//@ build-pass #![allow(dead_code)] #![allow(non_camel_case_types)] //@ pretty-expanded FIXME #23616 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) where F: FnOnce() { f() } fn setsockopt_bytes(_sock: isize) { } pub fn main() {}