58     right: PutBack<Fuse<J>>,  field
70         right: put_back(b.into_iter().fuse()),  in merge_by_new()
80     right: J,  in merge_join_by()
90         right: put_back(right.into_iter().fuse()),  in merge_join_by()
115     fn right(right: R) -> Self::MergeResult;  in right()  method
119     fn merge(&mut self, left: L, right: R) -> (Option<Either<L, R>>, Self::MergeResult);  in merge()
120     fn size_hint(left: SizeHint, right: SizeHint) -> SizeHint;  in size_hint()
128     fn right(right: R) -> Self::MergeResult {  in right()  method
129         EitherOrBoth::Right(right)  in right()
131     fn merge(&mut self, left: L, right: R) -> (Option<Either<L, R>>, Self::MergeResult) {  in merge()
132         match self.0(&left, &right) {  in merge()
133             Ordering::Equal => (None, EitherOrBoth::Both(left, right)),  in merge()
134             Ordering::Less => (Some(Either::Right(right)), EitherOrBoth::Left(left)),  in merge()
135             Ordering::Greater => (Some(Either::Left(left)), EitherOrBoth::Right(right)),  in merge()
138     fn size_hint(left: SizeHint, right: SizeHint) -> SizeHint {  in size_hint()
140         let (b_lower, b_upper) = right;  in size_hint()
155     fn right(right: R) -> Self::MergeResult {  in right()  method
156         Either::Right(right)  in right()
158     fn merge(&mut self, left: L, right: R) -> (Option<Either<L, R>>, Self::MergeResult) {  in merge()
159         if self.0(&left, &right) {  in merge()
160             (Some(Either::Right(right)), Either::Left(left))  in merge()
162             (Some(Either::Left(left)), Either::Right(right))  in merge()
165     fn size_hint(left: SizeHint, right: SizeHint) -> SizeHint {  in size_hint()
167         size_hint::add(left, right)  in size_hint()
176     fn right(right: T) -> Self::MergeResult {  in right()  method
177         right  in right()
179     fn merge(&mut self, left: T, right: T) -> (Option<Either<T, T>>, Self::MergeResult) {  in merge()
180         if self(&left, &right) {  in merge()
181             (Some(Either::Right(right)), left)  in merge()
183             (Some(Either::Left(left)), right)  in merge()
186     fn size_hint(left: SizeHint, right: SizeHint) -> SizeHint {  in size_hint()
188         size_hint::add(left, right)  in size_hint()
197     fn right(right: T) -> Self::MergeResult {  in right()  method
198         right  in right()
200     fn merge(&mut self, left: T, right: T) -> (Option<Either<T, T>>, Self::MergeResult) {  in merge()
201         if left <= right {  in merge()
202             (Some(Either::Right(right)), left)  in merge()
204             (Some(Either::Left(left)), right)  in merge()
207     fn size_hint(left: SizeHint, right: SizeHint) -> SizeHint {  in size_hint()
209         size_hint::add(left, right)  in size_hint()
221     clone_fields!(left, right, cmp_fn);
231     debug_fmt_fields!(MergeBy, left, right);
243         match (self.left.next(), self.right.next()) {  in next()
246             (None, Some(right)) => Some(F::right(right)),  in next()
247             (Some(left), Some(right)) => {  in next()
248                 let (not_next, next) = self.cmp_fn.merge(left, right);  in next()
254                         self.right.put_back(r);  in next()
271         let mut right = self.right.next();  in fold()  localVariable
274             match (left, right) {  in fold()
279                         right = Some(r);  in fold()
284                         right = self.right.next();  in fold()
289                         right = self.right.next();  in fold()
298                     self.right.put_back(r);  in fold()
299                     acc = self.right.fold(acc, |acc, x| f(acc, F::right(x)));  in fold()
312         F::size_hint(self.left.size_hint(), self.right.size_hint())  in size_hint()
321             match (self.left.next(), self.right.next()) {  in nth()
324                 (None, Some(_right)) => break self.right.nth(n).map(F::right),  in nth()
325                 (Some(left), Some(right)) => {  in nth()
326                     let (not_next, _) = self.cmp_fn.merge(left, right);  in nth()
332                             self.right.put_back(r);  in nth()