pipe

auto pipe(SourceArgs,  TargetArgs)(
       ref  Hap!SourceArgs source,
       Hap!TargetArgs *  target,
       void  delegate(SourceArgs,  ref  Hap!TargetArgs) @safe transform)

@safe

Pipe events from a source hap through a transform function to a target hap.

pipe registers a handler on the source hap that transforms each event and re-emits it on the target hap. The returned Registration can be used to disconnect the pipe.

The target is taken by pointer so the lifetime coupling stays explicit: the pipe stores only the pointer, therefore the target hap must outlive the returned registration. Detach the registration before the target goes out of scope.

Parameters

`source`	The upstream hap to listen to.
`target`	The downstream hap to emit transformed values into; must outlive the returned registration.
`transform`	A function that maps source args to target args.

Returns

A Registration for the pipe connection.