ormolu-0.0.4.0: data/examples/declaration/value/function/pattern/view-pattern.hs

{-# LANGUAGE ViewPatterns #-}

example f (  f    -> 4   ) = True

f (t -> Nothing) = "Nothing"
f (t -> Just _) = "Just"

g ((f, _), f -> 4) = True

multiline (t -> Foo
                  bar
                  baz) = True