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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 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 | 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 part of dart._collection.dev; | 5 part of dart._collection.dev; |
6 | 6 |
7 // TODO(ngeoffray): Rename to Lists. | 7 class Lists { |
8 class Arrays { | |
9 static void copy(List src, int srcStart, | 8 static void copy(List src, int srcStart, |
10 List dst, int dstStart, int count) { | 9 List dst, int dstStart, int count) { |
11 if (srcStart < dstStart) { | 10 if (srcStart < dstStart) { |
12 for (int i = srcStart + count - 1, j = dstStart + count - 1; | 11 for (int i = srcStart + count - 1, j = dstStart + count - 1; |
13 i >= srcStart; i--, j--) { | 12 i >= srcStart; i--, j--) { |
14 dst[j] = src[i]; | 13 dst[j] = src[i]; |
15 } | 14 } |
16 } else { | 15 } else { |
17 for (int i = srcStart, j = dstStart; i < srcStart + count; i++, j++) { | 16 for (int i = srcStart, j = dstStart; i < srcStart + count; i++, j++) { |
18 dst[j] = src[i]; | 17 dst[j] = src[i]; |
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91 if (start < 0 ) { | 90 if (start < 0 ) { |
92 String message = "$start must be greater than or equal to 0"; | 91 String message = "$start must be greater than or equal to 0"; |
93 throw new RangeError(message); | 92 throw new RangeError(message); |
94 } | 93 } |
95 if (start + length > a.length) { | 94 if (start + length > a.length) { |
96 String message = "$start + $length must be in the range [0..${a.length})"; | 95 String message = "$start + $length must be in the range [0..${a.length})"; |
97 throw new RangeError(message); | 96 throw new RangeError(message); |
98 } | 97 } |
99 } | 98 } |
100 } | 99 } |
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