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[rustc.git] / src / test / ui / structs-enums / small-enums-with-fields.rs

// run-pass
use std::mem::size_of;

#[derive(PartialEq, Debug)]
enum Either<T, U> { Left(T), Right(U) }

macro_rules! check {
    ($t:ty, $sz:expr, $($e:expr, $s:expr),*) => {{
        assert_eq!(size_of::<$t>(), $sz);
        $({
            static S: $t = $e;
            let v: $t = $e;
            assert_eq!(S, v);
            assert_eq!(format!("{:?}", v), $s);
            assert_eq!(format!("{:?}", S), $s);
        });*
    }}
}

pub fn main() {
    check!(Option<u8>, 2,
           None, "None",
           Some(129), "Some(129)");
    check!(Option<i16>, 4,
           None, "None",
           Some(-20000), "Some(-20000)");
    check!(Either<u8, i8>, 2,
           Either::Left(132), "Left(132)",
           Either::Right(-32), "Right(-32)");
    check!(Either<u8, i16>, 4,
           Either::Left(132), "Left(132)",
           Either::Right(-20000), "Right(-20000)");
}