{-# LANGUAGE FlexibleInstances, FlexibleContexts, TypeFamilies, MultiParamTypeClasses, OverlappingInstances, IncoherentInstances #-} module HROOT.Graf.TCrown.Cast where import Foreign.Ptr import FFICXX.Runtime.Cast import System.IO.Unsafe import HROOT.Graf.TCrown.RawType import HROOT.Graf.TCrown.Interface instance (ITCrown a, FPtr a) => Castable (a) (Ptr RawTCrown) where cast :: forall r. a -> (Ptr RawTCrown -> IO r) -> IO r cast a x Ptr RawTCrown -> IO r f = Ptr RawTCrown -> IO r f (Ptr (Raw a) -> Ptr RawTCrown 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 RawTCrown -> (a -> IO r) -> IO r uncast Ptr RawTCrown 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 RawTCrown -> Ptr (Raw a) forall a b. Ptr a -> Ptr b castPtr Ptr RawTCrown x)) instance () => Castable (TCrown) (Ptr RawTCrown) where cast :: forall r. TCrown -> (Ptr RawTCrown -> IO r) -> IO r cast TCrown x Ptr RawTCrown -> IO r f = Ptr RawTCrown -> IO r f (Ptr RawTCrown -> Ptr RawTCrown forall a b. Ptr a -> Ptr b castPtr (TCrown -> Ptr (Raw TCrown) forall a. FPtr a => a -> Ptr (Raw a) get_fptr TCrown x)) uncast :: forall r. Ptr RawTCrown -> (TCrown -> IO r) -> IO r uncast Ptr RawTCrown x TCrown -> IO r f = TCrown -> IO r f (Ptr (Raw TCrown) -> TCrown forall a. FPtr a => Ptr (Raw a) -> a cast_fptr_to_obj (Ptr RawTCrown -> Ptr RawTCrown forall a b. Ptr a -> Ptr b castPtr Ptr RawTCrown x))