#zig build-obj {
--name test -fno-emit-bin
-Mroot=test.zig
#}

#write test.zig {
const Letter = enum {
    A,
    B,
    C,
};
const Payload = union(Letter) {
    A: i32,
    B: f64,
};
export fn entry() usize {
    return @sizeOf(Payload);
}
#}
#update
#check errors {
test.zig:6:17: error: enum field 'C' missing from union
test.zig:4:5: note: enum field here
#}
