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

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

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