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

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

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