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// run-pass
#![allow(non_camel_case_types)]
use std::cell::Cell;
#[derive(Debug)]
struct r<'a> {
i: &'a Cell<isize>,
}
impl<'a> Drop for r<'a> {
fn drop(&mut self) {
self.i.set(self.i.get() + 1);
}
}
fn r(i: &Cell<isize>) -> r {
r {
i: i
}
}
pub fn main() {
let i = &Cell::new(0);
// Even though these look like copies, they are guaranteed not to be
{
let a = r(i);
let b = (a, 10);
let (c, _d) = b;
println!("{:?}", c);
}
assert_eq!(i.get(), 1);
}
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