{-# LANGUAGE EmptyDataDecls, ExistentialQuantification, FlexibleContexts, FlexibleInstances, ForeignFunctionInterface, MultiParamTypeClasses, ScopedTypeVariables, TypeFamilies, TypeSynonymInstances #-} module OGDF.RankingModule.Interface where import Data.Word import Data.Int import Foreign.C import Foreign.Ptr import FFICXX.Runtime.Cast import OGDF.RankingModule.RawType import STD.Deletable.Interface class (IDeletable a) => IRankingModule a where upcastRankingModule :: forall a . (FPtr a, IRankingModule a) => a -> RankingModule upcastRankingModule h = let fh = get_fptr h fh2 :: Ptr RawRankingModule = castPtr fh in cast_fptr_to_obj fh2 downcastRankingModule :: forall a . (FPtr a, IRankingModule a) => RankingModule -> a downcastRankingModule h = let fh = get_fptr h fh2 = castPtr fh in cast_fptr_to_obj fh2