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// Copyright (c) 2014, 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.
part of dart.core;
/// A generic destination for data.
/// Multiple data values can be put into a sink, and when no more data is
/// available, the sink should be closed.
/// This is a generic interface that other data receivers can implement.
abstract class Sink<T> {
/// Adds [data] to the sink.
/// Must not be called after a call to [close].
void add(T data);
/// Closes the sink.
/// The [add] method must not be called after this method.
/// Calling this method more than once is allowed, but does nothing.
void close();