{-# LANGUAGE ForeignFunctionInterface, TypeFamilies, MultiParamTypeClasses, 
             FlexibleInstances, TypeSynonymInstances, 
             EmptyDataDecls, ExistentialQuantification, ScopedTypeVariables #-}

-- module HROOT.Class.Interface where

module HROOT.Class.TH3D.Interface where


import Data.Word
import Foreign.ForeignPtr
import HROOT.TypeCast

import HROOT.Class.TH3D.RawType

import HROOT.Class.TH3.Interface
import HROOT.Class.TArrayD.Interface


class (ITH3 a,ITArrayD a) => ITH3D a where

instance Existable TH3D where
  data Exist TH3D = forall a. (FPtr a, ITH3D a) => ETH3D a

upcastTH3D :: (FPtr a, ITH3D a) => a -> TH3D
upcastTH3D h = let fh = get_fptr h
                   fh2 :: ForeignPtr RawTH3D = castForeignPtr fh
               in cast_fptr_to_obj fh2