| // Copyright (c) 2013, 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. |
| |
| part of dart.dom.html; |
| |
| /** |
| * A list which just wraps another list, for either intercepting list calls or |
| * retyping the list (for example, from List<A> to List<B> where B extends A). |
| */ |
| class _WrappedList<E> implements List<E> { |
| final List _list; |
| |
| _WrappedList(this._list); |
| |
| // Iterable APIs |
| |
| Iterator<E> get iterator => new _WrappedIterator(_list.iterator); |
| |
| Iterable map(f(E element)) => _list.map(f); |
| |
| Iterable<E> where(bool f(E element)) => _list.where(f); |
| |
| Iterable expand(Iterable f(E element)) => _list.expand(f); |
| |
| bool contains(E element) => _list.contains(element); |
| |
| void forEach(void f(E element)) { _list.forEach(f); } |
| |
| E reduce(E combine(E value, E element)) => |
| _list.reduce(combine); |
| |
| dynamic fold(initialValue, combine(previousValue, E element)) => |
| _list.fold(initialValue, combine); |
| |
| bool every(bool f(E element)) => _list.every(f); |
| |
| String join([String separator = ""]) => _list.join(separator); |
| |
| bool any(bool f(E element)) => _list.any(f); |
| |
| List<E> toList({ bool growable: true }) => |
| new List.from(_list, growable: growable); |
| |
| Set<E> toSet() => _list.toSet(); |
| |
| int get length => _list.length; |
| |
| bool get isEmpty => _list.isEmpty; |
| |
| Iterable<E> take(int n) => _list.take(n); |
| |
| Iterable<E> takeWhile(bool test(E value)) => _list.takeWhile(test); |
| |
| Iterable<E> skip(int n) => _list.skip(n); |
| |
| Iterable<E> skipWhile(bool test(E value)) => _list.skipWhile(test); |
| |
| E get first => _list.first; |
| |
| E get last => _list.last; |
| |
| E get single => _list.single; |
| |
| E firstWhere(bool test(E value), { E orElse() }) => |
| _list.firstWhere(test, orElse: orElse); |
| |
| E lastWhere(bool test(E value), {E orElse()}) => |
| _list.lastWhere(test, orElse: orElse); |
| |
| E singleWhere(bool test(E value)) => _list.singleWhere(test); |
| |
| E elementAt(int index) => _list.elementAt(index); |
| |
| // Collection APIs |
| |
| void add(E element) { _list.add(element); } |
| |
| void addAll(Iterable<E> elements) { _list.addAll(elements); } |
| |
| void remove(Object element) { _list.remove(element); } |
| |
| void removeWhere(bool test(E element)) { _list.removeWhere(test); } |
| |
| void retainWhere(bool test(E element)) { _list.retainWhere(test); } |
| |
| void clear() { _list.clear(); } |
| |
| // List APIs |
| |
| E operator [](int index) => _list[index]; |
| |
| void operator []=(int index, E value) { _list[index] = value; } |
| |
| void set length(int newLength) { _list.length = newLength; } |
| |
| Iterable<E> get reversed => _list.reversed; |
| |
| void sort([int compare(E a, E b)]) { _list.sort(compare); } |
| |
| int indexOf(E element, [int start = 0]) => _list.indexOf(element, start); |
| |
| int lastIndexOf(E element, [int start]) => _list.lastIndexOf(element, start); |
| |
| void insert(int index, E element) => _list.insert(index, element); |
| |
| E removeAt(int index) => _list.removeAt(index); |
| |
| E removeLast() => _list.removeLast(); |
| |
| List<E> sublist(int start, [int end]) => _list.sublist(start, end); |
| |
| Iterable<E> getRange(int start, int end) => _list.getRange(start, end); |
| |
| void setRange(int start, int length, List<E> from, [int startFrom]) { |
| _list.setRange(start, length, from, startFrom); |
| } |
| |
| void removeRange(int start, int length) { _list.removeRange(start, length); } |
| |
| void insertRange(int start, int length, [E fill]) { |
| _list.insertRange(start, length, fill); |
| } |
| |
| Map<int, E> asMap() => _list.asMap(); |
| |
| String toString() { |
| StringBuffer buffer = new StringBuffer('['); |
| buffer.writeAll(this, ', '); |
| buffer.write(']'); |
| return buffer.toString(); |
| } |
| } |
| |
| /** |
| * Iterator wrapper for _WrappedList. |
| */ |
| class _WrappedIterator<E> implements Iterator<E> { |
| Iterator _iterator; |
| |
| _WrappedIterator(this._iterator); |
| |
| bool moveNext() { |
| return _iterator.moveNext(); |
| } |
| |
| E get current => _iterator.current; |
| } |