{-# LANGUAGE EmptyDataDecls, ExistentialQuantification, FlexibleContexts, FlexibleInstances, ForeignFunctionInterface, MultiParamTypeClasses, ScopedTypeVariables, TypeFamilies, TypeSynonymInstances #-} module GDAL.OGRLayer.Interface where import Data.Word import Data.Int import Foreign.C import Foreign.Ptr import FFICXX.Runtime.Cast import GDAL.OGRLayer.RawType import GDAL.OGRFeature.RawType import GDAL.OGRFeatureDefn.RawType import GDAL.GDALMajorObject.Interface class (IGDALMajorObject a) => IOGRLayer a where getFeature :: () => a -> CInt -> IO OGRFeature getFeatureCount :: () => a -> CInt -> IO CInt getLayerDefn :: () => a -> IO OGRFeatureDefn getNextFeature :: () => a -> IO OGRFeature resetReading :: () => a -> IO () upcastOGRLayer :: forall a . (FPtr a, IOGRLayer a) => a -> OGRLayer upcastOGRLayer :: forall a. (FPtr a, IOGRLayer a) => a -> OGRLayer upcastOGRLayer 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 RawOGRLayer fh2 :: Ptr RawOGRLayer = Ptr (Raw a) -> Ptr RawOGRLayer forall a b. Ptr a -> Ptr b castPtr Ptr (Raw a) fh in Ptr (Raw OGRLayer) -> OGRLayer forall a. FPtr a => Ptr (Raw a) -> a cast_fptr_to_obj Ptr (Raw OGRLayer) Ptr RawOGRLayer fh2 downcastOGRLayer :: forall a . (FPtr a, IOGRLayer a) => OGRLayer -> a downcastOGRLayer :: forall a. (FPtr a, IOGRLayer a) => OGRLayer -> a downcastOGRLayer OGRLayer h = let fh :: Ptr (Raw OGRLayer) fh = OGRLayer -> Ptr (Raw OGRLayer) forall a. FPtr a => a -> Ptr (Raw a) get_fptr OGRLayer h fh2 :: Ptr (Raw a) fh2 = Ptr RawOGRLayer -> Ptr (Raw a) forall a b. Ptr a -> Ptr b castPtr Ptr (Raw OGRLayer) Ptr RawOGRLayer fh in Ptr (Raw a) -> a forall a. FPtr a => Ptr (Raw a) -> a cast_fptr_to_obj Ptr (Raw a) fh2