blob: 4743c9490202764646131e6bd387cec9adee6603 [file] [log] [blame]
// Copyright (c) 2016, 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:async';
import '../stream_sink_transformer.dart';
/// A wrapper that coerces the generic type of the sink returned by an inner
/// transformer to `S`.
class TypeSafeStreamSinkTransformer<S, T>
implements StreamSinkTransformer<S, T> {
final StreamSinkTransformer _inner;
StreamSink<S> bind(StreamSink<T> sink) => StreamController(sync: true)<dynamic>().pipe(_inner.bind(sink));