| // 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. |
| |
| use std::cell::RefCell; |
| use std::rc::Rc; |
| |
| pub struct Callbacks { |
| callbacks: Vec<Rc<RefCell<FnMut(i32)>>>, |
| } |
| |
| impl Callbacks { |
| pub fn register<F: FnMut(i32)+'static>(&mut self, callback: F) { |
| self.callbacks.push(Rc::new(RefCell::new(callback))); |
| } |
| } |
| |
| fn main() {} |
