| // Copyright (c) 2013, 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. |
| |
| // @dart = 2.9 |
| |
| main() { |
| var parent = new Element(null); |
| var child = new Element(parent); |
| var result = child.path0.length; |
| if (result != 2) { |
| throw "Expected 2, but child.path0.length was $result"; |
| } |
| } |
| |
| class Element { |
| final Element parent; |
| |
| Element(this.parent); |
| |
| List<Element> get path0 { |
| if (parent == null) { |
| return <Element>[this]; |
| } else { |
| var list = parent.path0; |
| list.add(this); |
| return list; |
| } |
| } |
| } |