| // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // Iterator for arrays with fixed size. |
| class _FixedSizeListIterator<T> extends _VariableSizeListIterator<T> { |
| _FixedSizeListIterator(List<T> array) |
| : super(array), |
| _length = array.length; |
| |
| bool get hasNext => _length > _pos; |
| |
| final int _length; // Cache array length for faster access. |
| } |
| |
| // Iterator for arrays with variable size. |
| class _VariableSizeListIterator<T> implements Iterator<T> { |
| _VariableSizeListIterator(List<T> array) |
| : _array = array, |
| _pos = 0; |
| |
| bool get hasNext => _array.length > _pos; |
| |
| T next() { |
| if (!hasNext) { |
| throw new StateError("No more elements"); |
| } |
| return _array[_pos++]; |
| } |
| |
| final List<T> _array; |
| int _pos; |
| } |