cdsmith / my-pipes

Alternative implementation of the pipes concept

my-pipes

Alternative implementation of the pipes concept.

The Pipe type is Pipe lo a b u m r, where:

• lo is either Leftovers or NoLeftovers
• a is the input type
• b is the output type
• u is the upstream return type
• m is the base monad
• r is the return type

The primitive stream operations are:

• tryAwait waits for upstream yield or termination
• yield yields a value to downstream

The await operation is provided via EitherT, and a corresponding withAwait to unwrap the EitherT at the top level.

Exceptions and finalization are to be decided.

Note that simulatePipe is the fundamental abstraction for running a Pipe. The more widely known runPipe is provided as a specialization.