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Rust: Change reference type and Deref back

use std::ops::Deref;

#[derive(Debug)]
struct S {
    i: [u8]
}

impl S {
    fn from_bytes(bytes: &[u8]) -> &S {
        unsafe { &*((bytes as *const [u8]) as *const S)}
        
    }
    
    fn as_bytes(&self) -> &[u8] {
        //unsafe { &*((self as *const S) as *const [u8])}
        self
    }
}

impl Deref for S {
    type Target = [u8];
    
    fn deref(&self) -> &[u8] {
        &self.i
    }
}

fn main() {
    let b = "Host: ".as_bytes();
 
    let s = S::from_bytes(b);   
    
    let c: &[u8] = s;
 
    println!("{:?}", s);
    println!("{:?}", s.as_bytes());
    println!("{:?}", c);
}