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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 import "dart:collection"; | 5 import "dart:collection"; |
6 | 6 |
7 abstract class Link<T> extends IterableBase<T> { | 7 abstract class Link<T> extends IterableBase<T> { |
8 // does not match constructor for LinkFactory | 8 // does not match constructor for LinkFactory |
9 factory Link(T head, [Link<T> tail]) = LinkFactory<T>; /// static type warning | 9 factory Link(T head, [Link<T> tail]) = LinkFactory<T>; /// static type warning |
10 Link<T> prepend(T element); | 10 Link<T> prepend(T element); |
(...skipping 21 matching lines...) Expand all Loading... |
32 const LinkTail(); | 32 const LinkTail(); |
33 } | 33 } |
34 | 34 |
35 // Does not implement all of Iterable | 35 // Does not implement all of Iterable |
36 class LinkEntry<T> extends AbstractLink<T> { | 36 class LinkEntry<T> extends AbstractLink<T> { |
37 LinkEntry(T head, Link<T> realTail); | 37 LinkEntry(T head, Link<T> realTail); |
38 } | 38 } |
39 | 39 |
40 class Fisk { | 40 class Fisk { |
41 // instantiation of abstract class | 41 // instantiation of abstract class |
42 Link<String> nodes = const EmptyLink(); /// static type warning | 42 Link<String> nodes = const EmptyLink(); // /// static type warning |
43 } | 43 } |
44 | 44 |
45 main() { | 45 main() { |
46 new Fisk(); | 46 new Fisk(); |
47 // instantiation of abstract class | 47 // instantiation of abstract class |
48 new EmptyLink<String>().prepend('hest'); /// static type warning | 48 new EmptyLink<String>().prepend('hest'); /// static type warning |
49 // instantiation of abstract class | 49 // instantiation of abstract class |
50 const EmptyLink<String>().prepend('fisk'); /// static type warning | 50 const EmptyLink<String>().prepend('fisk'); /// static type warning |
51 } | 51 } |
52 | 52 |
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