| // Copyright 2015 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. |
| |
| pub struct Registry<'a> { |
| listener: &'a mut (), |
| } |
| |
| pub struct Listener<'a> { |
| pub announce: Option<Box<FnMut(&mut Registry) + 'a>>, |
| pub remove: Option<Box<FnMut(&mut Registry) + 'a>>, |
| } |
| |
| impl<'a> Drop for Registry<'a> { |
| fn drop(&mut self) {} |
| } |
| |
| fn main() { |
| let mut registry_listener = Listener { |
| announce: None, |
| remove: None, |
| }; |
| } |
