struct ND(u8);

impl Drop for ND {
    fn drop(&mut self) {
        dbg!(self.0);
    }
}

impl ND {
    fn foo(&self) -> u8 {
        self.0
    }
}

macro_rules! format2 {
    ($($arg:tt)*) => {{
        let res = std::fmt::format(core::format_args!($($arg)*));
        res
    }}
}

fn main() {
    match format2!("{}", ND(0).foo()) {
        _ => dbg!("foo"),
    };

    dbg!();

    match format!("{}", ND(0).foo()) {
        _ => dbg!("bar"),
    };
}