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Issue 8422005: Remove List.fromList constructor, and List.copyFrom. They are duplicates of the new range methods. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: '' Created 9 years, 1 month ago
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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<T> { 5 class ListFactory<T> {
6 6
7 factory List.from(Iterable<T> other) { 7 factory List.from(Iterable<T> other) {
8 GrowableObjectArray<T> list = new GrowableObjectArray<T>(); 8 GrowableObjectArray<T> list = new GrowableObjectArray<T>();
9 for (final e in other) { 9 for (final e in other) {
10 list.add(e); 10 list.add(e);
11 } 11 }
12 return list; 12 return list;
13 } 13 }
14 14
15 factory List.fromList(List<T> other, int startIndex, int endIndex) { 15 factory List.fromList(List<T> other, int startIndex, int endIndex) {
Ivan Posva 2011/11/02 23:44:07 Since you are cleaning up, please do not forget th
ngeoffray 2011/11/03 07:54:04 Good catch! Follow up CL: http://codereview.chromi
16 List list = new List<T>(); 16 List list = new List<T>();
17 if (endIndex > other.length) endIndex = other.length; 17 if (endIndex > other.length) endIndex = other.length;
18 if (startIndex < 0) startIndex = 0; 18 if (startIndex < 0) startIndex = 0;
19 int count = endIndex - startIndex; 19 int count = endIndex - startIndex;
20 if (count > 0) { 20 if (count > 0) {
21 list.length = count; 21 list.length = count;
22 Arrays.copy(other, startIndex, list, 0, count); 22 Arrays.copy(other, startIndex, list, 0, count);
23 } 23 }
24 return list; 24 return list;
25 } 25 }
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75 } 75 }
76 76
77 void insertRange(int start, int length, [T initialValue = null]) { 77 void insertRange(int start, int length, [T initialValue = null]) {
78 throw const UnsupportedOperationException( 78 throw const UnsupportedOperationException(
79 "Cannot insert range in a non-extendable array"); 79 "Cannot insert range in a non-extendable array");
80 } 80 }
81 81
82 List<T> getRange(int start, int length) { 82 List<T> getRange(int start, int length) {
83 if (length == 0) return []; 83 if (length == 0) return [];
84 Arrays.rangeCheck(this, start, length); 84 Arrays.rangeCheck(this, start, length);
85 return new List<T>.fromList(this, start, start + length); 85 List list = new List<T>();
86 list.length = length;
87 Arrays.copy(this, start, list, 0, length);
88 return list;
86 } 89 }
87 90
88 /** 91 /**
89 * Collection interface. 92 * Collection interface.
90 */ 93 */
91 94
92 void forEach(f(T element)) { 95 void forEach(f(T element)) {
93 Collections.forEach(this, f); 96 Collections.forEach(this, f);
94 } 97 }
95 98
(...skipping 98 matching lines...) Expand 10 before | Expand all | Expand 10 after
194 } 197 }
195 198
196 void insertRange(int start, int length, [T initialValue = null]) { 199 void insertRange(int start, int length, [T initialValue = null]) {
197 throw const UnsupportedOperationException( 200 throw const UnsupportedOperationException(
198 "Cannot insert range in an immutable array"); 201 "Cannot insert range in an immutable array");
199 } 202 }
200 203
201 List<T> getRange(int start, int length) { 204 List<T> getRange(int start, int length) {
202 if (length == 0) return []; 205 if (length == 0) return [];
203 Arrays.rangeCheck(this, start, length); 206 Arrays.rangeCheck(this, start, length);
204 return new List<T>.fromList(this, start, start + length); 207 List list = new List<T>();
208 list.length = length;
209 Arrays.copy(this, start, list, 0, length);
210 return list;
205 } 211 }
206 212
207 /** 213 /**
208 * Collection interface. 214 * Collection interface.
209 */ 215 */
210 216
211 void forEach(f(T element)) { 217 void forEach(f(T element)) {
212 Collections.forEach(this, f); 218 Collections.forEach(this, f);
213 } 219 }
214 220
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299 if (!hasNext()) { 305 if (!hasNext()) {
300 throw const NoMoreElementsException(); 306 throw const NoMoreElementsException();
301 } 307 }
302 return _array[_pos++]; 308 return _array[_pos++];
303 } 309 }
304 310
305 final List<T> _array; 311 final List<T> _array;
306 final int _length; // Cache array length for faster access. 312 final int _length; // Cache array length for faster access.
307 int _pos; 313 int _pos;
308 } 314 }
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