// run-pass use std::cell::RefCell; struct S<'a>(i32, &'a RefCell>); impl<'a> Drop for S<'a> { fn drop(&mut self) { self.1.borrow_mut().push(self.0); } } fn test(drops: &RefCell>) { let mut foo = None; match foo { None => (), _ => return, } *(&mut foo) = Some((S(0, drops), S(1, drops))); // Both S(0) and S(1) should be dropped match foo { Some((_x, _)) => {} _ => {} } } fn main() { let drops = RefCell::new(Vec::new()); test(&drops); assert_eq!(*drops.borrow(), &[0, 1]); }