Is it possible in Rust to delete an object before the end of scope?

Question

From what I understand, the compiler automatically generates code to call the destructor to delete an object when it\'s no longer needed, at the end of scope.

In som

Answer 1

The official answer is to call mem::drop:

fn do_the_thing() {
    let s = "Hello, World".to_string();
    println!("{}", s);

    drop(s);

    println!("{}", 3);
}

However, note that mem::drop is nothing special. Here is the definition in full:

pub fn drop(_x: T) { }

That's all.

Any function taking ownership of a parameter will cause this parameter to be dropped at the end of said function. From the point of view of the caller, it's an early drop :)