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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, 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 part of dart.core; |
| 6 |
| 5 /** | 7 /** |
| 6 * A [Map] is an associative container, mapping a key to a value. | 8 * A [Map] is an associative container, mapping a key to a value. |
| 7 * Null values are supported, but null keys are not. | 9 * Null values are supported, but null keys are not. |
| 8 */ | 10 */ |
| 9 abstract class Map<K, V> { | 11 abstract class Map<K, V> { |
| 10 /** | 12 /** |
| 11 * Creates a map with the default implementation. | 13 * Creates a map with the default implementation. |
| 12 */ | 14 */ |
| 13 factory Map() => new _HashMapImpl<K, V>(); | 15 factory Map() => new _HashMapImpl<K, V>(); |
| 14 | 16 |
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| 518 | 520 |
| 519 void clear() { | 521 void clear() { |
| 520 _map.clear(); | 522 _map.clear(); |
| 521 _list.clear(); | 523 _list.clear(); |
| 522 } | 524 } |
| 523 | 525 |
| 524 String toString() { | 526 String toString() { |
| 525 return Maps.mapToString(this); | 527 return Maps.mapToString(this); |
| 526 } | 528 } |
| 527 } | 529 } |
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