{-# 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))