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Change RnfArgs to be a data family #85

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Merged
merged 1 commit into from
Jun 21, 2022
Merged

Change RnfArgs to be a data family #85

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8 changes: 4 additions & 4 deletions Control/DeepSeq.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -3,9 +3,9 @@
{-# LANGUAGE DefaultSignatures #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE Safe #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE PolyKinds #-}
{-# LANGUAGE EmptyCase #-}
Expand Down Expand Up @@ -152,9 +152,9 @@ instance GNFData arity V1 where
data Zero
data One

data RnfArgs arity a where
RnfArgs0 :: RnfArgs Zero a
RnfArgs1 :: (a -> ()) -> RnfArgs One a
data family RnfArgs arity a
data instance RnfArgs Zero a = RnfArgs0
newtype instance RnfArgs One a = RnfArgs1 (a -> ())

instance GNFData arity U1 where
grnf _ U1 = ()
Expand Down