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

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

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