fourmolu-0.4.0.0: data/examples/declaration/value/function/arrow/proc-applications2.hs
{-# LANGUAGE Arrows #-}
t = proc ys ->
(| f (\y -> returnA -< y) |) ys
g x = proc (y, z) ->
( case compare x y of
LT -> \a -> returnA -< x + a
EQ -> \b -> returnA -< y + z + b
GT -> \c -> returnA -< z + x
) 1