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struct Manager { | |
callbacks: Vec<Box<FnMut()>>, | |
} | |
impl Manager { | |
fn new() -> Manager { | |
Manager { callbacks: Vec::new() } | |
} | |
fn register(&mut self, callback: Box<FnMut()>) { | |
self.callbacks.push(callback); | |
} | |
fn call(&mut self) { | |
for callback in &mut self.callbacks { | |
callback(); | |
} | |
} | |
} | |
struct Plugin { | |
counter: u32, | |
} | |
impl Plugin { | |
fn new() -> Plugin { | |
Plugin { counter: 0 } | |
} | |
fn increment(&mut self) { | |
println!("Increment"); | |
self.counter += 1; | |
} | |
fn get(&self) -> u32 { | |
self.counter | |
} | |
} | |
fn main() { | |
use std::rc::Rc; | |
use std::cell::RefCell; | |
let mut manager = Manager::new(); | |
manager.register(Box::new(|| { | |
println!("Hello!"); | |
})); | |
manager.register(Box::new(|| { | |
println!("Hola!"); | |
})); | |
let plugin = Rc::new(RefCell::new(Plugin::new())); | |
let rc = plugin.clone(); | |
manager.register(Box::new(move || { | |
rc.borrow_mut().increment(); | |
})); | |
let rc = plugin.clone(); | |
manager.register(Box::new(move || println!("Plugin: {}", rc.borrow().get()))); | |
manager.call(); | |
manager.call(); | |
manager.call(); | |
manager.call(); | |
manager.call(); | |
} |
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