#[derive(Debug)]
pub struct Deck<'a> {
   cards: Vec<&'a str>,
}

impl<'a> Deck<'a> {
    pub fn new(cards: Vec<&'a str>) -> Self {
        Deck { cards }
    }
    pub fn pop(&mut self) -> &str {
        self.cards.pop().unwrap()
    }
}

#[derive(Debug)]
pub struct Player<'a> {
    deck: &'a mut Deck<'a>,
}

impl<'a> Player<'a> {
    pub fn new(deck: &'a mut Deck<'a>) -> Self {
        Player { deck }
    }

    pub fn draw(&mut self) {
        self.deck.pop();
    }
}

fn main() {
    let mut deck = Deck::new(vec![]);

    let mut player = Player::new(&mut deck);

    player.draw();

    println!("{:?}", player);
}