projects
/
ghc-base.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
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
b96efa7
..
2f98c70
100644
(file)
--- a/
Data/Maybe.hs
+++ b/
Data/Maybe.hs
@@
-1,4
+1,4
@@
-{-# LANGUAGE CPP, NoImplicitPrelude #-}
+{-# LANGUAGE CPP, NoImplicitPrelude, DeriveGeneric #-}
-----------------------------------------------------------------------------
-- |
-----------------------------------------------------------------------------
-- |
@@
-33,6
+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__
@@
-65,7
+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