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