inline constructors with proxy in prototype chain. 60 function g() { this.x = 42; } 61 g.prototype.__proto__ = proxy; 62 proxy_has_x = false; 63 assertSame(42, new g().x); 64 proxy_has_x = true; 65 assertSame(19, new g().x); 66
