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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 library dart.json; | 5 library dart.json; |
6 | 6 |
7 // JSON parsing and serialization. | 7 // JSON parsing and serialization. |
8 | 8 |
9 /** | 9 /** |
10 * Error thrown by JSON serialization if an object cannot be serialized. | 10 * Error thrown by JSON serialization if an object cannot be serialized. |
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28 if (cause != null) { | 28 if (cause != null) { |
29 return "Calling toJson method on object failed."; | 29 return "Calling toJson method on object failed."; |
30 } else { | 30 } else { |
31 return "Object toJson method returns non-serializable value."; | 31 return "Object toJson method returns non-serializable value."; |
32 } | 32 } |
33 } | 33 } |
34 } | 34 } |
35 | 35 |
36 | 36 |
37 /** | 37 /** |
38 * Parses [json] and build the corresponding parsed JSON value. | 38 * Parses [json] and builds the corresponding parsed JSON value. |
39 * | 39 * |
40 * Parsed JSON values are of the types [num], [String], [bool], [Null], | 40 * Parsed JSON values are of the types [num], [String], [bool], [Null], |
41 * [List]s of parsed JSON values or [Map]s from [String] to parsed | 41 * [List]s of parsed JSON values or [Map]s from [String] to parsed |
42 * JSON values. | 42 * JSON values. |
43 * | 43 * |
44 * The optional [revivier] function, if provided, is called once for each | 44 * The optional [reviver] function, if provided, is called once for each object |
45 * object or list property parsed. The arguments are the property name | 45 * or list property parsed. The arguments are the property name ([String]) or |
46 * ([String]) or list index ([int]), and the value is the parsed value. | 46 * list index ([int]), and the value is the parsed value. The return value of |
47 * The return value of the revivier will be used as the value of that property | 47 * the reviver will be used as the value of that property instead of the parsed |
48 * instead the parsed value. | 48 * value. The top level value is passed to the reviver with the empty string as |
49 * a key. | |
49 * | 50 * |
50 * Throws [FormatException] if the input is not valid JSON text. | 51 * Throws [FormatException] if the input is not valid JSON text. |
51 */ | 52 */ |
52 parse(String json, [reviver(var key, var value)]) { | 53 external parse(String json, [reviver(var key, var value)]); |
54 | |
55 _parse(String json, [reviver(var key, var value)]) { | |
kasperl
2013/02/06 07:07:11
If this code is only used by the VM, it shouldn't
sra1
2013/02/06 17:22:39
The code can still be used by someone who needs th
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53 BuildJsonListener listener; | 56 BuildJsonListener listener; |
54 if (reviver == null) { | 57 if (reviver == null) { |
55 listener = new BuildJsonListener(); | 58 listener = new BuildJsonListener(); |
56 } else { | 59 } else { |
57 listener = new ReviverJsonListener(reviver); | 60 listener = new ReviverJsonListener(reviver); |
58 } | 61 } |
59 new JsonParser(json, listener).parse(); | 62 new JsonParser(json, listener).parse(); |
60 return listener.result; | 63 return listener.result; |
61 } | 64 } |
62 | 65 |
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795 first = false; | 798 first = false; |
796 }); | 799 }); |
797 sb.add('}'); | 800 sb.add('}'); |
798 seen.removeLast(); | 801 seen.removeLast(); |
799 return true; | 802 return true; |
800 } else { | 803 } else { |
801 return false; | 804 return false; |
802 } | 805 } |
803 } | 806 } |
804 } | 807 } |
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