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https://github.com/dart-lang/sdk
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b101a7d002
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
41 lines
1 KiB
Dart
41 lines
1 KiB
Dart
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// @dart = 2.9
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import "package:expect/expect.dart";
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import 'dart:convert';
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class MySink extends ChunkedConversionSink<String> {
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final Function _add;
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final Function _close;
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MySink(this._add, this._close);
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void add(x) {
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_add(x);
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}
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void close() {
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_close();
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}
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}
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main() {
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// Make sure the UTF-8 decoder works eagerly.
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String lastString;
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bool isClosed = false;
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var sink = new MySink((x) => lastString = x, () => isClosed = true);
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var byteSink = new Utf8Decoder().startChunkedConversion(sink);
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byteSink.add("abc".codeUnits);
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Expect.equals("abc", lastString);
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byteSink.add([0x61, 0xc3]); // 'a' followed by first part of Î.
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Expect.equals("a", lastString);
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byteSink.add([0x8e]); // second part of Î.
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Expect.equals("Î", lastString);
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Expect.isFalse(isClosed);
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byteSink.close();
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Expect.isTrue(isClosed);
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}
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