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1 // Copyright 2013 Google Inc. All Rights Reserved. | 1 // Copyright 2013 Google Inc. All Rights Reserved. |
2 // | 2 // |
3 // Licensed under the Apache License, Version 2.0 (the "License"); | 3 // Licensed under the Apache License, Version 2.0 (the "License"); |
4 // you may not use this file except in compliance with the License. | 4 // you may not use this file except in compliance with the License. |
5 // You may obtain a copy of the License at | 5 // You may obtain a copy of the License at |
6 // | 6 // |
7 // http://www.apache.org/licenses/LICENSE-2.0 | 7 // http://www.apache.org/licenses/LICENSE-2.0 |
8 // | 8 // |
9 // Unless required by applicable law or agreed to in writing, software | 9 // Unless required by applicable law or agreed to in writing, software |
10 // distributed under the License is distributed on an "AS IS" BASIS, | 10 // distributed under the License is distributed on an "AS IS" BASIS, |
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78 * Returns `true` if [a] and [b] are both null, or they are the same length and | 78 * Returns `true` if [a] and [b] are both null, or they are the same length and |
79 * every element in [b] exists in [a]. | 79 * every element in [b] exists in [a]. |
80 */ | 80 */ |
81 bool setsEqual(Set a, Set b) { | 81 bool setsEqual(Set a, Set b) { |
82 if (a == b) return true; | 82 if (a == b) return true; |
83 if (a == null || b == null) return false; | 83 if (a == null || b == null) return false; |
84 if (a.length != b.length) return false; | 84 if (a.length != b.length) return false; |
85 | 85 |
86 return a.containsAll(b); | 86 return a.containsAll(b); |
87 } | 87 } |
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