| // Copyright 2013 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. |
| |
| |
| trait Trait<T> { |
| fn f(&self, x: T); |
| } |
| |
| struct Struct { |
| x: int, |
| y: int, |
| } |
| |
| impl Trait<&'static str> for Struct { |
| fn f(&self, x: &'static str) { |
| println!("Hi, {}!", x); |
| } |
| } |
| |
| pub fn main() { |
| let a = Struct { x: 1, y: 2 }; |
| let b: Box<Trait<&'static str>> = box a; |
| b.f("Mary"); |
| let c: &Trait<&'static str> = &a; |
| c.f("Joe"); |
| } |
| |
