{-# LANGUAGE ForeignFunctionInterface, TypeFamilies, MultiParamTypeClasses, FlexibleInstances, TypeSynonymInstances, EmptyDataDecls, ExistentialQuantification, ScopedTypeVariables #-} -- module HROOT.Class.Interface where module HROOT.Class.TH2D.Interface where import Data.Word import Foreign.ForeignPtr import HROOT.TypeCast import HROOT.Class.TH2D.RawType import HROOT.Class.TH2.Interface import HROOT.Class.TArrayD.Interface class (ITH2 a,ITArrayD a) => ITH2D a where instance Existable TH2D where data Exist TH2D = forall a. (FPtr a, ITH2D a) => ETH2D a upcastTH2D :: (FPtr a, ITH2D a) => a -> TH2D upcastTH2D h = let fh = get_fptr h fh2 :: ForeignPtr RawTH2D = castForeignPtr fh in cast_fptr_to_obj fh2