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add GHC.HetMet.{hetmet_kappa,hetmet_kappa_app}
[ghc-base.git]
/
Data
/
Maybe.hs
diff --git
a/Data/Maybe.hs
b/Data/Maybe.hs
index
4a71772
..
2f98c70
100644
(file)
--- a/
Data/Maybe.hs
+++ b/
Data/Maybe.hs
@@
-1,4
+1,5
@@
-{-# OPTIONS_GHC -fno-implicit-prelude #-}
+{-# LANGUAGE CPP, NoImplicitPrelude, DeriveGeneric #-}
+
-----------------------------------------------------------------------------
-- |
-- Module : Data.Maybe
-----------------------------------------------------------------------------
-- |
-- Module : Data.Maybe
@@
-32,6
+33,7
@@
module Data.Maybe
#ifdef __GLASGOW_HASKELL__
import GHC.Base
#ifdef __GLASGOW_HASKELL__
import GHC.Base
+import GHC.Generics (Generic)
#endif
#ifdef __NHC__
#endif
#ifdef __NHC__
@@
-64,7
+66,7
@@
import Maybe
-- error monad can be built using the 'Data.Either.Either' type.
data Maybe a = Nothing | Just a
-- error monad can be built using the 'Data.Either.Either' type.
data Maybe a = Nothing | Just a
- deriving (Eq, Ord)
+ deriving (Eq, Ord, Generic)
instance Functor Maybe where
fmap _ Nothing = Nothing
instance Functor Maybe where
fmap _ Nothing = Nothing