/// <summary>
/// 定型処理になりそうだったので静的メソッドでチャネル生成。
/// </summary>
/// <typeparam name="TMessage"></typeparam>
/// <param name="receiver"></param>
/// <param name="executor">チャネルを使って、メッセージを送り出す非同期メソッド。</param>
public static void Execute <TMessage>(this CancellableReceiver <TMessage> receiver, Func <CancellableReceiver <TMessage>, Task> executor)
{
receiver.Receiver.SetCompletion(executor(receiver));
}
/// <summary>
/// <see cref="CancellableReceiver{TMessage}"/>
/// <see cref="ReceiverExtensions.SendAsync{TMessageBase, TMessage}(IReceiver{TMessageBase}, IEnumerable{TMessage}, CancellationToken)"/>
/// </summary>
public static Task <IEnumerable <TMessage> > SendAsync <TMessageBase, TMessage>(this CancellableReceiver <TMessageBase> reciever, TMessage[] messages)
where TMessage : TMessageBase
=> SendAsync(reciever, (IEnumerable <TMessage>)messages);
/// <summary>
/// <see cref="CancellableReceiver{TMessage}"/>
/// <see cref="ReceiverExtensions.SendAsync{TMessageBase, TMessage}(IReceiver{TMessageBase}, IEnumerable{TMessage}, CancellationToken)"/>
/// </summary>
public static Task <IEnumerable <TMessage> > SendAsync <TMessageBase, TMessage>(this CancellableReceiver <TMessageBase> reciever, IEnumerable <TMessage> messages)
where TMessage : TMessageBase
=> reciever.Receiver.SendAsync(messages, reciever.CancellationToken);
/// <summary>
/// <see cref="CancellableReceiver{TMessage}"/>
/// <see cref="ReceiverExtensions.SendAsync{TMessageBase, TMessage}(IReceiver{TMessageBase}, TMessage, CancellationToken)"/>
/// </summary>
public static Task <TMessage> SendAsync <TMessageBase, TMessage>(this CancellableReceiver <TMessageBase> reciever, TMessage message)
where TMessage : TMessageBase
=> reciever.Receiver.SendAsync(message, reciever.CancellationToken);