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

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

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