Fixed new clippy lints.

src/list/mod.rs

@@ -435,7 +435,7 @@ where
     length: usize,
 }
 
-impl<'a, T, P> IterPtr<'a, T, P>
+impl<T, P> IterPtr<'_, T, P>
 where
     P: SharedPointerKind,
 {
@@ -466,7 +466,7 @@ where
     }
 }
 
-impl<'a, T, P> ExactSizeIterator for IterPtr<'a, T, P> where P: SharedPointerKind {}
+impl<T, P> ExactSizeIterator for IterPtr<'_, T, P> where P: SharedPointerKind {}
 
 #[cfg(feature = "serde")]
 pub mod serde {

src/list/test.rs

@@ -336,8 +336,10 @@ fn test_clone() {
 fn test_drop_list() {
     // When it is dropped, it will set the variable it owned to false.
     use core::cell::Cell;
+
     struct DropStruct<'a>(&'a Cell<bool>);
-    impl<'a> Drop for DropStruct<'a> {
+
+    impl Drop for DropStruct<'_> {
         fn drop(&mut self) {
             self.0.set(false);
         }

src/map/hash_trie_map/mod.rs

@@ -913,7 +913,7 @@ where
     }
 }
 
-impl<'a, K, Q: ?Sized, V, P, H: BuildHasher> Index<&'a Q> for HashTrieMap<K, V, P, H>
+impl<K, Q: ?Sized, V, P, H: BuildHasher> Index<&Q> for HashTrieMap<K, V, P, H>
 where
     K: Eq + Hash + Borrow<Q>,
     Q: Hash + Eq,
@@ -1101,7 +1101,7 @@ mod iter_utils {
     }
 }
 
-impl<'a, K, V, P> IterPtr<'a, K, V, P>
+impl<K, V, P> IterPtr<'_, K, V, P>
 where
     K: Eq + Hash,
     P: SharedPointerKind,
@@ -1149,7 +1149,7 @@ where
     }
 }
 
-impl<'a, K: Eq + Hash, V, P> ExactSizeIterator for IterPtr<'a, K, V, P> where P: SharedPointerKind {}
+impl<K: Eq + Hash, V, P> ExactSizeIterator for IterPtr<'_, K, V, P> where P: SharedPointerKind {}
 
 #[cfg(feature = "serde")]
 pub mod serde {

src/map/red_black_tree_map/mod.rs

@@ -159,8 +159,8 @@ where
         Node { entry: SharedPointer::new(entry), color: Color::Black, left: None, right: None }
     }
 
-    fn borrow(node: &Option<SharedPointer<Node<K, V, P>, P>>) -> Option<&Node<K, V, P>> {
-        node.as_ref().map(Borrow::borrow)
+    fn borrow(node: Option<&SharedPointer<Node<K, V, P>, P>>) -> Option<&Node<K, V, P>> {
+        node.map(Borrow::borrow)
     }
 
     fn left_color(&self) -> Option<Color> {
@@ -990,7 +990,7 @@ where
     }
 }
 
-impl<'a, K, Q: ?Sized, V, P> Index<&'a Q> for RedBlackTreeMap<K, V, P>
+impl<K, Q: ?Sized, V, P> Index<&Q> for RedBlackTreeMap<K, V, P>
 where
     K: Ord + Borrow<Q>,
     Q: Ord,
@@ -1227,7 +1227,7 @@ mod iter_utils {
             Q: Ord + ?Sized,
         {
             let child = self.stack.last().and_then(|node| {
-                let c = if self.backwards { &node.right } else { &node.left };
+                let c = if self.backwards { node.right.as_ref() } else { node.left.as_ref() };
                 Node::borrow(c)
             });
 
@@ -1284,7 +1284,7 @@ mod iter_utils {
             Q: Ord + ?Sized,
         {
             if let Some(node) = self.stack.pop() {
-                let child = if self.backwards { &node.left } else { &node.right };
+                let child = if self.backwards { node.left.as_ref() } else { node.right.as_ref() };
 
                 if let Some(c) = Node::borrow(child) {
                     self.stack.push(c);
@@ -1324,7 +1324,7 @@ where
     size: usize,
 }
 
-impl<'a, K, V, P> IterPtr<'a, K, V, P>
+impl<K, V, P> IterPtr<'_, K, V, P>
 where
     K: Ord,
     P: SharedPointerKind,
@@ -1370,7 +1370,7 @@ where
     }
 }
 
-impl<'a, K: Ord, V, P> ExactSizeIterator for IterPtr<'a, K, V, P> where P: SharedPointerKind {}
+impl<K: Ord, V, P> ExactSizeIterator for IterPtr<'_, K, V, P> where P: SharedPointerKind {}
 
 #[derive(Debug)]
 pub struct RangeIterPtr<'a, K, V, RB, Q: ?Sized, P>
@@ -1393,7 +1393,7 @@ where
     RB: RangeBounds<Q>,
     P: SharedPointerKind,
 {
-    fn new(map: &'a RedBlackTreeMap<K, V, P>, range: RB) -> RangeIterPtr<'_, K, V, RB, Q, P> {
+    fn new(map: &'a RedBlackTreeMap<K, V, P>, range: RB) -> RangeIterPtr<'a, K, V, RB, Q, P> {
         RangeIterPtr { map, stack_forward: None, stack_backward: None, range, _q: PhantomData }
     }
 

src/queue/mod.rs

@@ -316,7 +316,7 @@ where
     Initialized { vec: Vec<&'a SharedPointer<T, P>>, current: Option<usize> },
 }
 
-impl<'a, T, P> LazilyReversedListIter<'a, T, P>
+impl<T, P> LazilyReversedListIter<'_, T, P>
 where
     P: SharedPointerKind,
 {
@@ -374,7 +374,7 @@ where
     }
 }
 
-impl<'a, T, P> ExactSizeIterator for LazilyReversedListIter<'a, T, P> where P: SharedPointerKind {}
+impl<T, P> ExactSizeIterator for LazilyReversedListIter<'_, T, P> where P: SharedPointerKind {}
 
 #[cfg(feature = "serde")]
 pub mod serde {

src/vector/mod.rs

@@ -864,7 +864,7 @@ where
     }
 }
 
-impl<'a, T, P> ExactSizeIterator for IterPtr<'a, T, P> where P: SharedPointerKind {}
+impl<T, P> ExactSizeIterator for IterPtr<'_, T, P> where P: SharedPointerKind {}
 
 #[cfg(feature = "serde")]
 pub mod serde {