Streams

A type-erasing stream.

Use AnyStream to wrap a stream whose type has details you don’t want to expose. This is typically the case when returning streams from a function or storing streams in properties.

You can also use AnyStream to create a custom stream by providing a closure for the pollNext method, rather than implementing StreamProtocol directly on a custom type.

A type-erasing multicast stream.

Multicast streams can yield their output to more than one receiver.

A type-erasing shared stream.

Shared streams can yield their output to more than one receiver and are safe to use from multiple tasks concurrently.