{-# LANGUAGE FlexibleInstances, FlexibleContexts, TypeFamilies, MultiParamTypeClasses, OverlappingInstances, IncoherentInstances #-} module HROOT.Graf.TArc.Cast where import Foreign.Ptr import FFICXX.Runtime.Cast import System.IO.Unsafe import HROOT.Graf.TArc.RawType import HROOT.Graf.TArc.Interface instance (ITArc a, FPtr a) => Castable (a) (Ptr RawTArc) where cast :: forall r. a -> (Ptr RawTArc -> IO r) -> IO r cast a x Ptr RawTArc -> IO r f = Ptr RawTArc -> IO r f (Ptr (Raw a) -> Ptr RawTArc forall a b. Ptr a -> Ptr b castPtr (a -> Ptr (Raw a) forall a. FPtr a => a -> Ptr (Raw a) get_fptr a x)) uncast :: forall r. Ptr RawTArc -> (a -> IO r) -> IO r uncast Ptr RawTArc x a -> IO r f = a -> IO r f (Ptr (Raw a) -> a forall a. FPtr a => Ptr (Raw a) -> a cast_fptr_to_obj (Ptr RawTArc -> Ptr (Raw a) forall a b. Ptr a -> Ptr b castPtr Ptr RawTArc x)) instance () => Castable (TArc) (Ptr RawTArc) where cast :: forall r. TArc -> (Ptr RawTArc -> IO r) -> IO r cast TArc x Ptr RawTArc -> IO r f = Ptr RawTArc -> IO r f (Ptr RawTArc -> Ptr RawTArc forall a b. Ptr a -> Ptr b castPtr (TArc -> Ptr (Raw TArc) forall a. FPtr a => a -> Ptr (Raw a) get_fptr TArc x)) uncast :: forall r. Ptr RawTArc -> (TArc -> IO r) -> IO r uncast Ptr RawTArc x TArc -> IO r f = TArc -> IO r f (Ptr (Raw TArc) -> TArc forall a. FPtr a => Ptr (Raw a) -> a cast_fptr_to_obj (Ptr RawTArc -> Ptr RawTArc forall a b. Ptr a -> Ptr b castPtr Ptr RawTArc x))