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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 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. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 class ListFactory { | 5 class ListFactory { |
6 factory List<E>.from(Iterable<E> other) { | 6 factory List<E>.from(Iterable<E> other) { |
7 List<E> list = new List<E>(); | 7 List<E> list = new List<E>(); |
8 for (final e in other) { | 8 for (final e in other) { |
9 list.add(e); | 9 list.add(e); |
10 } | 10 } |
11 return list; | 11 return list; |
12 } | 12 } |
13 | 13 |
14 factory List<E>.fromList(List<E> other, int startIndex, int endIndex) { | 14 factory List<E>.fromList(List<E> other, int startIndex, int endIndex) { |
floitsch
2011/10/31 09:40:44
forgot to remove this line.
ngeoffray
2011/10/31 09:47:45
Done.
| |
15 List list = new List<E>(); | |
16 if (endIndex > other.length) endIndex = other.length; | |
17 if (startIndex < 0) startIndex = 0; | |
18 int count = endIndex - startIndex; | |
19 if (count > 0) { | |
20 list.length = count; | |
21 Arrays.copy(other, startIndex, list, 0, count); | |
22 } | |
23 return list; | |
24 } | 15 } |
25 | 16 |
26 factory List<E>([int length = null]) { | 17 factory List<E>([int length = null]) { |
27 bool isFixed = true; | 18 bool isFixed = true; |
28 if (length === null) { | 19 if (length === null) { |
29 length = 0; | 20 length = 0; |
30 isFixed = false; | 21 isFixed = false; |
31 } else if (length < 0) { | 22 } else if (length < 0) { |
32 throw new IllegalArgumentException("negative length $length"); | 23 throw new IllegalArgumentException("negative length $length"); |
33 } | 24 } |
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146 } | 137 } |
147 if (start < 0 || start > this.length) { | 138 if (start < 0 || start > this.length) { |
148 throw new IndexOutOfRangeException(start); | 139 throw new IndexOutOfRangeException(start); |
149 } | 140 } |
150 _insertRange(start, length, initialValue); | 141 _insertRange(start, length, initialValue); |
151 } | 142 } |
152 | 143 |
153 List<T> getRange(int start, int length) { | 144 List<T> getRange(int start, int length) { |
154 if (length == 0) return []; | 145 if (length == 0) return []; |
155 Arrays.rangeCheck(this, start, length); | 146 Arrays.rangeCheck(this, start, length); |
156 return new List<T>.fromList(this, start, start + length); | 147 List list = new List<T>(); |
148 list.length = length; | |
149 Arrays.copy(this, start, list, 0, length); | |
150 return list; | |
157 } | 151 } |
158 | 152 |
159 int indexOf(T element, int startIndex) { | 153 int indexOf(T element, int startIndex) { |
160 return Arrays.indexOf(this, element, startIndex, this.length); | 154 return Arrays.indexOf(this, element, startIndex, this.length); |
161 } | 155 } |
162 | 156 |
163 int lastIndexOf(T element, int startIndex) { | 157 int lastIndexOf(T element, int startIndex) { |
164 return Arrays.lastIndexOf(this, element, startIndex); | 158 return Arrays.lastIndexOf(this, element, startIndex); |
165 } | 159 } |
166 | 160 |
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267 } | 261 } |
268 | 262 |
269 static List _newList(int len) native { | 263 static List _newList(int len) native { |
270 return new List(len); | 264 return new List(len); |
271 } | 265 } |
272 | 266 |
273 static void _throwIndexOutOfRangeException(int index) native { | 267 static void _throwIndexOutOfRangeException(int index) native { |
274 throw new IndexOutOfRangeException(index); | 268 throw new IndexOutOfRangeException(index); |
275 } | 269 } |
276 } | 270 } |
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