LiveCoding.External

Utilities for integrating live programs into external loops, using IO concurrency. The basic idea is two wormholes (see Winograd-Court's thesis).

Documentation

type ExternalCell m eIn eOut a b = Cell (ReaderT eIn (WriterT eOut m)) a b

type ExternalLoop eIn eOut = Cell IO eIn eOut

runWriterC :: Monad m => Cell (WriterT w m) a b -> Cell m a (b, w)

concurrently :: (MonadIO m, Monoid eOut) => ExternalCell m eIn eOut a b -> IO (Cell m a b, ExternalLoop eIn eOut)

type CellHandle a b = MVar (Cell IO a b)

makeHandle :: Cell IO a b -> IO (CellHandle a b)

stepHandle :: CellHandle a b -> a -> IO b