1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 #![allow(unknown_features)]
12 #![feature(box_syntax)]
14 use std::cell::RefCell;
16 use std::num::ToPrimitive;
18 #[derive(PartialEq, Show)]
25 assert_eq!(Rc::new(5u).to_uint(), Some(5));
26 assert_eq!((box &box &Rc::new(box box &box 5u)).to_uint(), Some(5));
27 let point = Rc::new(Point {x: 2, y: 4});
28 assert_eq!(point.x, 2);
29 assert_eq!(point.y, 4);
31 let i = Rc::new(RefCell::new(2i));
32 let i_value = *i.borrow();
34 assert_eq!((i_value, *i.borrow()), (2, 5));
36 let s = Rc::new("foo".to_string());
37 assert_eq!(s.as_slice(), "foo");
39 let mut_s = Rc::new(RefCell::new(String::from_str("foo")));
40 mut_s.borrow_mut().push_str("bar");
41 // HACK assert_eq! would panic here because it stores the LHS and RHS in two locals.
42 assert!(mut_s.borrow().as_slice() == "foobar");
43 assert!(mut_s.borrow_mut().as_slice() == "foobar");
45 let p = Rc::new(RefCell::new(Point {x: 1, y: 2}));
47 p.borrow_mut().y += 3;
48 assert_eq!(*p.borrow(), Point {x: 3, y: 5});
50 let v = Rc::new(RefCell::new([1i, 2, 3]));
51 v.borrow_mut()[0] = 3;
52 v.borrow_mut()[1] += 3;
53 assert_eq!((v.borrow()[0], v.borrow()[1], v.borrow()[2]), (3, 5, 3));