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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 part of html_common; | 5 part of html_common; |
6 | 6 |
7 class Lists { | 7 class Lists { |
8 | |
9 /** | 8 /** |
10 * Returns the index in the array [a] of the given [element], starting | 9 * Returns the index in the array [a] of the given [element], starting |
11 * the search at index [startIndex] to [endIndex] (exclusive). | 10 * the search at index [startIndex] to [endIndex] (exclusive). |
12 * Returns -1 if [element] is not found. | 11 * Returns -1 if [element] is not found. |
13 */ | 12 */ |
14 static int indexOf(List a, | 13 static int indexOf(List a, Object element, int startIndex, int endIndex) { |
15 Object element, | |
16 int startIndex, | |
17 int endIndex) { | |
18 if (startIndex >= a.length) { | 14 if (startIndex >= a.length) { |
19 return -1; | 15 return -1; |
20 } | 16 } |
21 if (startIndex < 0) { | 17 if (startIndex < 0) { |
22 startIndex = 0; | 18 startIndex = 0; |
23 } | 19 } |
24 for (int i = startIndex; i < endIndex; i++) { | 20 for (int i = startIndex; i < endIndex; i++) { |
25 if (a[i] == element) { | 21 if (a[i] == element) { |
26 return i; | 22 return i; |
27 } | 23 } |
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66 return accumulator; | 62 return accumulator; |
67 } | 63 } |
68 } | 64 } |
69 | 65 |
70 /** | 66 /** |
71 * For accessing underlying node lists, for dart:js interop. | 67 * For accessing underlying node lists, for dart:js interop. |
72 */ | 68 */ |
73 abstract class NodeListWrapper { | 69 abstract class NodeListWrapper { |
74 List<Node> get rawList; | 70 List<Node> get rawList; |
75 } | 71 } |
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