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Side by Side Diff: sdk/lib/collection/queue.dart

Issue 11867024: Move some core classes to collection library. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Update status files with bug number. Created 7 years, 11 months ago
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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; 5 part of dart.collection;
6 6
7 /** 7 /**
8 * A [Queue] is a collection that can be manipulated at both ends. One 8 * A [Queue] is a collection that can be manipulated at both ends. One
9 * can iterate over the elements of a queue through [forEach] or with 9 * can iterate over the elements of a queue through [forEach] or with
10 * an [Iterator]. 10 * an [Iterator].
11 */ 11 */
12 abstract class Queue<E> extends Collection<E> { 12 abstract class Queue<E> extends Collection<E> {
13 13
14 /** 14 /**
15 * Creates a queue. 15 * Creates a queue.
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310 _current = null; 310 _current = null;
311 _sentinel = null; 311 _sentinel = null;
312 return false; 312 return false;
313 } 313 }
314 _current = _currentEntry.element; 314 _current = _currentEntry.element;
315 return true; 315 return true;
316 } 316 }
317 317
318 E get current => _current; 318 E get current => _current;
319 } 319 }
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