pub enum T {
    T1(()),
    T2(())
}

pub enum V {
    V1(isize),
    V2(bool)
}

fn main() {
    match (T::T1(()), V::V2(true)) {
    //~^ ERROR non-exhaustive patterns: `(T1(()), V2(_))` not covered
        (T::T1(()), V::V1(i)) => (),
        (T::T2(()), V::V2(b)) => ()
    }
}