| // Copyright (c) 2019, 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. |
| |
| import 'dart:io'; |
| |
| /// A string sink that write into a file. |
| class FileStringSink implements StringSink { |
| IOSink _sink; |
| |
| FileStringSink(String path) { |
| _sink = File(path).openWrite(mode: FileMode.append); |
| } |
| |
| @override |
| void write(Object obj) { |
| throw UnimplementedError(); |
| } |
| |
| @override |
| void writeAll(Iterable objects, [String separator = '']) { |
| throw UnimplementedError(); |
| } |
| |
| @override |
| void writeCharCode(int charCode) { |
| throw UnimplementedError(); |
| } |
| |
| @override |
| void writeln([Object obj = '']) { |
| var currentTimeMillis = DateTime.now().millisecondsSinceEpoch; |
| _sink.writeln('$currentTimeMillis $obj'); |
| } |
| } |