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//@ run-pass
#![allow(dead_code)]
#![allow(unused_mut)]
#![allow(unused_variables)]
pub struct Registry<'a> {
listener: &'a mut (),
}
pub struct Listener<'a> {
pub announce: Option<Box<dyn FnMut(&mut Registry) + 'a>>,
pub remove: Option<Box<dyn 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,
};
}
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