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Diffstat (limited to 'compiler/codeGen/StgCmmMonad.hs')
| -rw-r--r-- | compiler/codeGen/StgCmmMonad.hs | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/compiler/codeGen/StgCmmMonad.hs b/compiler/codeGen/StgCmmMonad.hs index 8be5c4551f..d6f84c6a0a 100644 --- a/compiler/codeGen/StgCmmMonad.hs +++ b/compiler/codeGen/StgCmmMonad.hs @@ -1,3 +1,4 @@ +{-# LANGUAGE DeriveFunctor #-} {-# LANGUAGE GADTs #-} ----------------------------------------------------------------------------- @@ -111,9 +112,7 @@ import Data.List -------------------------------------------------------- newtype FCode a = FCode { doFCode :: CgInfoDownwards -> CgState -> (a, CgState) } - -instance Functor FCode where - fmap f (FCode g) = FCode $ \i s -> case g i s of (a, s') -> (f a, s') + deriving (Functor) instance Applicative FCode where pure val = FCode (\_info_down state -> (val, state)) |