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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 // JSON parsing and serialization. | 5 // JSON parsing and serialization. |
6 | 6 |
7 /** | 7 /** |
8 * Error thrown by JSON serialization if an object cannot be serialized. | 8 * Error thrown by JSON serialization if an object cannot be serialized. |
9 * | 9 * |
10 * The [unsupportedObject] field holds that object that failed to be serialized. | 10 * The [unsupportedObject] field holds that object that failed to be serialized. |
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40 * JSON values. | 40 * JSON values. |
41 * | 41 * |
42 * The optional [revivier] function, if provided, is called once for each | 42 * The optional [revivier] function, if provided, is called once for each |
43 * object or list property parsed. The arguments are the property name | 43 * object or list property parsed. The arguments are the property name |
44 * ([String]) or list index ([int]), and the value is the parsed value. | 44 * ([String]) or list index ([int]), and the value is the parsed value. |
45 * The return value of the revivier will be used as the value of that property | 45 * The return value of the revivier will be used as the value of that property |
46 * instead the parsed value. | 46 * instead the parsed value. |
47 * | 47 * |
48 * Throws [FormatException] if the input is not valid JSON text. | 48 * Throws [FormatException] if the input is not valid JSON text. |
49 */ | 49 */ |
50 parse(String json, [reviver(var key, var value)]) { | 50 external parse(String json, [reviver(var key, var value)]); |
| 51 |
| 52 _parse(String json, reviver(var key, var value)) { |
51 BuildJsonListener listener; | 53 BuildJsonListener listener; |
52 if (reviver == null) { | 54 if (reviver == null) { |
53 listener = new BuildJsonListener(); | 55 listener = new BuildJsonListener(); |
54 } else { | 56 } else { |
55 listener = new ReviverJsonListener(reviver); | 57 listener = new ReviverJsonListener(reviver); |
56 } | 58 } |
57 new JsonParser(json, listener).parse(); | 59 new JsonParser(json, listener).parse(); |
58 return listener.result; | 60 return listener.result; |
59 } | 61 } |
60 | 62 |
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793 first = false; | 795 first = false; |
794 }); | 796 }); |
795 sb.add('}'); | 797 sb.add('}'); |
796 seen.removeLast(); | 798 seen.removeLast(); |
797 return true; | 799 return true; |
798 } else { | 800 } else { |
799 return false; | 801 return false; |
800 } | 802 } |
801 } | 803 } |
802 } | 804 } |
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