Canonicalize return types (2) fn next_back() -> Option<Self::Item>

Author: phimuemue

src/pad_tail.rs

@@ -64,7 +64,7 @@ impl<I, F> DoubleEndedIterator for PadUsing<I, F>
     where I: DoubleEndedIterator + ExactSizeIterator,
           F: FnMut(usize) -> I::Item
 {
-    fn next_back(&mut self) -> Option<I::Item> {
+    fn next_back(&mut self) -> Option<Self::Item> {
         if self.min == 0 {
             self.iter.next_back()
         } else if self.iter.len() >= self.min {

src/rciter_impl.rs

@@ -78,7 +78,7 @@ impl<I> DoubleEndedIterator for RcIter<I>
     where I: DoubleEndedIterator
 {
     #[inline]
-    fn next_back(&mut self) -> Option<I::Item> {
+    fn next_back(&mut self) -> Option<Self::Item> {
         self.rciter.borrow_mut().next_back()
     }
 }