Fix all clippy warnings

examples/gen_nifti/main.rs

@@ -2,6 +2,7 @@
 
 extern crate nifti;
 
+#[cfg(feature = "ndarray_volumes")]
 use std::env;
 
 #[cfg(feature = "ndarray_volumes")]

src/affine.rs

@@ -15,7 +15,7 @@ where
     T: Copy + Scalar,
 {
     let translation = Vector3::new(affine[12], affine[13], affine[14]);
-    let affine = affine.fixed_slice::<3, 3>(0, 0).into_owned();
+    let affine = affine.fixed_view::<3, 3>(0, 0).into_owned();
     (affine, translation)
 }
 

src/header.rs

@@ -314,13 +314,13 @@ impl NiftiHeader {
     /// Get the qform coordinate mapping method as a validated enum.
     pub fn qform(&self) -> Result<XForm> {
         FromPrimitive::from_i16(self.qform_code)
-            .ok_or(NiftiError::InvalidCode("qform", self.qform_code as i16))
+            .ok_or(NiftiError::InvalidCode("qform", self.qform_code))
     }
 
     /// Get the sform coordinate mapping method as a validated enum.
     pub fn sform(&self) -> Result<XForm> {
         FromPrimitive::from_i16(self.sform_code)
-            .ok_or(NiftiError::InvalidCode("sform", self.sform_code as i16))
+            .ok_or(NiftiError::InvalidCode("sform", self.sform_code))
     }
 
     /// Ensure that the current `descrip` field is valid and is exactly equal to 80 bytes.

src/object.rs

@@ -18,18 +18,12 @@ use std::path::Path;
 pub use crate::util::{GzDecodedFile, MaybeGzDecodedFile};
 
 /// Options and flags which can be used to configure how a NIfTI image is read.
-#[derive(Debug, Clone, PartialEq)]
+#[derive(Debug, Clone, Default, PartialEq)]
 pub struct ReaderOptions {
     /// Whether to automatically fix value in the header
     fix_header: bool,
 }
 
-impl Default for ReaderOptions {
-    fn default() -> Self {
-        ReaderOptions { fix_header: false }
-    }
-}
-
 impl ReaderOptions {
     /// Creates a blank new set of options ready for configuration.
     ///
@@ -100,18 +94,12 @@ impl ReaderOptions {
 }
 
 /// Options and flags which can be used to configure how a NIfTI image is read and iterated.
-#[derive(Debug, Clone, PartialEq)]
+#[derive(Debug, Clone, Default, PartialEq)]
 pub struct ReaderStreamedOptions {
     /// Whether to automatically fix value in the header
     fix_header: bool,
 }
 
-impl Default for ReaderStreamedOptions {
-    fn default() -> Self {
-        ReaderStreamedOptions { fix_header: false }
-    }
-}
-
 impl ReaderStreamedOptions {
     /// Creates a blank new set of options ready for configuration.
     ///
@@ -509,7 +497,7 @@ impl<V> GenericNiftiObject<V> {
         };
 
         // fetch volume (rest of file)
-        Ok((V::from_reader(source, &header, options)?, ext))
+        Ok((V::from_reader(source, header, options)?, ext))
     }
 
     fn from_file_impl<P, R>(
@@ -613,6 +601,6 @@ impl<V> GenericNiftiObject<V> {
         V: FromSource<MaybeGzDecodedFile>,
     {
         let reader = open_file_maybe_gz(path)?;
-        Self::from_reader_with_extensions(reader, &header, extender, options)
+        Self::from_reader_with_extensions(reader, header, extender, options)
     }
 }

src/volume/element.rs

@@ -153,7 +153,7 @@ pub trait DataElement:
         let mut cursor: &[u8] = &vec;
         let n = align_of::<Self>();
         (0..n)
-            .map(|_| Self::from_raw(&mut cursor, endianness.clone()))
+            .map(|_| Self::from_raw(&mut cursor, endianness))
             .collect()
     }
 }

src/volume/inmem.rs

@@ -159,9 +159,9 @@ impl InMemNiftiVolume {
             .unwrap_or(false);
         let file = BufReader::new(File::open(path)?);
         if gz {
-            InMemNiftiVolume::from_reader(GzDecoder::new(file), &header)
+            InMemNiftiVolume::from_reader(GzDecoder::new(file), header)
         } else {
-            InMemNiftiVolume::from_reader(file, &header)
+            InMemNiftiVolume::from_reader(file, header)
         }
     }
 

src/volume/util.rs

@@ -20,7 +20,7 @@ pub fn coords_to_index(coords: &[u16], dim: &[u16]) -> Result<usize> {
         ));
     }
 
-    if !coords.iter().zip(dim).all(|(i, d)| *i < (*d) as u16) {
+    if !coords.iter().zip(dim).all(|(&i, &d)| i < d) {
         return Err(NiftiError::OutOfBounds(Vec::from(coords)));
     }
 

src/writer.rs

@@ -170,7 +170,7 @@ impl<'a> WriterOptions<'a> {
                 write_data::<_, A, _, _, _, _>(writer, data)?;
             }
         } else {
-            let data_file = File::create(&data_path)?;
+            let data_file = File::create(data_path)?;
             if let Some(compression_level) = self.compression {
                 let mut writer = ByteOrdered::runtime(
                     GzEncoder::new(header_file, compression_level),
@@ -231,7 +231,7 @@ impl<'a> WriterOptions<'a> {
                 write_data::<_, u8, _, _, _, _>(writer, data)?;
             }
         } else {
-            let data_file = File::create(&data_path)?;
+            let data_file = File::create(data_path)?;
             if let Some(compression_level) = self.compression {
                 let mut writer = ByteOrdered::runtime(
                     GzEncoder::new(header_file, compression_level),
@@ -463,7 +463,7 @@ where
     let slice = arr_data.as_slice().unwrap();
     let bytes = transmute_to_bytes(slice);
     let (writer, endianness) = writer.into_parts();
-    let bytes = adapt_bytes::<B, _>(&bytes, endianness);
-    writer.write_all(&*bytes)?;
+    let bytes = adapt_bytes::<B, _>(bytes, endianness);
+    writer.write_all(&bytes)?;
     Ok(())
 }