ormolu-0.8.1.1: data/examples/declaration/value/function/do-single-line-lambda-case.hs
processValue :: Maybe Int -> IO ()
processValue x = do {putStrLn "Processing:"; \case {Just n -> print n; Nothing -> putStrLn "Empty"} x; putStrLn "Done"}
processValue :: Maybe Int -> IO ()
processValue x = do {putStrLn "Processing:"; \case {Just n -> print n; Nothing -> putStrLn "Empty"} x; putStrLn "Done"}