| // Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| |
| |
| fn region_identity(x: &usize) -> &usize { x } |
| |
| fn apply<T, F>(t: T, f: F) -> T where F: FnOnce(T) -> T { f(t) } |
| |
| fn parameterized(x: &usize) -> usize { |
| let z = apply(x, ({|y| |
| region_identity(y) |
| })); |
| *z |
| } |
| |
| pub fn main() { |
| let x = 3; |
| assert_eq!(parameterized(&x), 3); |
| } |
