140     prev: *mut ListLinksFields,  field
170                 prev: ptr::null_mut(),  in new()
228                     prev: ptr::null_mut(),  in new()
283                 (*item).prev = item;  in insert_inner()
289             let prev = unsafe { (*next).prev };  in insert_inner()  localVariable
295                 (*item).prev = prev;  in insert_inner()
296                 (*prev).next = item;  in insert_inner()
297                 (*next).prev = item;  in insert_inner()
330         let last = unsafe { (*self.first).prev };  in pop_back()
365         let ListLinksFields { next, prev } = unsafe { *item };  in remove()
367         debug_assert_eq!(next.is_null(), prev.is_null());  in remove()
377                 debug_assert_eq!(item, (*next).prev);  in remove()
378                 item = (*next).prev;  in remove()
383             Some(unsafe { self.remove_internal_inner(item, next, prev) })  in remove()
397         let ListLinksFields { next, prev } = unsafe { *item };  in remove_internal()
399         unsafe { self.remove_internal_inner(item, next, prev) }  in remove_internal()
412         prev: *mut ListLinksFields,  in remove_internal_inner()
424             (*next).prev = prev;  in remove_internal_inner()
425             (*prev).next = next;  in remove_internal_inner()
430             (*item).prev = ptr::null_mut();  in remove_internal_inner()
445             self.first = unsafe { (*prev).next };  in remove_internal_inner()
469             let other_last = unsafe { (*other_first).prev };  in push_all_back()
472             let self_last = unsafe { (*self_first).prev };  in push_all_back()
478                 (*self_first).prev = other_last;  in push_all_back()
481                 (*other_first).prev = self_last;  in push_all_back()
746         unsafe { (*next).prev }  in prev_ptr()
766         let prev = self.prev_ptr();  in peek_prev()  localVariable
768         if prev.is_null() {  in peek_prev()
776             ptr: prev,  in peek_prev()