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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, 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 barback.utils.multiset; | 5 library barback.utils.multiset; |
| 6 | 6 |
| 7 import 'dart:collection'; | 7 import 'dart:collection'; |
| 8 | 8 |
| 9 /// A set of objects where each object can appear multiple times. | 9 /// A set of objects where each object can appear multiple times. |
| 10 /// | 10 /// |
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| 54 if (_map[value] == 0) _map.remove(value); | 54 if (_map[value] == 0) _map.remove(value); |
| 55 return true; | 55 return true; |
| 56 } | 56 } |
| 57 | 57 |
| 58 /// Returns whether [value] is in the set. | 58 /// Returns whether [value] is in the set. |
| 59 bool contains(E value) => _map.containsKey(value); | 59 bool contains(E value) => _map.containsKey(value); |
| 60 | 60 |
| 61 /// Returns the number of copies of [value] in the set. | 61 /// Returns the number of copies of [value] in the set. |
| 62 int count(E value) => _map.containsKey(value) ? _map[value] : 0; | 62 int count(E value) => _map.containsKey(value) ? _map[value] : 0; |
| 63 } | 63 } |
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