{-# LANGUAGE ForeignFunctionInterface, TypeFamilies, MultiParamTypeClasses, FlexibleInstances, TypeSynonymInstances, EmptyDataDecls, ExistentialQuantification, ScopedTypeVariables #-} -- module HROOT.Class.Interface where module HROOT.Class.TH2S.Interface where import Data.Word import Foreign.ForeignPtr import HROOT.TypeCast import HROOT.Class.TH2S.RawType import HROOT.Class.TH2.Interface import HROOT.Class.TArrayS.Interface class (ITH2 a,ITArrayS a) => ITH2S a where instance Existable TH2S where data Exist TH2S = forall a. (FPtr a, ITH2S a) => ETH2S a upcastTH2S :: (FPtr a, ITH2S a) => a -> TH2S upcastTH2S h = let fh = get_fptr h fh2 :: ForeignPtr RawTH2S = castForeignPtr fh in cast_fptr_to_obj fh2