| // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // @dart = 2.9 |
| |
| import "package:expect/expect.dart"; |
| import 'dart:convert'; |
| |
| class MySink extends ChunkedConversionSink<String> { |
| final Function _add; |
| final Function _close; |
| |
| MySink(this._add, this._close); |
| |
| void add(x) { |
| _add(x); |
| } |
| |
| void close() { |
| _close(); |
| } |
| } |
| |
| main() { |
| // Make sure the UTF-8 decoder works eagerly. |
| String lastString; |
| bool isClosed = false; |
| var sink = new MySink((x) => lastString = x, () => isClosed = true); |
| var byteSink = new Utf8Decoder().startChunkedConversion(sink); |
| byteSink.add("abc".codeUnits); |
| Expect.equals("abc", lastString); |
| byteSink.add([0x61, 0xc3]); // 'a' followed by first part of Î. |
| Expect.equals("a", lastString); |
| byteSink.add([0x8e]); // second part of Î. |
| Expect.equals("Î", lastString); |
| Expect.isFalse(isClosed); |
| byteSink.close(); |
| Expect.isTrue(isClosed); |
| } |