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

-- module HROOT.Class.Interface where

module HROOT.Class.TAttParticle.Interface where


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

import HROOT.Class.TAttParticle.RawType

import HROOT.Class.TNamed.Interface


class (ITNamed a) => ITAttParticle a where

instance Existable TAttParticle where
  data Exist TAttParticle = forall a. (FPtr a, ITAttParticle a) => ETAttParticle a

upcastTAttParticle :: (FPtr a, ITAttParticle a) => a -> TAttParticle
upcastTAttParticle h = let fh = get_fptr h
                           fh2 :: ForeignPtr RawTAttParticle = castForeignPtr fh
                       in cast_fptr_to_obj fh2