Rust: How do you implement Deref and DerefMut?

1use std::ops::{Deref, DerefMut};
2
3struct MyBox<T>(T);
4
5impl<T> Deref for MyBox<T> {
6    type Target = T;
7
8    fn deref(&self) -> &T {
9        &self.0
10    }
11}
12
13impl<T> DerefMut for MyBox<T> {
14    fn deref_mut(&mut self) -> &mut T {
15        &mut self.0
16    }
17}

1fn greet(name: &str) {
2    println!("Hello, {}!", name);
3}
4
5let name = MyBox::new(String::from("Alice"));
6greet(&name);  // MyBox<String> -> String -> str