Converted RasterBand to foreign_types

examples/rasterband.rs

@@ -1,4 +1,3 @@
-use gdal::raster::RasterBand;
 use gdal::{Dataset, Metadata};
 use std::path::Path;
 
@@ -7,7 +6,7 @@ fn main() {
     let dataset = Dataset::open(path).unwrap();
     println!("dataset description: {:?}", dataset.description());
 
-    let rasterband: RasterBand = dataset.rasterband(1).unwrap();
+    let rasterband = dataset.rasterband(1).unwrap();
     println!("rasterband description: {:?}", rasterband.description());
     println!("rasterband no_data_value: {:?}", rasterband.no_data_value());
     println!("rasterband type: {:?}", rasterband.band_type());

src/dataset.rs

@@ -499,14 +499,12 @@ impl Dataset {
     ///
     /// Applies to raster datasets, and fetches the
     /// rasterband at the given _1-based_ index.
-    pub fn rasterband(&self, band_index: isize) -> Result<RasterBand> {
-        unsafe {
-            let c_band = gdal_sys::GDALGetRasterBand(self.c_dataset, band_index as c_int);
-            if c_band.is_null() {
-                return Err(_last_null_pointer_err("GDALGetRasterBand"));
-            }
-            Ok(RasterBand::from_c_rasterband(self, c_band))
+    pub fn rasterband(&self, band_index: isize) -> Result<&mut RasterBand> {
+        let c_band = unsafe { gdal_sys::GDALGetRasterBand(self.c_dataset, band_index as c_int)};
+        if c_band.is_null() {
+            return Err(_last_null_pointer_err("GDALGetRasterBand"));
         }
+        Ok(unsafe { RasterBand::from_ptr_mut(c_band)} )
     }
 
     /// Opens the root group of a multi-dim GDAL raster

src/metadata.rs

@@ -382,7 +382,7 @@ mod tests {
     fn test_set_description() {
         let driver = DriverManager::get_driver_by_name("MEM").unwrap();
         let dataset = driver.create("", 1, 1, 1).unwrap();
-        let mut band = dataset.rasterband(1).unwrap();
+        let band = dataset.rasterband(1).unwrap();
 
         let description = "A merry and cheerful band description";
         assert_eq!(band.description().unwrap(), "");