ManualDrop

manual_drop.rs

use std::ops::{Drop, Deref};

#[derive(Debug)]
struct ManualDrop<T>(*mut T);

impl<T> ManualDrop<T> {
    pub fn new(data: T) -> ManualDrop<T> {
        Self(Box::into_raw(Box::new(data)))
    }
}

impl<T> Deref for ManualDrop<T> {
    type Target = T;
    
    fn deref(&self) -> &Self::Target {
        unsafe { &*self.0 }
    }
}