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Issue 10539164: Text run together in JSON docs (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 8 years, 6 months ago
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1 // Copyright (c) 2011, 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('json'); 5 #library('json');
6 #import('dart:coreimpl'); 6 #import('dart:coreimpl');
7 7
8 // TODO(jmesserly): this needs cleanup 8 // TODO(jmesserly): this needs cleanup
9 // Ideally JS objects could be treated as Dart Maps directly, and then we can 9 // Ideally JS objects could be treated as Dart Maps directly, and then we can
10 // really use native JSON.parse and JSON.stringify. 10 // really use native JSON.parse and JSON.stringify.
11 11
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32 return null; 32 return null;
33 '''; 33 ''';
34 34
35 /** 35 /**
36 * Dart interface to JavaScript objects and JSON. 36 * Dart interface to JavaScript objects and JSON.
37 */ 37 */
38 class JSON { 38 class JSON {
39 /** 39 /**
40 * Takes a string in JSON notation and returns the value it 40 * Takes a string in JSON notation and returns the value it
41 * represents. The resulting value is one of the following: 41 * represents. The resulting value is one of the following:
42 * null 42 * * null
43 * a bool 43 * * a bool
44 * a double 44 * * a double
45 * a String 45 * * a String
46 * an Array of values (recursively) 46 * * an Array of values (recursively)
47 * a Map from property names to values (recursively) 47 * * a Map from property names to values (recursively)
48 */ 48 */
49 static Object parse(String str) { 49 static Object parse(String str) {
50 return _JSON.parse(str, (_, obj) { 50 return _JSON.parse(str, (_, obj) {
51 final keys = _jsKeys(obj); 51 final keys = _jsKeys(obj);
52 if (keys == null) return obj; 52 if (keys == null) return obj;
53 53
54 // Note: only need to shallow convert here--JSON.parse handles the rest. 54 // Note: only need to shallow convert here--JSON.parse handles the rest.
55 final map = {}; 55 final map = {};
56 for (String key in keys) { 56 for (String key in keys) {
57 map[key] = _getValue(obj, key); 57 map[key] = _getValue(obj, key);
58 } 58 }
59 return map; 59 return map;
60 }); 60 });
61 } 61 }
62 62
63 /** 63 /**
64 * Takes a value and returns a string in JSON notation 64 * Takes a value and returns a string in JSON notation
65 * representing its value, or returns null if the value is not representable 65 * representing its value, or returns null if the value is not representable
66 * in JSON. A representable value is one of the following: 66 * in JSON. A representable value is one of the following:
67 * null 67 * * null
68 * a bool 68 * * a bool
69 * a double 69 * * a double
70 * a String 70 * * a String
71 * an Array of values (recursively) 71 * * an Array of values (recursively)
72 * a Map from property names to values (recursively) 72 * * a Map from property names to values (recursively)
73 */ 73 */
74 // TODO(jmesserly): handle any List subtype? Right now it's converted as 74 // TODO(jmesserly): handle any List subtype? Right now it's converted as
75 // something like: 75 // something like:
76 // {"0":1,"1":2} 76 // {"0":1,"1":2}
77 static String stringify(Object value) { 77 static String stringify(Object value) {
78 return _JSON.stringify(value, (_, obj) { 78 return _JSON.stringify(value, (_, obj) {
79 if (_directToJson(obj)) return obj; 79 if (_directToJson(obj)) return obj;
80 if (obj is Map<String, Dynamic>) { 80 if (obj is Map<String, Dynamic>) {
81 Map<String, Dynamic> map = obj; 81 Map<String, Dynamic> map = obj;
82 obj = new Object(); 82 obj = new Object();
83 map.forEach((k, v) => _setValue(obj, k, v)); 83 map.forEach((k, v) => _setValue(obj, k, v));
84 return obj; 84 return obj;
85 } 85 }
86 throw new IllegalArgumentException('cannot convert "$value" to JSON'); 86 throw new IllegalArgumentException('cannot convert "$value" to JSON');
87 }); 87 });
88 } 88 }
89 } 89 }
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