anytraitobject.rs

use std::any::{Any,AnyRefExt};

trait Object {
    fn as_any<'a>(&'a self) -> &'a Any {
        self as &Any
    }
}

impl Object for uint {}
impl Object for &'static str {}


fn main() {
    let n: &Object = &3u;
    let m: &uint = n.as_any().as_ref().unwrap();
    println!("{}", m);

    let s: &Object = &("foo");
    let r: &&'static str = s.as_any().as_ref().unwrap();
    println!("{}", r);
}