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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, 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 matcher.util; | 5 library matcher.util; |
6 | 6 |
7 import 'core_matchers.dart'; | 7 import 'core_matchers.dart'; |
8 import 'interfaces.dart'; | 8 import 'interfaces.dart'; |
9 | 9 |
10 /// Useful utility for nesting match states. | 10 /// Useful utility for nesting match states. |
11 void addStateInfo(Map matchState, Map values) { | 11 void addStateInfo(Map matchState, Map values) { |
12 var innerState = new Map.from(matchState); | 12 var innerState = new Map.from(matchState); |
13 matchState.clear(); | 13 matchState.clear(); |
14 matchState['state'] = innerState; | 14 matchState['state'] = innerState; |
15 matchState.addAll(values); | 15 matchState.addAll(values); |
16 } | 16 } |
17 | 17 |
18 /// Takes an argument and returns an equivalent matcher. | 18 /// Takes an argument and returns an equivalent [Matcher]. |
| 19 /// |
19 /// If the argument is already a matcher this does nothing, | 20 /// If the argument is already a matcher this does nothing, |
20 /// else if the argument is a function, it generates a predicate | 21 /// else if the argument is a function, it generates a predicate |
21 /// function matcher, else it generates an equals matcher. | 22 /// function matcher, else it generates an equals matcher. |
22 Matcher wrapMatcher(x) { | 23 Matcher wrapMatcher(x) { |
23 if (x is Matcher) { | 24 if (x is Matcher) { |
24 return x; | 25 return x; |
25 } else if (x is Function) { | 26 } else if (x is Function) { |
26 return predicate(x); | 27 return predicate(x); |
27 } else { | 28 } else { |
28 return equals(x); | 29 return equals(x); |
29 } | 30 } |
30 } | 31 } |
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