| // Copyright (c) 2019, 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. |
| |
| bool equalLists<T>(List<T>? a, List<T>? b) { |
| if (identical(a, b)) return true; |
| if (a == null || b == null) return false; |
| if (a.length != b.length) return false; |
| for (int i = 0; i < a.length; ++i) { |
| if (a[i] != b[i]) return false; |
| } |
| return true; |
| } |
| |
| bool equalSets<K>(Set<K>? a, Set<K>? b) { |
| if (identical(a, b)) return true; |
| if (a == null || b == null) return false; |
| if (a.length != b.length) return false; |
| for (K entry in a) { |
| if (!b.contains(entry)) return false; |
| } |
| return true; |
| } |
| |
| bool equalMaps<K, V>(Map<K, V>? a, Map<K, V>? b) { |
| if (identical(a, b)) return true; |
| if (a == null || b == null) return false; |
| if (a.length != b.length) return false; |
| for (K key in a.keys) { |
| if (!b.containsKey(key) || a[key] != b[key]) return false; |
| } |
| return true; |
| } |
