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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, 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 library yaml.utils; | |
6 | |
7 import 'package:source_span/source_span.dart'; | 5 import 'package:source_span/source_span.dart'; |
8 | 6 |
9 /// A pair of values. | 7 /// A pair of values. |
10 class Pair<E, F> { | 8 class Pair<E, F> { |
11 final E first; | 9 final E first; |
12 final F last; | 10 final F last; |
13 | 11 |
14 Pair(this.first, this.last); | 12 Pair(this.first, this.last); |
15 | 13 |
16 String toString() => '($first, $last)'; | 14 String toString() => '($first, $last)'; |
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35 /// emit a warning. To do so, it calls this callback. The default implementation | 33 /// emit a warning. To do so, it calls this callback. The default implementation |
36 /// prints a message using [print]. | 34 /// prints a message using [print]. |
37 YamlWarningCallback yamlWarningCallback = (message, [span]) { | 35 YamlWarningCallback yamlWarningCallback = (message, [span]) { |
38 // TODO(nweiz): Print to stderr with color when issue 6943 is fixed and | 36 // TODO(nweiz): Print to stderr with color when issue 6943 is fixed and |
39 // dart:io is available. | 37 // dart:io is available. |
40 if (span != null) message = span.message(message); | 38 if (span != null) message = span.message(message); |
41 print(message); | 39 print(message); |
42 }; | 40 }; |
43 | 41 |
44 | 42 |
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