1 // Copyright 2012 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.
13 add(&'a ast<'a>, &'a ast<'a>)
19 let z = ast::add(&x, &y);
23 fn compute(x: &ast) -> uint {
26 ast::add(x, y) => { compute(x) + compute(y) }
30 fn map_nums<'a,'b, F>(x: &ast, f: &mut F) -> &'a ast<'b> where F: FnMut(uint) -> uint {
33 return &ast::num((*f)(x)); //~ ERROR borrowed value does not live long enough
36 let m_x = map_nums(x, f);
37 let m_y = map_nums(y, f);
38 return &ast::add(m_x, m_y); //~ ERROR borrowed value does not live long enough