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html/lib/src/list_proxy.dart

-// TODO(jmesserly): remove this once we have a subclassable growable list
-// in our libraries.
-
-/// A [List] proxy that you can subclass.
-library list_proxy;
-
-import 'dart:collection';
-import 'dart:math' show Random;
-
-// TOOD(jmesserly): this needs to be removed, but fixing NodeList is tricky.
-class ListProxy<E> extends IterableBase<E> implements List<E> {
-
-  /// The inner [List<T>] with the actual storage.
-  final List<E> _list;
-
-  /// Creates a list proxy.
-  /// You can optionally specify the list to use for [storage] of the items,
-  /// otherwise this will create a [List<E>].
-  ListProxy([List<E> storage]) : _list = storage != null ? storage : <E>[];
-
-  // TODO(jmesserly): This should be on List.
-  // See http://code.google.com/p/dart/issues/detail?id=947
-  bool remove(E item) {
-    int i = indexOf(item);
-    if (i == -1) return false;
-    removeAt(i);
-    return true;
-  }
-
-  void insert(int index, E item) => _list.insert(index, item);
-
-  // Override from Iterable to fix performance
-  // Length and last become O(1) instead of O(N)
-  // The others are just different constant factor.
-  int get length => _list.length;
-  E get last => _list.last;
-  E get first => _list.first;
-  E get single => _list.single;
-
-  // From Iterable
-  Iterator<E> get iterator => _list.iterator;
-
-  // From List
-  E operator [](int index) => _list[index];
-  operator []=(int index, E value) {
-    _list[index] = value;
-  }
-  set length(int value) {
-    _list.length = value;
-  }
-  void add(E value) {
-    _list.add(value);
-  }
-
-  void addLast(E value) {
-    add(value);
-  }
-  void addAll(Iterable<E> collection) {
-    _list.addAll(collection);
-  }
-  void sort([int compare(E a, E b)]) {
-    _list.sort(compare);
-  }
-  void shuffle([Random random]) {
-    _list.shuffle(random);
-  }
-
-  int indexOf(E element, [int start = 0]) => _list.indexOf(element, start);
-  int lastIndexOf(E element, [int start]) => _list.lastIndexOf(element, start);
-  void clear() {
-    _list.clear();
-  }
-
-  E removeAt(int index) => _list.removeAt(index);
-  E removeLast() => _list.removeLast();
-
-  void removeWhere(bool test(E element)) => _list.removeWhere(test);
-  void retainWhere(bool test(E element)) => _list.retainWhere(test);
-
-  List<E> sublist(int start, [int end]) => _list.sublist(start, end);
-
-  List<E> getRange(int start, int end) => _list.getRange(start, end);
-
-  void setRange(int start, int length, List<E> from, [int startFrom = 0]) {
-    _list.setRange(start, length, from, startFrom);
-  }
-  void removeRange(int start, int length) {
-    _list.removeRange(start, length);
-  }
-  void insertAll(int index, Iterable<E> iterable) {
-    _list.insertAll(index, iterable);
-  }
-
-  Iterable<E> get reversed => _list.reversed;
-
-  Map<int, E> asMap() => _list.asMap();
-
-  void replaceRange(int start, int end, Iterable<E> newContents) =>
-      _list.replaceRange(start, end, newContents);
-
-  void setAll(int index, Iterable<E> iterable) => _list.setAll(index, iterable);
-
-  void fillRange(int start, int end, [E fillValue]) =>
-      _list.fillRange(start, end, fillValue);
-}