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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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963 } | 963 } |
964 | 964 |
965 | 965 |
966 // For Harmony proxies | 966 // For Harmony proxies |
967 function ToStringArray(obj, trap) { | 967 function ToStringArray(obj, trap) { |
968 if (!IS_SPEC_OBJECT(obj)) { | 968 if (!IS_SPEC_OBJECT(obj)) { |
969 throw MakeTypeError("proxy_non_object_prop_names", [obj, trap]); | 969 throw MakeTypeError("proxy_non_object_prop_names", [obj, trap]); |
970 } | 970 } |
971 var n = ToUint32(obj.length); | 971 var n = ToUint32(obj.length); |
972 var array = new $Array(n); | 972 var array = new $Array(n); |
973 var names = {}; // TODO(rossberg): use sets once they are ready. | 973 var names = { __proto__: null }; // TODO(rossberg): use sets once they are re ady. |
rossberg
2012/11/15 15:39:37
Actually, this case was correct. ;) But cannot ha
| |
974 for (var index = 0; index < n; index++) { | 974 for (var index = 0; index < n; index++) { |
975 var s = ToString(obj[index]); | 975 var s = ToString(obj[index]); |
976 if (%HasLocalProperty(names, s)) { | 976 if (%HasLocalProperty(names, s)) { |
977 throw MakeTypeError("proxy_repeated_prop_name", [obj, trap, s]); | 977 throw MakeTypeError("proxy_repeated_prop_name", [obj, trap, s]); |
978 } | 978 } |
979 array[index] = s; | 979 array[index] = s; |
980 names[s] = 0; | 980 names[s] = 0; |
981 } | 981 } |
982 return array; | 982 return array; |
983 } | 983 } |
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1018 | 1018 |
1019 if (%GetInterceptorInfo(obj) & 2) { | 1019 if (%GetInterceptorInfo(obj) & 2) { |
1020 var namedInterceptorNames = | 1020 var namedInterceptorNames = |
1021 %GetNamedInterceptorPropertyNames(obj); | 1021 %GetNamedInterceptorPropertyNames(obj); |
1022 if (namedInterceptorNames) { | 1022 if (namedInterceptorNames) { |
1023 propertyNames = propertyNames.concat(namedInterceptorNames); | 1023 propertyNames = propertyNames.concat(namedInterceptorNames); |
1024 } | 1024 } |
1025 } | 1025 } |
1026 | 1026 |
1027 // Property names are expected to be unique strings. | 1027 // Property names are expected to be unique strings. |
1028 var propertySet = {}; | 1028 var propertySet = { __proto__: null }; |
1029 var j = 0; | 1029 var j = 0; |
1030 for (var i = 0; i < propertyNames.length; ++i) { | 1030 for (var i = 0; i < propertyNames.length; ++i) { |
1031 var name = ToString(propertyNames[i]); | 1031 var name = ToString(propertyNames[i]); |
1032 // We need to check for the exact property value since for intrinsic | 1032 // We need to check for the exact property value since for intrinsic |
1033 // properties like toString if(propertySet["toString"]) will always | 1033 // properties like toString if(propertySet["toString"]) will always |
1034 // succeed. | 1034 // succeed. |
1035 if (propertySet[name] === true) { | 1035 if (propertySet[name] === true) { |
1036 continue; | 1036 continue; |
1037 } | 1037 } |
1038 propertySet[name] = true; | 1038 propertySet[name] = true; |
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1059 // ES5 section 15.2.3.6. | 1059 // ES5 section 15.2.3.6. |
1060 function ObjectDefineProperty(obj, p, attributes) { | 1060 function ObjectDefineProperty(obj, p, attributes) { |
1061 if (!IS_SPEC_OBJECT(obj)) { | 1061 if (!IS_SPEC_OBJECT(obj)) { |
1062 throw MakeTypeError("called_on_non_object", ["Object.defineProperty"]); | 1062 throw MakeTypeError("called_on_non_object", ["Object.defineProperty"]); |
1063 } | 1063 } |
1064 var name = ToString(p); | 1064 var name = ToString(p); |
1065 if (%IsJSProxy(obj)) { | 1065 if (%IsJSProxy(obj)) { |
1066 // Clone the attributes object for protection. | 1066 // Clone the attributes object for protection. |
1067 // TODO(rossberg): not spec'ed yet, so not sure if this should involve | 1067 // TODO(rossberg): not spec'ed yet, so not sure if this should involve |
1068 // non-own properties as it does (or non-enumerable ones, as it doesn't?). | 1068 // non-own properties as it does (or non-enumerable ones, as it doesn't?). |
1069 var attributesClone = {}; | 1069 var attributesClone = { __proto__: null }; |
1070 for (var a in attributes) { | 1070 for (var a in attributes) { |
1071 attributesClone[a] = attributes[a]; | 1071 attributesClone[a] = attributes[a]; |
1072 } | 1072 } |
1073 DefineProxyProperty(obj, name, attributesClone, true); | 1073 DefineProxyProperty(obj, name, attributesClone, true); |
1074 // The following would implement the spec as in the current proposal, | 1074 // The following would implement the spec as in the current proposal, |
1075 // but after recent comments on es-discuss, is most likely obsolete. | 1075 // but after recent comments on es-discuss, is most likely obsolete. |
1076 /* | 1076 /* |
1077 var defineObj = FromGenericPropertyDescriptor(desc); | 1077 var defineObj = FromGenericPropertyDescriptor(desc); |
1078 var names = ObjectGetOwnPropertyNames(attributes); | 1078 var names = ObjectGetOwnPropertyNames(attributes); |
1079 var standardNames = | 1079 var standardNames = |
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1677 | 1677 |
1678 function SetUpFunction() { | 1678 function SetUpFunction() { |
1679 %CheckIsBootstrapping(); | 1679 %CheckIsBootstrapping(); |
1680 InstallFunctions($Function.prototype, DONT_ENUM, $Array( | 1680 InstallFunctions($Function.prototype, DONT_ENUM, $Array( |
1681 "bind", FunctionBind, | 1681 "bind", FunctionBind, |
1682 "toString", FunctionToString | 1682 "toString", FunctionToString |
1683 )); | 1683 )); |
1684 } | 1684 } |
1685 | 1685 |
1686 SetUpFunction(); | 1686 SetUpFunction(); |
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