macro_rules! asi {
    ($($stmts:stmt)*) => {
        $($stmts);*
    };
}

fn main() {
    asi! {
        let x = 5 if x > 2 { println!("Hallo {}", x) } if x <= 2 { unreachable!() } if x % 2 == 1 { println!("Me even :D") }
    }
}