//@ build-pass
#![allow(dead_code)]
#![allow(non_camel_case_types)]

struct socket {
    sock: isize,
}

impl Drop for socket {
    fn drop(&mut self) {}
}

impl socket {
    pub fn set_identity(&self) {
        closure(|| setsockopt_bytes(self.sock.clone()))
    }
}

fn socket() -> socket {
    socket { sock: 1 }
}

fn closure<F>(f: F)
where
    F: FnOnce(),
{
    f()
}

fn setsockopt_bytes(_sock: isize) {}

pub fn main() {}