HROOT-hist-0.9: src/HROOT/Hist/THStack/Interface.hs

{-# LANGUAGE EmptyDataDecls, ExistentialQuantification,
  FlexibleContexts, FlexibleInstances, ForeignFunctionInterface,
  MultiParamTypeClasses, ScopedTypeVariables, TypeFamilies,
  TypeSynonymInstances #-}
module HROOT.Hist.THStack.Interface where
import Data.Word
import Foreign.C
import Foreign.Ptr
import FFICXX.Runtime.Cast
import HROOT.Hist.THStack.RawType
import HROOT.Core.TNamed.Interface

class ITNamed a => ITHStack a

upcastTHStack :: forall a . (FPtr a, ITHStack a) => a -> THStack
upcastTHStack h
  = let fh = get_fptr h
        fh2 :: Ptr RawTHStack = castPtr fh
      in cast_fptr_to_obj fh2

downcastTHStack :: forall a . (FPtr a, ITHStack a) => THStack -> a
downcastTHStack h
  = let fh = get_fptr h
        fh2 = castPtr fh
      in cast_fptr_to_obj fh2