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