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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 /** | 5 /** |
6 * Delegating wrappers for [Iterable], [List], [Set], [Queue] and [Map]. | 6 * Delegating wrappers for [Iterable], [List], [Set], [Queue] and [Map]. |
7 * | 7 * |
8 * Also adds unmodifiable views for `Set` and `Map`, and a fixed length | 8 * Also adds unmodifiable views for `Set` and `Map`, and a fixed length |
9 * view for `List`. The unmodifable list view from `dart:collection` is exported | 9 * view for `List`. The unmodifable list view from `dart:collection` is exported |
10 * as well, just for completeness. | 10 * as well, just for completeness. |
11 */ | 11 */ |
12 library dart.pkg.collection.wrappers; | 12 library dart.pkg.collection.wrappers; |
13 | 13 |
14 import "dart:collection"; | 14 import "dart:collection"; |
15 import "dart:math" show Random; | 15 import "dart:math" show Random; |
16 | 16 |
17 export "dart:collection" show UnmodifiableListView; | |
18 | |
19 export "src/canonicalized_map.dart"; | 17 export "src/canonicalized_map.dart"; |
20 part "src/unmodifiable_wrappers.dart"; | 18 export "src/unmodifiable_wrappers.dart"; |
21 | 19 |
22 /** | 20 /** |
23 * A base class for delegating iterables. | 21 * A base class for delegating iterables. |
24 * | 22 * |
25 * Subclasses can provide a [_base] that should be delegated to. Unlike | 23 * Subclasses can provide a [_base] that should be delegated to. Unlike |
26 * [DelegatingIterable], this allows the base to be created on demand. | 24 * [DelegatingIterable], this allows the base to be created on demand. |
27 */ | 25 */ |
28 abstract class _DelegatingIterableBase<E> implements Iterable<E> { | 26 abstract class _DelegatingIterableBase<E> implements Iterable<E> { |
29 Iterable<E> get _base; | 27 Iterable<E> get _base; |
30 | 28 |
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561 * Returns a new set which contains all the elements of [this] and [other]. | 559 * Returns a new set which contains all the elements of [this] and [other]. |
562 * | 560 * |
563 * That is, the returned set contains all the elements of this [Set] and all | 561 * That is, the returned set contains all the elements of this [Set] and all |
564 * the elements of [other]. | 562 * the elements of [other]. |
565 * | 563 * |
566 * Note that the returned set will use the default equality operation, which | 564 * Note that the returned set will use the default equality operation, which |
567 * may be different than the equality operation [this] uses. | 565 * may be different than the equality operation [this] uses. |
568 */ | 566 */ |
569 Set<V> union(Set<V> other) => toSet()..addAll(other); | 567 Set<V> union(Set<V> other) => toSet()..addAll(other); |
570 } | 568 } |
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