Make clippy happier (#72)

src/algorithms/compact.rs

@@ -44,17 +44,13 @@ where
     }
 }
 
-impl<'old, 'new, Old: ?Sized, New: ?Sized, D: DiffHook> AsRef<D>
+impl<Old: ?Sized, New: ?Sized, D: DiffHook> AsRef<D> for Compact<'_, '_, Old, New, D> {
-    for Compact<'old, 'new, Old, New, D>
-{
     fn as_ref(&self) -> &D {
         &self.d
     }
 }
 
-impl<'old, 'new, Old: ?Sized, New: ?Sized, D: DiffHook> AsMut<D>
+impl<Old: ?Sized, New: ?Sized, D: DiffHook> AsMut<D> for Compact<'_, '_, Old, New, D> {
-    for Compact<'old, 'new, Old, New, D>
-{
     fn as_mut(&mut self) -> &mut D {
         &mut self.d
     }

src/algorithms/myers.rs

@@ -388,7 +388,7 @@ fn test_deadline_reached() {
 
     struct SlowIndex<'a>(&'a [usize]);
 
-    impl<'a> Index<usize> for SlowIndex<'a> {
+    impl Index<usize> for SlowIndex<'_> {
         type Output = usize;
 
         fn index(&self, index: usize) -> &Self::Output {

src/algorithms/utils.rs

@@ -20,7 +20,7 @@ pub struct UniqueItem<'a, Idx: ?Sized> {
     index: usize,
 }
 
-impl<'a, Idx: ?Sized> UniqueItem<'a, Idx>
+impl<Idx: ?Sized> UniqueItem<'_, Idx>
 where
     Idx: Index<usize>,
 {
@@ -209,7 +209,7 @@ where
             New(&'new New),
         }
 
-        impl<'old, 'new, Old, New> Hash for Key<'old, 'new, Old, New>
+        impl<Old, New> Hash for Key<'_, '_, Old, New>
         where
             Old: Hash + ?Sized,
             New: Hash + ?Sized,
@@ -222,7 +222,7 @@ where
             }
         }
 
-        impl<'old, 'new, Old, New> PartialEq for Key<'old, 'new, Old, New>
+        impl<Old, New> PartialEq for Key<'_, '_, Old, New>
         where
             Old: Eq + ?Sized,
             New: Eq + PartialEq<Old> + ?Sized,
@@ -237,7 +237,7 @@ where
             }
         }
 
-        impl<'old, 'new, Old, New> Eq for Key<'old, 'new, Old, New>
+        impl<Old, New> Eq for Key<'_, '_, Old, New>
         where
             Old: Eq + ?Sized,
             New: Eq + PartialEq<Old> + ?Sized,

src/iter.rs

@@ -50,7 +50,7 @@ where
     }
 }
 
-impl<'lookup, Old, New, T> Iterator for ChangesIter<'lookup, Old, New, T>
+impl<Old, New, T> Iterator for ChangesIter<'_, Old, New, T>
 where
     Old: Index<usize, Output = T> + ?Sized,
     New: Index<usize, Output = T> + ?Sized,

src/text/abstraction.rs

@@ -36,7 +36,7 @@ impl DiffableStrRef for String {
     }
 }
 
-impl<'a, T: DiffableStr + ?Sized> DiffableStrRef for Cow<'a, T> {
+impl<T: DiffableStr + ?Sized> DiffableStrRef for Cow<'_, T> {
     type Output = T;
 
     fn as_diffable_str(&self) -> &T {

src/text/mod.rs

@@ -543,7 +543,7 @@ impl<'old, 'new, 'bufs, T: DiffableStr + ?Sized + 'old + 'new> TextDiff<'old, 'n
     pub fn iter_inline_changes<'slf>(
         &'slf self,
         op: &DiffOp,
-    ) -> impl Iterator<Item = InlineChange<'slf, T>> + '_
+    ) -> impl Iterator<Item = InlineChange<'slf, T>> + 'slf
     where
         'slf: 'old + 'new,
     {
@@ -558,7 +558,7 @@ impl<'old, 'new, 'bufs, T: DiffableStr + ?Sized + 'old + 'new> TextDiff<'old, 'n
         &'slf self,
         op: &DiffOp,
         deadline: Option<Instant>,
-    ) -> impl Iterator<Item = InlineChange<'slf, T>> + '_
+    ) -> impl Iterator<Item = InlineChange<'slf, T>> + 'slf
     where
         'slf: 'old + 'new,
     {

src/types.rs

@@ -489,7 +489,7 @@ mod text_additions {
         }
     }
 
-    impl<'s, T: DiffableStr + ?Sized> fmt::Display for Change<&'s T> {
+    impl<T: DiffableStr + ?Sized> fmt::Display for Change<&T> {
         fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
             write!(
                 f,

src/utils.rs

@@ -58,7 +58,7 @@ impl<'x, T: DiffableStr + ?Sized> SliceRemapper<'x, T> {
     }
 }
 
-impl<'x, T: DiffableStr + ?Sized> Index<Range<usize>> for SliceRemapper<'x, T> {
+impl<T: DiffableStr + ?Sized> Index<Range<usize>> for SliceRemapper<'_, T> {
     type Output = T;
 
     fn index(&self, range: Range<usize>) -> &Self::Output {