fourmolu-0.0.6.0: data/examples/declaration/value/function/arrow/recursive-procs.hs

{-# LANGUAGE Arrows #-}

foo f g = proc (x, y) -> do
  rec
    a <- f y -< x
    b
        <-
      g x
        -<
      y
  bar -< (
    a,
    b
   )
  rec p <- f
             p -< a
  rec q <- g
             q-< b