| //@ run-pass |
| |
| // Issue #62007: assigning over a deref projection of a box (in this |
| // case, `*list = n;`) should be able to kill all borrows of `*list`, |
| // so that `*list` can be borrowed on the next iteration through the |
| // loop. |
| |
| #![allow(dead_code)] |
| |
| struct List<T> { |
| value: T, |
| next: Option<Box<List<T>>>, |
| } |
| |
| fn to_refs<T>(mut list: Box<&mut List<T>>) -> Vec<&mut T> { |
| let mut result = vec![]; |
| loop { |
| result.push(&mut list.value); |
| if let Some(n) = list.next.as_mut() { |
| *list = n; |
| } else { |
| return result; |
| } |
| } |
| } |
| |
| fn main() {} |
