fourmolu-0.0.6.0: data/examples/declaration/value/function/arrow/proc-parentheses.hs

{-# LANGUAGE Arrows #-}
foo f = proc a -> ( f -< a )

bar f g = proc a ->
    ( ((f) (
        g
      ))
    -< (((((
        (g
         a)
        )))))
    )