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Side by Side Diff: utils/pub/yaml/yaml_map.dart

Issue 11267018: Make getKeys, getValues getters (keys, values). (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Update status files with co19 issue number. Created 8 years, 1 month ago
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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 /** 5 /**
6 * This class wraps behaves almost identically to the normal Dart Map 6 * This class wraps behaves almost identically to the normal Dart Map
7 * implementation, with the following differences: 7 * implementation, with the following differences:
8 * 8 *
9 * * It allows null, NaN, boolean, list, and map keys. 9 * * It allows null, NaN, boolean, list, and map keys.
10 * * It defines `==` structurally. That is, `yamlMap1 == yamlMap2` if they have 10 * * It defines `==` structurally. That is, `yamlMap1 == yamlMap2` if they have
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22 22
23 bool containsValue(value) => _map.containsValue(value); 23 bool containsValue(value) => _map.containsValue(value);
24 bool containsKey(key) => _map.containsKey(_wrapKey(key)); 24 bool containsKey(key) => _map.containsKey(_wrapKey(key));
25 operator [](key) => _map[_wrapKey(key)]; 25 operator [](key) => _map[_wrapKey(key)];
26 operator []=(key, value) { _map[_wrapKey(key)] = value; } 26 operator []=(key, value) { _map[_wrapKey(key)] = value; }
27 putIfAbsent(key, ifAbsent()) => _map.putIfAbsent(_wrapKey(key), ifAbsent); 27 putIfAbsent(key, ifAbsent()) => _map.putIfAbsent(_wrapKey(key), ifAbsent);
28 remove(key) => _map.remove(_wrapKey(key)); 28 remove(key) => _map.remove(_wrapKey(key));
29 void clear() => _map.clear(); 29 void clear() => _map.clear();
30 void forEach(void f(key, value)) => 30 void forEach(void f(key, value)) =>
31 _map.forEach((k, v) => f(_unwrapKey(k), v)); 31 _map.forEach((k, v) => f(_unwrapKey(k), v));
32 Collection getKeys() => _map.getKeys().map(_unwrapKey); 32 Collection get keys => _map.keys.map(_unwrapKey);
33 Collection getValues() => _map.getValues(); 33 Collection get values => _map.values;
34 int get length => _map.length; 34 int get length => _map.length;
35 bool get isEmpty => _map.isEmpty; 35 bool get isEmpty => _map.isEmpty;
36 String toString() => _map.toString(); 36 String toString() => _map.toString();
37 37
38 int get hashCode => _hashCode(_map); 38 int get hashCode => _hashCode(_map);
39 39
40 bool operator ==(other) { 40 bool operator ==(other) {
41 if (other is! YamlMap) return false; 41 if (other is! YamlMap) return false;
42 return deepEquals(this, other); 42 return deepEquals(this, other);
43 } 43 }
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88 } else if (parents.some((p) => p === obj)) { 88 } else if (parents.some((p) => p === obj)) {
89 return -1; 89 return -1;
90 } 90 }
91 91
92 parents.add(obj); 92 parents.add(obj);
93 try { 93 try {
94 if (obj == null) return 0; 94 if (obj == null) return 0;
95 if (obj == true) return 1; 95 if (obj == true) return 1;
96 if (obj == false) return 2; 96 if (obj == false) return 2;
97 if (obj is Map) { 97 if (obj is Map) {
98 return _hashCode(obj.getKeys(), parents) ^ 98 return _hashCode(obj.keys, parents) ^
99 _hashCode(obj.getValues(), parents); 99 _hashCode(obj.values, parents);
100 } 100 }
101 if (obj is List) { 101 if (obj is List) {
102 // This is probably a really bad hash function, but presumably we'll get t his 102 // This is probably a really bad hash function, but presumably we'll get t his
103 // in the standard library before it actually matters. 103 // in the standard library before it actually matters.
104 int hash = 0; 104 int hash = 0;
105 for (var e in obj) { 105 for (var e in obj) {
106 hash ^= _hashCode(e, parents); 106 hash ^= _hashCode(e, parents);
107 } 107 }
108 return hash; 108 return hash;
109 } 109 }
110 return obj.hashCode; 110 return obj.hashCode;
111 } finally { 111 } finally {
112 parents.removeLast(); 112 parents.removeLast();
113 } 113 }
114 } 114 }
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