{-# LANGUAGE EmptyDataDecls, ExistentialQuantification, FlexibleContexts, FlexibleInstances, ForeignFunctionInterface, MultiParamTypeClasses, ScopedTypeVariables, TypeFamilies, TypeSynonymInstances #-} module GDAL.GDALDataset.Interface where import Data.Word import Data.Int import Foreign.C import Foreign.Ptr import FFICXX.Runtime.Cast import GDAL.GDALDataset.RawType import GDAL.OGRLayer.RawType import GDAL.GDALMajorObject.Interface class (IGDALMajorObject a) => IGDALDataset a where getLayer :: () => a -> CInt -> IO OGRLayer getLayerCount :: () => a -> IO CInt upcastGDALDataset :: forall a . (FPtr a, IGDALDataset a) => a -> GDALDataset upcastGDALDataset :: forall a. (FPtr a, IGDALDataset a) => a -> GDALDataset upcastGDALDataset 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 RawGDALDataset fh2 :: Ptr RawGDALDataset = Ptr (Raw a) -> Ptr RawGDALDataset forall a b. Ptr a -> Ptr b castPtr Ptr (Raw a) fh in Ptr (Raw GDALDataset) -> GDALDataset forall a. FPtr a => Ptr (Raw a) -> a cast_fptr_to_obj Ptr (Raw GDALDataset) Ptr RawGDALDataset fh2 downcastGDALDataset :: forall a . (FPtr a, IGDALDataset a) => GDALDataset -> a downcastGDALDataset :: forall a. (FPtr a, IGDALDataset a) => GDALDataset -> a downcastGDALDataset GDALDataset h = let fh :: Ptr (Raw GDALDataset) fh = GDALDataset -> Ptr (Raw GDALDataset) forall a. FPtr a => a -> Ptr (Raw a) get_fptr GDALDataset h fh2 :: Ptr (Raw a) fh2 = Ptr RawGDALDataset -> Ptr (Raw a) forall a b. Ptr a -> Ptr b castPtr Ptr (Raw GDALDataset) Ptr RawGDALDataset fh in Ptr (Raw a) -> a forall a. FPtr a => Ptr (Raw a) -> a cast_fptr_to_obj Ptr (Raw a) fh2