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 = new Proxy({}, { 32 get(t, key, receiver) { 33 assertSame('x', key); 34 if (proxy_has_x) { return 19 } 35 return 8; 36 } 37 }); 38 39 // Test __lookupGetter__/__lookupSetter__ with proxy. 40 assertSame(undefined, Object.prototype.__lookupGetter__.call(proxy, 'foo')); 41 assertSame(undefined, Object.prototype.__lookupSetter__.call(proxy, 'bar')); 42 assertSame(undefined, Object.prototype.__lookupGetter__.call(proxy, '123')); 43 assertSame(undefined, Object.prototype.__lookupSetter__.call(proxy, '456')); 44 45 // Test __lookupGetter__/__lookupSetter__ with proxy in prototype chain. 46 var object = Object.create(proxy); 47 assertSame(undefined, Object.prototype.__lookupGetter__.call(object, 'foo')); 48 assertSame(undefined, Object.prototype.__lookupSetter__.call(object, 'bar')); 49 assertSame(undefined, Object.prototype.__lookupGetter__.call(object, '123')); 50 assertSame(undefined, Object.prototype.__lookupSetter__.call(object, '456')); 51 52 // Test inline constructors with proxy as prototype. 53 function F() { this.x = 42 } 54 F.prototype = proxy; 55 var instance = new F(); 56 57 proxy_has_x = false; 58 assertSame(42, instance.x); 59 delete instance.x; 60 assertSame(8, instance.x); 61 62 proxy_has_x = true; 63 assertSame(19, instance.x); 64 65 // Test inline constructors with proxy in prototype chain. 66 function G() { this.x = 42; } 67 G.prototype.__proto__ = proxy; 68 instance = new G(); 69 70 proxy_has_x = false; 71 assertSame(42, instance.x); 72 delete instance.x; 73 assertSame(8, instance.x); 74 75 proxy_has_x = true; 76 assertSame(19, instance.x); 77
