clippy

src/key.rs

@@ -9,7 +9,7 @@ const SIZE: usize = 16;
 pub struct Key([u8; SIZE]);
 
 impl Key {
-    #[allow(clippy::cast_possible_truncation)] // len is in [0; 15].
+    #[expect(clippy::cast_possible_truncation, reason = "len is in [0; 15]")]
     const fn len(self) -> u8 {
         (15 - (u128::from_be_bytes(self.0).trailing_ones() / 8)) as u8
     }
@@ -36,7 +36,10 @@ impl AsRef<[u8]> for Key {
 }
 
 impl From<Key> for CellIndex {
-    #[allow(clippy::cast_possible_truncation)] // resolution is in [0; 15].
+    #[expect(
+        clippy::cast_possible_truncation,
+        reason = "resolution is in [0; 15]"
+    )]
     fn from(value: Key) -> Self {
         let res = value.len();
         let key = value.0;

src/lib.rs

@@ -114,6 +114,7 @@
     clippy::module_name_repetitions,
     // Usually yes, but not really applicable for most literals in this crate.
     clippy::unreadable_literal,
+    reason = "allow some exceptions"
 )]
 
 // }}}

src/map.rs

@@ -191,7 +191,10 @@ impl<D: AsRef<[u8]>> FrozenMap<D> {
     /// }
     /// # Ok::<(), Box<dyn std::error::Error>>(())
     /// ```
-    #[allow(clippy::missing_panics_doc)] // Expect don't need to be documented.
+    #[expect(
+        clippy::missing_panics_doc,
+        reason = "expect don't need to be documented"
+    )]
     pub fn descendants(
         &self,
         index: CellIndex,
@@ -652,9 +655,8 @@ impl Iterator for FrozenMapValues<'_> {
     type Item = u64;
 
     fn next(&mut self) -> Option<Self::Item> {
-        self.values.next().map(|value| {
+        self.values.next().inspect(|_| {
             self.count += 1;
-            value
         })
     }
 

src/set.rs

@@ -135,7 +135,10 @@ impl<D: AsRef<[u8]>> FrozenSet<D> {
     /// }
     /// # Ok::<(), Box<dyn std::error::Error>>(())
     /// ```
-    #[allow(clippy::missing_panics_doc)] // Expect don't need to be documented.
+    #[expect(
+        clippy::missing_panics_doc,
+        reason = "expect don't need to be documented"
+    )]
     pub fn descendants(
         &self,
         index: CellIndex,