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// run-pass
#![allow(unused_variables)]
#![allow(stable_features)]
use std::cell::RefCell;
use std::rc::Rc;
#[derive(PartialEq, Debug)]
struct Point {
x: isize,
y: isize
}
pub fn main() {
let box_5: Box<_> = Box::new(5_usize);
let point = Rc::new(Point {x: 2, y: 4});
assert_eq!(point.x, 2);
assert_eq!(point.y, 4);
let i = Rc::new(RefCell::new(2));
let i_value = *i.borrow();
*i.borrow_mut() = 5;
assert_eq!((i_value, *i.borrow()), (2, 5));
let s = Rc::new("foo".to_string());
assert_eq!(&**s, "foo");
let mut_s = Rc::new(RefCell::new(String::from("foo")));
mut_s.borrow_mut().push_str("bar");
// HACK assert_eq! would panic here because it stores the LHS and RHS in two locals.
assert_eq!(&**mut_s.borrow(), "foobar");
assert_eq!(&**mut_s.borrow_mut(), "foobar");
let p = Rc::new(RefCell::new(Point {x: 1, y: 2}));
p.borrow_mut().x = 3;
p.borrow_mut().y += 3;
assert_eq!(*p.borrow(), Point {x: 3, y: 5});
let v = Rc::new(RefCell::new([1, 2, 3]));
v.borrow_mut()[0] = 3;
v.borrow_mut()[1] += 3;
assert_eq!((v.borrow()[0], v.borrow()[1], v.borrow()[2]), (3, 5, 3));
}
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