45     default fn spec_extend(&mut self, iterator: I) {  in spec_extend()
46         self.extend_trusted(iterator)  in spec_extend()
54     default fn try_spec_extend(&mut self, iterator: I) -> Result<(), TryReserveError> {  in try_spec_extend()
55         self.try_extend_trusted(iterator)  in try_spec_extend()
61     fn spec_extend(&mut self, mut iterator: IntoIter<T>) {  in spec_extend()
63             self.append_elements(iterator.as_slice() as _);  in spec_extend()
65         iterator.forget_remaining_elements();  in spec_extend()
70     fn try_spec_extend(&mut self, mut iterator: IntoIter<T>) -> Result<(), TryReserveError> {  in try_spec_extend()
72             self.try_append_elements(iterator.as_slice() as _)?;  in try_spec_extend()
74         iterator.forget_remaining_elements();  in try_spec_extend()
85     default fn spec_extend(&mut self, iterator: I) {  in spec_extend()
86         self.spec_extend(iterator.cloned())  in spec_extend()
95     default fn try_spec_extend(&mut self, iterator: I) -> Result<(), TryReserveError> {  in try_spec_extend()
96         self.try_spec_extend(iterator.cloned())  in try_spec_extend()
105     fn spec_extend(&mut self, iterator: slice::Iter<'a, T>) {  in spec_extend()
106         let slice = iterator.as_slice();  in spec_extend()
115     fn try_spec_extend(&mut self, iterator: slice::Iter<'a, T>) -> Result<(), TryReserveError> {  in try_spec_extend()
116         let slice = iterator.as_slice();  in try_spec_extend()