OLD | NEW |
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 |
(...skipping 1207 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1218 %PreventExtensions(obj); | 1218 %PreventExtensions(obj); |
1219 return obj; | 1219 return obj; |
1220 } | 1220 } |
1221 | 1221 |
1222 | 1222 |
1223 // ES5 section 15.2.3.9. | 1223 // ES5 section 15.2.3.9. |
1224 function ObjectFreeze(obj) { | 1224 function ObjectFreeze(obj) { |
1225 if (!IS_SPEC_OBJECT(obj)) { | 1225 if (!IS_SPEC_OBJECT(obj)) { |
1226 throw MakeTypeError("called_on_non_object", ["Object.freeze"]); | 1226 throw MakeTypeError("called_on_non_object", ["Object.freeze"]); |
1227 } | 1227 } |
1228 if (%IsJSProxy(obj)) { | 1228 var isProxy = %IsJSProxy(obj); |
1229 ProxyFix(obj); | 1229 if (isProxy || %HasNonStrictArgumentsElements(obj)) { |
| 1230 if (isProxy) { |
| 1231 ProxyFix(obj); |
| 1232 } |
| 1233 var names = ObjectGetOwnPropertyNames(obj); |
| 1234 for (var i = 0; i < names.length; i++) { |
| 1235 var name = names[i]; |
| 1236 var desc = GetOwnProperty(obj, name); |
| 1237 if (desc.isWritable() || desc.isConfigurable()) { |
| 1238 if (IsDataDescriptor(desc)) desc.setWritable(false); |
| 1239 desc.setConfigurable(false); |
| 1240 DefineOwnProperty(obj, name, desc, true); |
| 1241 } |
| 1242 } |
| 1243 %PreventExtensions(obj); |
| 1244 } else { |
| 1245 // TODO(adamk): Is it worth going to this fast path if the |
| 1246 // object's properties are already in dictionary mode? |
| 1247 %ObjectFreeze(obj); |
1230 } | 1248 } |
1231 var names = ObjectGetOwnPropertyNames(obj); | |
1232 for (var i = 0; i < names.length; i++) { | |
1233 var name = names[i]; | |
1234 var desc = GetOwnProperty(obj, name); | |
1235 if (desc.isWritable() || desc.isConfigurable()) { | |
1236 if (IsDataDescriptor(desc)) desc.setWritable(false); | |
1237 desc.setConfigurable(false); | |
1238 DefineOwnProperty(obj, name, desc, true); | |
1239 } | |
1240 } | |
1241 %PreventExtensions(obj); | |
1242 return obj; | 1249 return obj; |
1243 } | 1250 } |
1244 | 1251 |
1245 | 1252 |
1246 // ES5 section 15.2.3.10 | 1253 // ES5 section 15.2.3.10 |
1247 function ObjectPreventExtension(obj) { | 1254 function ObjectPreventExtension(obj) { |
1248 if (!IS_SPEC_OBJECT(obj)) { | 1255 if (!IS_SPEC_OBJECT(obj)) { |
1249 throw MakeTypeError("called_on_non_object", ["Object.preventExtension"]); | 1256 throw MakeTypeError("called_on_non_object", ["Object.preventExtension"]); |
1250 } | 1257 } |
1251 if (%IsJSProxy(obj)) { | 1258 if (%IsJSProxy(obj)) { |
(...skipping 542 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1794 %SetCode($Function, NewFunction); | 1801 %SetCode($Function, NewFunction); |
1795 %SetProperty($Function.prototype, "constructor", $Function, DONT_ENUM); | 1802 %SetProperty($Function.prototype, "constructor", $Function, DONT_ENUM); |
1796 | 1803 |
1797 InstallFunctions($Function.prototype, DONT_ENUM, $Array( | 1804 InstallFunctions($Function.prototype, DONT_ENUM, $Array( |
1798 "bind", FunctionBind, | 1805 "bind", FunctionBind, |
1799 "toString", FunctionToString | 1806 "toString", FunctionToString |
1800 )); | 1807 )); |
1801 } | 1808 } |
1802 | 1809 |
1803 SetUpFunction(); | 1810 SetUpFunction(); |
OLD | NEW |