fourmolu-0.13.0.0: data/examples/declaration/value/function/arrow/proc-do-simple1-four-out.hs

{-# LANGUAGE Arrows #-}

bar f = proc a -> do b <- f -< a

barbar f g = proc a -> do
    b <- f -< a
    returnA -< b

barbaz f g = proc (a, b) -> do
    c <- f -< a
    d <- g -< b

bazbar f = proc a -> do
    a <-
        f
            -<
                a

foo =
    proc x ->
        do
                returnA -< x
            1

foo a =
    proc x ->
        case Left x of
                Left x -> returnA -< x
            a