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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 class _FileInputStream extends _BaseDataInputStream implements InputStream { | 5 class _FileInputStream extends _BaseDataInputStream implements InputStream { |
6 _FileInputStream(String name) | 6 _FileInputStream(String name) |
7 : _data = const [], | 7 : _data = const [], |
8 _position = 0, | 8 _position = 0, |
9 _filePosition = 0 { | 9 _filePosition = 0 { |
10 var file = new File(name); | 10 var file = new File(name); |
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191 } else { | 191 } else { |
192 _write(data, 0, data.length); | 192 _write(data, 0, data.length); |
193 } | 193 } |
194 return false; | 194 return false; |
195 } | 195 } |
196 | 196 |
197 bool writeFrom(List<int> buffer, [int offset = 0, int len]) { | 197 bool writeFrom(List<int> buffer, [int offset = 0, int len]) { |
198 // A copy is required by the interface. | 198 // A copy is required by the interface. |
199 var length = buffer.length - offset; | 199 var length = buffer.length - offset; |
200 if (len != null) { | 200 if (len != null) { |
201 if (len > length) throw new IndexOutOfRangeException(len); | 201 if (len > length) throw new RangeError.value(len); |
202 length = len; | 202 length = len; |
203 } | 203 } |
204 var copy = new Uint8List(length); | 204 var copy = new Uint8List(length); |
205 copy.setRange(0, length, buffer, offset); | 205 copy.setRange(0, length, buffer, offset); |
206 return write(copy); | 206 return write(copy); |
207 } | 207 } |
208 | 208 |
209 | 209 |
210 void flush() { | 210 void flush() { |
211 if (_file == null) { | 211 if (_file == null) { |
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765 "readList failed for file '$_name'"); | 765 "readList failed for file '$_name'"); |
766 } | 766 } |
767 var read = response[1]; | 767 var read = response[1]; |
768 var data = response[2]; | 768 var data = response[2]; |
769 buffer.setRange(offset, read, data); | 769 buffer.setRange(offset, read, data); |
770 return read; | 770 return read; |
771 }); | 771 }); |
772 } | 772 } |
773 | 773 |
774 static void _checkReadWriteListArguments(int length, int offset, int bytes) { | 774 static void _checkReadWriteListArguments(int length, int offset, int bytes) { |
775 if (offset < 0) throw new IndexOutOfRangeException(offset); | 775 if (offset < 0) throw new RangeError.value(offset); |
776 if (bytes < 0) throw new IndexOutOfRangeException(bytes); | 776 if (bytes < 0) throw new RangeError.value(bytes); |
777 if ((offset + bytes) > length) { | 777 if ((offset + bytes) > length) { |
778 throw new IndexOutOfRangeException(offset + bytes); | 778 throw new RangeError.value(offset + bytes); |
779 } | 779 } |
780 } | 780 } |
781 | 781 |
782 external static _readList(int id, List<int> buffer, int offset, int bytes); | 782 external static _readList(int id, List<int> buffer, int offset, int bytes); |
783 | 783 |
784 int readListSync(List<int> buffer, int offset, int bytes) { | 784 int readListSync(List<int> buffer, int offset, int bytes) { |
785 _checkNotClosed(); | 785 _checkNotClosed(); |
786 if (buffer is !List || offset is !int || bytes is !int) { | 786 if (buffer is !List || offset is !int || bytes is !int) { |
787 throw new FileIOException( | 787 throw new FileIOException( |
788 "Invalid arguments to readList for file '$_name'"); | 788 "Invalid arguments to readList for file '$_name'"); |
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1080 new FileIOException("File closed '$_name'")); | 1080 new FileIOException("File closed '$_name'")); |
1081 }); | 1081 }); |
1082 return completer.future; | 1082 return completer.future; |
1083 } | 1083 } |
1084 | 1084 |
1085 final String _name; | 1085 final String _name; |
1086 int _id; | 1086 int _id; |
1087 | 1087 |
1088 SendPort _fileService; | 1088 SendPort _fileService; |
1089 } | 1089 } |
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