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| 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 | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 class Uint32ArrayWrappingImplementation extends ArrayBufferViewWrappingImplement
ation implements Uint32Array { | |
| 6 Uint32ArrayWrappingImplementation._wrap(ptr) : super._wrap(ptr) {} | |
| 7 | |
| 8 factory Uint32ArrayWrappingImplementation(int length) => | |
| 9 LevelDom.wrapUint32Array(new dom.Uint32Array(length)); | |
| 10 | |
| 11 factory Uint32ArrayWrappingImplementation.from(List<num> list) => | |
| 12 // TODO(nweiz): when there's a cross-platform name for the native | |
| 13 // implementation of List, check if [list] is native and if not convert it | |
| 14 // to a native list before sending it to the JS constructor. | |
| 15 LevelDom.wrapUint32Array(new dom.Uint32Array.fromList(list)); | |
| 16 | |
| 17 factory Uint32ArrayWrappingImplementation.fromBuffer(ArrayBuffer buffer) => | |
| 18 LevelDom.wrapUint32Array(new dom.Uint32Array.fromBuffer(LevelDom.unwrap(buff
er))); | |
| 19 | |
| 20 int get length() { return _ptr.length; } | |
| 21 | |
| 22 Uint32Array subarray(int start, [int end]) { | |
| 23 if (end === null) { | |
| 24 return LevelDom.wrapUint32Array(_ptr.subarray(start)); | |
| 25 } else { | |
| 26 return LevelDom.wrapUint32Array(_ptr.subarray(start, end)); | |
| 27 } | |
| 28 } | |
| 29 } | |
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