{-# LANGUAGE EmptyDataDecls, ExistentialQuantification, FlexibleContexts, FlexibleInstances, ForeignFunctionInterface, MultiParamTypeClasses, ScopedTypeVariables, TypeFamilies, TypeSynonymInstances #-} module GDAL.OGRCurve.Interface where import Data.Word import Data.Int import Foreign.C import Foreign.Ptr import FFICXX.Runtime.Cast import GDAL.OGRCurve.RawType import GDAL.OGRPointIterator.RawType import GDAL.OGRGeometry.Interface class (IOGRGeometry a) => IOGRCurve a where getNumPoints :: () => a -> IO CInt getPointIterator :: () => a -> IO OGRPointIterator upcastOGRCurve :: forall a . (FPtr a, IOGRCurve a) => a -> OGRCurve upcastOGRCurve :: forall a. (FPtr a, IOGRCurve a) => a -> OGRCurve upcastOGRCurve a h = let fh :: Ptr (Raw a) fh = a -> Ptr (Raw a) forall a. FPtr a => a -> Ptr (Raw a) get_fptr a h Ptr RawOGRCurve fh2 :: Ptr RawOGRCurve = Ptr (Raw a) -> Ptr RawOGRCurve forall a b. Ptr a -> Ptr b castPtr Ptr (Raw a) fh in Ptr (Raw OGRCurve) -> OGRCurve forall a. FPtr a => Ptr (Raw a) -> a cast_fptr_to_obj Ptr (Raw OGRCurve) Ptr RawOGRCurve fh2 downcastOGRCurve :: forall a . (FPtr a, IOGRCurve a) => OGRCurve -> a downcastOGRCurve :: forall a. (FPtr a, IOGRCurve a) => OGRCurve -> a downcastOGRCurve OGRCurve h = let fh :: Ptr (Raw OGRCurve) fh = OGRCurve -> Ptr (Raw OGRCurve) forall a. FPtr a => a -> Ptr (Raw a) get_fptr OGRCurve h fh2 :: Ptr (Raw a) fh2 = Ptr RawOGRCurve -> Ptr (Raw a) forall a b. Ptr a -> Ptr b castPtr Ptr (Raw OGRCurve) Ptr RawOGRCurve fh in Ptr (Raw a) -> a forall a. FPtr a => Ptr (Raw a) -> a cast_fptr_to_obj Ptr (Raw a) fh2