2 #![allow(unused_variables)]
3 #![allow(stable_features)]
5 use std::cell::RefCell;
8 #[derive(PartialEq, Debug)]
15 let box_5: Box<_> = Box::new(5_usize);
16 let point = Rc::new(Point {x: 2, y: 4});
17 assert_eq!(point.x, 2);
18 assert_eq!(point.y, 4);
20 let i = Rc::new(RefCell::new(2));
21 let i_value = *i.borrow();
23 assert_eq!((i_value, *i.borrow()), (2, 5));
25 let s = Rc::new("foo".to_string());
26 assert_eq!(&**s, "foo");
28 let mut_s = Rc::new(RefCell::new(String::from("foo")));
29 mut_s.borrow_mut().push_str("bar");
30 // HACK assert_eq! would panic here because it stores the LHS and RHS in two locals.
31 assert_eq!(&**mut_s.borrow(), "foobar");
32 assert_eq!(&**mut_s.borrow_mut(), "foobar");
34 let p = Rc::new(RefCell::new(Point {x: 1, y: 2}));
36 p.borrow_mut().y += 3;
37 assert_eq!(*p.borrow(), Point {x: 3, y: 5});
39 let v = Rc::new(RefCell::new([1, 2, 3]));
40 v.borrow_mut()[0] = 3;
41 v.borrow_mut()[1] += 3;
42 assert_eq!((v.borrow()[0], v.borrow()[1], v.borrow()[2]), (3, 5, 3));