{-# LANGUAGE EmptyDataDecls, ExistentialQuantification, FlexibleContexts, FlexibleInstances, ForeignFunctionInterface, MultiParamTypeClasses, ScopedTypeVariables, TypeFamilies, TypeSynonymInstances #-} module HROOT.Core.TClass.Interface where import Data.Word import Data.Int import Foreign.C import Foreign.Ptr import FFICXX.Runtime.Cast import HROOT.Core.TClass.RawType import HROOT.Core.TDictionary.Interface class (ITDictionary a) => ITClass a where upcastTClass :: forall a . (FPtr a, ITClass a) => a -> TClass upcastTClass :: forall a. (FPtr a, ITClass a) => a -> TClass upcastTClass a h = let fh :: Ptr (Raw a) fh = a -> Ptr (Raw a) forall a. FPtr a => a -> Ptr (Raw a) get_fptr a h Ptr RawTClass fh2 :: Ptr RawTClass = Ptr (Raw a) -> Ptr RawTClass forall a b. Ptr a -> Ptr b castPtr Ptr (Raw a) fh in Ptr (Raw TClass) -> TClass forall a. FPtr a => Ptr (Raw a) -> a cast_fptr_to_obj Ptr (Raw TClass) Ptr RawTClass fh2 downcastTClass :: forall a . (FPtr a, ITClass a) => TClass -> a downcastTClass :: forall a. (FPtr a, ITClass a) => TClass -> a downcastTClass TClass h = let fh :: Ptr (Raw TClass) fh = TClass -> Ptr (Raw TClass) forall a. FPtr a => a -> Ptr (Raw a) get_fptr TClass h fh2 :: Ptr (Raw a) fh2 = Ptr RawTClass -> Ptr (Raw a) forall a b. Ptr a -> Ptr b castPtr Ptr (Raw TClass) Ptr RawTClass fh in Ptr (Raw a) -> a forall a. FPtr a => Ptr (Raw a) -> a cast_fptr_to_obj Ptr (Raw a) fh2