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| 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); | |
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