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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 /// Base class for any AST item. Roughly corresponds to Node in the DOM. Will | 5 /// Base class for any AST item. Roughly corresponds to Node in the DOM. Will |
| 6 /// be either an Element or Text. | 6 /// be either an Element or Text. |
| 7 interface Node { | 7 interface Node { |
| 8 void accept(NodeVisitor visitor); | 8 void accept(NodeVisitor visitor); |
| 9 } | 9 } |
| 10 | 10 |
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| 54 void visitText(Text text); | 54 void visitText(Text text); |
| 55 | 55 |
| 56 /// Called when an Element has been reached, before its children have been | 56 /// Called when an Element has been reached, before its children have been |
| 57 /// visited. Return `false` to skip its children. | 57 /// visited. Return `false` to skip its children. |
| 58 bool visitElementBefore(Element element); | 58 bool visitElementBefore(Element element); |
| 59 | 59 |
| 60 /// Called when an Element has been reached, after its children have been | 60 /// Called when an Element has been reached, after its children have been |
| 61 /// visited. Will not be called if [visitElementBefore] returns `false`. | 61 /// visited. Will not be called if [visitElementBefore] returns `false`. |
| 62 void visitElementAfter(Element element); | 62 void visitElementAfter(Element element); |
| 63 } | 63 } |
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