// run-pass

#[derive(PartialEq, Eq)]
pub enum Foo {
    FooA(()),
    FooB(Vec<()>),
}

impl Foo {
    const A1: Foo = Foo::FooA(());
    const A2: Foo = Self::FooA(());
    const A3: Self = Foo::FooA(());
    const A4: Self = Self::FooA(());
}

fn main() {
    let foo = Foo::FooA(());

    match foo {
        Foo::A1 => {},
        _ => {},
    }

    match foo {
        Foo::A2 => {},
        _ => {},
    }

    match foo {
        Foo::A3 => {},
        _ => {},
    }

    match foo {
        Foo::A4 => {},
        _ => {},
    }
}