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

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

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