| // Copyright 2013 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| part of quiver.collection; |
| |
| /** |
| * An implementation of [Set] that delegates all methods to another [Set]. |
| * For instance you can create a FruitSet like this : |
| * |
| * class FruitSet extends DelegatingSet<Fruit> { |
| * final Set<Fruit> _fruits = new Set<Fruit>(); |
| * |
| * Set<Fruit> get delegate => _fruits; |
| * |
| * // custom methods |
| * } |
| */ |
| abstract class DelegatingSet<E> extends DelegatingIterable<E> |
| implements Set<E> { |
| Set<E> get delegate; |
| |
| bool add(E value) => delegate.add(value); |
| |
| void addAll(Iterable<E> elements) => delegate.addAll(elements); |
| |
| void clear() => delegate.clear(); |
| |
| bool containsAll(Iterable<Object> other) => delegate.containsAll(other); |
| |
| Set<E> difference(Set<E> other) => delegate.difference(other); |
| |
| Set<E> intersection(Set<Object> other) => delegate.intersection(other); |
| |
| E lookup(Object object) => delegate.lookup(object); |
| |
| bool remove(Object value) => delegate.remove(value); |
| |
| void removeAll(Iterable<Object> elements) => delegate.removeAll(elements); |
| |
| void removeWhere(bool test(E element)) => delegate.removeWhere(test); |
| |
| void retainAll(Iterable<Object> elements) => delegate.retainAll(elements); |
| |
| void retainWhere(bool test(E element)) => delegate.retainWhere(test); |
| |
| Set<E> union(Set<E> other) => delegate.union(other); |
| } |