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{- test GHCi support for unlifted types -}
{-# LANGUAGE UnliftedDatatypes #-}
{-# OPTIONS_GHC -fobject-code #-}
module T19628a where
import GHC.Exts
import GHC.Arr
import Data.Kind
import Control.Exception
-- unlifted but boxed datatypes
type Strict :: Type -> TYPE ('BoxedRep 'Unlifted)
data Strict a = Force a
type Strict2 :: Type -> TYPE ('BoxedRep 'Unlifted)
data Strict2 a = Force2 a a
{-# NOINLINE addStrict #-}
addStrict :: Strict Int -> Strict Int -> Strict Int
addStrict (Force x) (Force y) = Force (x+y)
{-# NOINLINE unStrict #-}
unStrict :: Strict a -> a
unStrict (Force x) = x
{-# NOINLINE toStrict #-}
toStrict :: a -> Strict a
toStrict x = Force x
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