updates, hierarchical

[clean-tests.git] / uds / uds.dcl

diff --git a/uds/uds.dcl b/uds/uds.dcl
index 8c3e495..6f3abd4 100644 (file)
--- a/uds/uds.dcl
+++ b/uds/uds.dcl
@@ -6,14 +6,13 @@ from Control.Monad.State import :: StateT
 from Data.Either import :: Either
 from Data.Functor import class Functor
 from Data.Map import :: Map
-from StdMaybe import :: Maybe
 from StdOverloaded import class <, class fromString
 from System.FilePath import :: FilePath
 from System.IO import :: IO
 from System.Time import :: Timestamp
 
 class MonadFail m | Monad m where fail :: String -> m a
-instance MonadFail Maybe, []
+instance MonadFail ?, []
 instance MonadFail (Either a) | fromString a
 instance MonadFail (StateT s m) | MonadFail m