{-# LANGUAGE FlexibleInstances, FlexibleContexts, TypeFamilies,
  MultiParamTypeClasses, OverlappingInstances, IncoherentInstances
  #-}
module OGDF.GraphIO.Cast where
import Foreign.Ptr
import FFICXX.Runtime.Cast
import System.IO.Unsafe
import OGDF.GraphIO.RawType
import OGDF.GraphIO.Interface

instance (IGraphIO a, FPtr a) => Castable (a) (Ptr RawGraphIO)
         where
        cast :: forall r. a -> (Ptr RawGraphIO -> IO r) -> IO r
cast a
x Ptr RawGraphIO -> IO r
f = Ptr RawGraphIO -> IO r
f (Ptr (Raw a) -> Ptr RawGraphIO
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 RawGraphIO -> (a -> IO r) -> IO r
uncast Ptr RawGraphIO
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 RawGraphIO -> Ptr (Raw a)
forall a b. Ptr a -> Ptr b
castPtr Ptr RawGraphIO
x))

instance () => Castable (GraphIO) (Ptr RawGraphIO) where
        cast :: forall r. GraphIO -> (Ptr RawGraphIO -> IO r) -> IO r
cast GraphIO
x Ptr RawGraphIO -> IO r
f = Ptr RawGraphIO -> IO r
f (Ptr RawGraphIO -> Ptr RawGraphIO
forall a b. Ptr a -> Ptr b
castPtr (GraphIO -> Ptr (Raw GraphIO)
forall a. FPtr a => a -> Ptr (Raw a)
get_fptr GraphIO
x))
        uncast :: forall r. Ptr RawGraphIO -> (GraphIO -> IO r) -> IO r
uncast Ptr RawGraphIO
x GraphIO -> IO r
f = GraphIO -> IO r
f (Ptr (Raw GraphIO) -> GraphIO
forall a. FPtr a => Ptr (Raw a) -> a
cast_fptr_to_obj (Ptr RawGraphIO -> Ptr RawGraphIO
forall a b. Ptr a -> Ptr b
castPtr Ptr RawGraphIO
x))