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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, 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 html; | 5 part of html; |
6 | 6 |
7 abstract class _AttributeMap implements Map<String, String> { | 7 abstract class _AttributeMap implements Map<String, String> { |
8 final Element _element; | 8 final Element _element; |
9 | 9 |
10 _AttributeMap(this._element); | 10 _AttributeMap(this._element); |
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214 int get length => keys.length; | 214 int get length => keys.length; |
215 | 215 |
216 // TODO: Use lazy iterator when it is available on Map. | 216 // TODO: Use lazy iterator when it is available on Map. |
217 bool get isEmpty => length == 0; | 217 bool get isEmpty => length == 0; |
218 | 218 |
219 // Helpers. | 219 // Helpers. |
220 String _attr(String key) => 'data-$key'; | 220 String _attr(String key) => 'data-$key'; |
221 bool _matches(String key) => key.startsWith('data-'); | 221 bool _matches(String key) => key.startsWith('data-'); |
222 String _strip(String key) => key.substring(5); | 222 String _strip(String key) => key.substring(5); |
223 } | 223 } |
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