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// 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 'result.dart';
/// Used by [Result.captureSink].
class CaptureSink<T> implements EventSink<T> {
final EventSink<Result<T>> _sink;
CaptureSink(EventSink<Result<T>> sink) : _sink = sink;
void add(T value) {
void addError(Object error, [StackTrace stackTrace]) {
_sink.add(Result.error(error, stackTrace));
void close() {