Enable allow_attributes lint for arrow-buffer

arrow-buffer/src/bigint/mod.rs

@@ -57,7 +57,6 @@ enum DivRemError {
 }
 
 /// A signed 256-bit integer
-#[allow(non_camel_case_types)]
 #[derive(Copy, Clone, Default, Eq, PartialEq, Hash)]
 #[repr(C)]
 pub struct i256 {
@@ -1752,7 +1751,7 @@ mod tests {
         }
     }
 
-    #[allow(clippy::op_ref)]
+    #[expect(clippy::op_ref)]
     fn test_reference_op(il: i256, ir: i256) {
         let r1 = il + ir;
         let r2 = &il + ir;

arrow-buffer/src/buffer/immutable.rs

@@ -767,7 +767,7 @@ mod tests {
     }
 
     #[test]
-    #[allow(clippy::float_cmp)]
+    #[expect(clippy::float_cmp)]
     fn test_as_typed_data() {
         check_as_typed_data!(&[1i8, 3i8, 6i8], i8);
         check_as_typed_data!(&[1u8, 3u8, 6u8], u8);

arrow-buffer/src/lib.rs

@@ -37,6 +37,7 @@
     html_favicon_url = "https://arrow.apache.org/img/arrow-logo_chevrons_black-txt_transparent-bg.svg"
 )]
 #![cfg_attr(docsrs, feature(doc_cfg))]
+#![deny(clippy::allow_attributes)]
 #![warn(missing_docs)]
 
 pub mod alloc;

arrow-buffer/src/util/bit_chunk_iterator.rs

@@ -349,7 +349,7 @@ impl Iterator for BitChunkIterator<'_> {
         }
 
         // cast to *const u64 should be fine since we are using read_unaligned below
-        #[allow(clippy::cast_ptr_alignment)]
+        #[expect(clippy::cast_ptr_alignment)]
         let raw_data = self.buffer.as_ptr() as *const u64;
 
         // bit-packed buffers are stored starting with the least-significant byte first
@@ -556,7 +556,6 @@ mod tests {
     }
 
     #[test]
-    #[allow(clippy::assertions_on_constants)]
     fn test_unaligned_bit_chunk_iterator() {
         let buffer = Buffer::from(&[0xFF; 5]);
         let unaligned = UnalignedBitChunk::new(buffer.as_slice(), 0, 40);

arrow-buffer/src/util/bit_iterator.rs

@@ -931,9 +931,9 @@ mod tests {
                     let mut actual = actual.clone();
                     let mut expected = expected.clone();
                     for _ in 0..expected.len() {
-                        #[allow(clippy::iter_nth_zero)]
+                        #[expect(clippy::iter_nth_zero)]
                         let actual_val = actual.nth(0);
-                        #[allow(clippy::iter_nth_zero)]
+                        #[expect(clippy::iter_nth_zero)]
                         let expected_val = expected.nth(0);
                         assert_eq!(actual_val, expected_val, "Failed on nth(0)");
                     }
@@ -971,7 +971,6 @@ mod tests {
                     let mut actual = actual.clone();
                     let mut expected = expected.clone();
                     for _ in 0..expected.len() {
-                        #[allow(clippy::iter_nth_zero)]
                         let actual_val = actual.nth_back(0);
                         let expected_val = expected.nth_back(0);
                         assert_eq!(actual_val, expected_val, "Failed on nth_back(0)");