{-# LANGUAGE EmptyDataDecls, ExistentialQuantification,
  FlexibleContexts, FlexibleInstances, ForeignFunctionInterface,
  MultiParamTypeClasses, ScopedTypeVariables, TypeFamilies,
  TypeSynonymInstances #-}
module OGDF.NodeElement.Interface where
import Data.Word
import Data.Int
import Foreign.C
import Foreign.Ptr
import FFICXX.Runtime.Cast
import OGDF.NodeElement.RawType
import STD.Deletable.Interface

class (IDeletable a) => INodeElement a where

upcastNodeElement ::
                  forall a . (FPtr a, INodeElement a) => a -> NodeElement
upcastNodeElement h
  = let fh = get_fptr h
        fh2 :: Ptr RawNodeElement = castPtr fh
      in cast_fptr_to_obj fh2

downcastNodeElement ::
                    forall a . (FPtr a, INodeElement a) => NodeElement -> a
downcastNodeElement h
  = let fh = get_fptr h
        fh2 = castPtr fh
      in cast_fptr_to_obj fh2