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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. |
| 4 |
| 5 // TODO(nweiz): when all implementations we target have the same name for the |
| 6 // coreimpl implementation of List<E>, extend that rather than wrapping. |
| 7 class _ListWrapper<E> implements List<E> { |
| 8 List _list; |
| 9 |
| 10 _ListWrapper(List this._list); |
| 11 |
| 12 Iterator<E> iterator() => _list.iterator(); |
| 13 |
| 14 void forEach(void f(E element)) => _list.forEach(f); |
| 15 |
| 16 Collection map(f(E element)) => _list.map(f); |
| 17 |
| 18 List<E> filter(bool f(E element)) => _list.filter(f); |
| 19 |
| 20 bool every(bool f(E element)) => _list.every(f); |
| 21 |
| 22 bool some(bool f(E element)) => _list.some(f); |
| 23 |
| 24 bool isEmpty() => _list.isEmpty(); |
| 25 |
| 26 int get length() => _list.length; |
| 27 |
| 28 E operator [](int index) => _list[index]; |
| 29 |
| 30 void operator []=(int index, E value) { _list[index] = value; } |
| 31 |
| 32 void set length(int newLength) { _list.length = newLength; } |
| 33 |
| 34 void add(E value) => _list.add(value); |
| 35 |
| 36 void addLast(E value) => _list.addLast(value); |
| 37 |
| 38 void addAll(Collection<E> collection) => _list.addAll(collection); |
| 39 |
| 40 void sort(int compare(E a, E b)) => _list.sort(compare); |
| 41 |
| 42 int indexOf(E element, [int start = 0]) => _list.indexOf(element, start); |
| 43 |
| 44 int lastIndexOf(E element, [int start = 0]) => |
| 45 _list.lastIndexOf(element, start); |
| 46 |
| 47 void clear() => _list.clear(); |
| 48 |
| 49 E removeLast() => _list.removeLast(); |
| 50 |
| 51 E last() => _list.last(); |
| 52 |
| 53 List<E> getRange(int start, int length) => _list.getRange(start, length); |
| 54 |
| 55 void setRange(int start, int length, List<E> from, [int startFrom = 0]) => |
| 56 _list.setRange(start, length, from, startFrom); |
| 57 |
| 58 void removeRange(int start, int length) => _list.removeRange(start, length); |
| 59 |
| 60 void insertRange(int start, int length, [E initialValue = null]) => |
| 61 _list.insertRange(start, length, initialValue); |
| 62 |
| 63 E get first() => _list[0]; |
| 64 } |
| 65 |
| 66 /** |
| 67 * This class is used to insure the results of list operations are NodeLists |
| 68 * instead of lists. |
| 69 */ |
| 70 class _NodeListWrapper extends _ListWrapper<Node> implements NodeList { |
| 71 _NodeListWrapper(List list) : super(list); |
| 72 |
| 73 NodeList filter(bool f(Node element)) => |
| 74 new _NodeListWrapper(_list.filter(f)); |
| 75 |
| 76 NodeList getRange(int start, int length) => |
| 77 new _NodeListWrapper(_list.getRange(start, length)); |
| 78 } |
| 79 |
| 80 class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC { |
| 81 _NodeImpl _parent; |
| 82 |
| 83 // -- start List<Node> mixins. |
| 84 // Node is the element type. |
| 85 |
| 86 // From Iterable<Node>: |
| 87 |
| 88 Iterator<Node> iterator() { |
| 89 // Note: NodeLists are not fixed size. And most probably length shouldn't |
| 90 // be cached in both iterator _and_ forEach method. For now caching it |
| 91 // for consistency. |
| 92 return new _FixedSizeListIterator<Node>(this); |
| 93 } |
| 94 |
| 95 // From Collection<Node>: |
| 96 |
| 97 void add(_NodeImpl value) { |
| 98 _parent._appendChild(value); |
| 99 } |
| 100 |
| 101 void addLast(_NodeImpl value) { |
| 102 _parent._appendChild(value); |
| 103 } |
| 104 |
| 105 void addAll(Collection<_NodeImpl> collection) { |
| 106 for (_NodeImpl node in collection) { |
| 107 _parent._appendChild(node); |
| 108 } |
| 109 } |
| 110 |
| 111 _NodeImpl removeLast() { |
| 112 final last = this.last(); |
| 113 if (last != null) { |
| 114 _parent._removeChild(last); |
| 115 } |
| 116 return last; |
| 117 } |
| 118 |
| 119 void clear() { |
| 120 _parent.text = ''; |
| 121 } |
| 122 |
| 123 void operator []=(int index, _NodeImpl value) { |
| 124 _parent._replaceChild(value, this[index]); |
| 125 } |
| 126 |
| 127 void forEach(void f(Node element)) => _Collections.forEach(this, f); |
| 128 |
| 129 Collection map(f(Node element)) => _Collections.map(this, [], f); |
| 130 |
| 131 Collection<Node> filter(bool f(Node element)) => |
| 132 new _NodeListWrapper(_Collections.filter(this, <Node>[], f)); |
| 133 |
| 134 bool every(bool f(Node element)) => _Collections.every(this, f); |
| 135 |
| 136 bool some(bool f(Node element)) => _Collections.some(this, f); |
| 137 |
| 138 bool isEmpty() => this.length == 0; |
| 139 |
| 140 // From List<Node>: |
| 141 |
| 142 void sort(int compare(Node a, Node b)) { |
| 143 throw new UnsupportedOperationException("Cannot sort immutable List."); |
| 144 } |
| 145 |
| 146 int indexOf(Node element, [int start = 0]) => |
| 147 _Lists.indexOf(this, element, start, this.length); |
| 148 |
| 149 int lastIndexOf(Node element, [int start = 0]) => |
| 150 _Lists.lastIndexOf(this, element, start); |
| 151 |
| 152 Node last() => this[length - 1]; |
| 153 Node get first() => this[0]; |
| 154 |
| 155 // FIXME: implement thesee. |
| 156 void setRange(int start, int length, List<Node> from, [int startFrom]) { |
| 157 throw new UnsupportedOperationException("Cannot setRange on immutable List."
); |
| 158 } |
| 159 void removeRange(int start, int length) { |
| 160 throw new UnsupportedOperationException("Cannot removeRange on immutable Lis
t."); |
| 161 } |
| 162 void insertRange(int start, int length, [Node initialValue]) { |
| 163 throw new UnsupportedOperationException("Cannot insertRange on immutable Lis
t."); |
| 164 } |
| 165 NodeList getRange(int start, int length) => |
| 166 new _NodeListWrapper(_Lists.getRange(this, start, length, <Node>[])); |
| 167 |
| 168 // -- end List<Node> mixins. |
| 169 |
| 170 $!MEMBERS |
| 171 } |
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