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1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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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408 valueOf: function() { return true; } }; | 408 valueOf: function() { return true; } }; |
409 oddball2.__proto__ = { __proto__: null, | 409 oddball2.__proto__ = { __proto__: null, |
410 toJSON: function () { return oddball3; } } | 410 toJSON: function () { return oddball3; } } |
411 assertEquals('"true"', JSON.stringify(oddball2)); | 411 assertEquals('"true"', JSON.stringify(oddball2)); |
412 | 412 |
413 | 413 |
414 var falseNum = Object("37"); | 414 var falseNum = Object("37"); |
415 falseNum.__proto__ = Number.prototype; | 415 falseNum.__proto__ = Number.prototype; |
416 falseNum.toString = function() { return 42; }; | 416 falseNum.toString = function() { return 42; }; |
417 assertEquals('"42"', JSON.stringify(falseNum)); | 417 assertEquals('"42"', JSON.stringify(falseNum)); |
| 418 |
| 419 // We don't currently allow plain properties called __proto__ in JSON |
| 420 // objects in JSON.parse. Instead we read them as we would JS object |
| 421 // literals. If we change that, this test should change with it. |
| 422 // |
| 423 // Parse a non-object value as __proto__. This must not create a |
| 424 // __proto__ property different from the original, and should not |
| 425 // change the original. |
| 426 var o = JSON.parse('{"__proto__":5}'); |
| 427 assertEquals(Object.prototype, o.__proto__); // __proto__ isn't changed. |
| 428 assertEquals(0, Object.keys(o).length); // __proto__ isn't added as enumerable. |
| 429 |
| 430 |
| 431 |
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