/// <summary>
/// Makes <paramref name="source"/> connectable.
/// </summary>
/// <param name="source">The source sequence.</param>
/// <param name="connect">Set to a <see cref="ConnectDelegate"/> that, when invoked, connects to the <paramref name="source"/>.</param>
/// <remarks>
/// When <paramref name="connect"/> is called, all enumerators awaiting <see cref="IAsyncEnumerator{T}.MoveNextAsync"/> will observe the same sequence.
/// Late enumerators will experience a <see cref="AlreadyConnectedException"/>.
/// </remarks>
public static IAsyncEnumerable <T> Connectable <T>(this IAsyncEnumerable <T> source, out ConnectDelegate connect)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
var connectable = new ConnectableEnumerable <T>(source);
connect = connectable.Connect;
return(connectable);
}
/// <summary>
/// Makes <paramref name="source"/> connectable, pushing the <see cref="ConnectDelegate"/> to the stack.
/// </summary>
public static IAsyncEnumerable <T> Connectable <T>(this IAsyncEnumerable <T> source, Stack <ConnectDelegate> stack)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (stack == null)
{
throw new ArgumentNullException(nameof(stack));
}
var connectable = new ConnectableEnumerable <T>(source);
stack.Push(connectable.Connect);
return(connectable);
}
