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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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53 "constructTrap", | 53 "constructTrap", |
54 ] | 54 ] |
55 | 55 |
56 $Proxy.createFunction = function(handler, callTrap, constructTrap) { | 56 $Proxy.createFunction = function(handler, callTrap, constructTrap) { |
57 handler.callTrap = callTrap | 57 handler.callTrap = callTrap |
58 handler.constructTrap = constructTrap | 58 handler.constructTrap = constructTrap |
59 $Proxy.create(handler) | 59 $Proxy.create(handler) |
60 } | 60 } |
61 | 61 |
62 $Proxy.create = function(handler, proto) { | 62 $Proxy.create = function(handler, proto) { |
| 63 if (!IS_SPEC_OBJECT(handler)) throw TypeError |
63 if (!IS_SPEC_OBJECT(proto)) proto = $Object.prototype | 64 if (!IS_SPEC_OBJECT(proto)) proto = $Object.prototype |
64 return %CreateJSProxy(handler, proto) | 65 return %CreateJSProxy(handler, proto) |
65 } | 66 } |
66 | 67 |
67 | 68 |
68 | 69 |
69 | 70 |
70 //////////////////////////////////////////////////////////////////////////////// | 71 //////////////////////////////////////////////////////////////////////////////// |
71 // Builtins | 72 // Builtins |
72 //////////////////////////////////////////////////////////////////////////////// | 73 //////////////////////////////////////////////////////////////////////////////// |
73 | 74 |
74 function DerivedGetTrap(receiver, name) { | 75 function DerivedGetTrap(receiver, name) { |
75 var desc = this.getPropertyDescriptor(name) | 76 var desc = this.getPropertyDescriptor(name) |
76 if (IS_UNDEFINED(desc)) { return desc; } | 77 if (IS_UNDEFINED(desc)) { return desc } |
77 if ('value' in desc) { | 78 if ('value' in desc) { |
78 return desc.value | 79 return desc.value |
79 } else { | 80 } else { |
80 if (IS_UNDEFINED(desc.get)) { return desc.get; } | 81 if (IS_UNDEFINED(desc.get)) { return desc.get } |
81 return desc.get.call(receiver) // The proposal says so... | 82 // The proposal says: desc.get.call(receiver) |
| 83 return %_CallFunction(receiver, desc.get) |
82 } | 84 } |
83 } | 85 } |
| 86 |
| 87 function DerivedSetTrap(receiver, name, val) { |
| 88 var desc = this.getOwnPropertyDescriptor(name) |
| 89 if (desc) { |
| 90 if ('writable' in desc) { |
| 91 if (desc.writable) { |
| 92 desc.value = val |
| 93 this.defineProperty(name, desc) |
| 94 return true |
| 95 } else { |
| 96 return false |
| 97 } |
| 98 } else { // accessor |
| 99 if (desc.set) { |
| 100 // The proposal says: desc.set.call(receiver, val) |
| 101 %_CallFunction(receiver, val, desc.set) |
| 102 return true |
| 103 } else { |
| 104 return false |
| 105 } |
| 106 } |
| 107 } |
| 108 desc = this.getPropertyDescriptor(name) |
| 109 if (desc) { |
| 110 if ('writable' in desc) { |
| 111 if (desc.writable) { |
| 112 // fall through |
| 113 } else { |
| 114 return false |
| 115 } |
| 116 } else { // accessor |
| 117 if (desc.set) { |
| 118 // The proposal says: desc.set.call(receiver, val) |
| 119 %_CallFunction(receiver, val, desc.set) |
| 120 return true |
| 121 } else { |
| 122 return false |
| 123 } |
| 124 } |
| 125 } |
| 126 this.defineProperty(name, { |
| 127 value: val, |
| 128 writable: true, |
| 129 enumerable: true, |
| 130 configurable: true}); |
| 131 return true; |
| 132 } |
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