pub struct Person {}

// in Rust, destructors are implmented using the Drop trait
impl Drop for Person {
    fn drop(&mut self) {
        println!("ciao");
    }
}

// implement the drop function of the standard library
pub fn drop<T>(x: T) { // take ownership of an object
    // nothing here
} // end of scope: automatic deallocation

fn trigger_a_destructor() {
    let p = Person {}; // create an object
} // end of scope: automatic deallocation (will print "ciao")