Issue using Union with empty struct

[jc211]

enum someenum
{
    A,
    B,
    C
};

@final
struct APayload {
    string dummy1;
    string dummy2;
};

@final 
struct NoPayload {
};

@final
union Foo switch(someenum) {
    case A:
        APayload a_payload;
    case B:
    case C:
        NoPayload empty_payload;
};

The above produces BAD PARAMTER error when used in a topic.

[dpotman]

Thanks for reporting! The type meta-data validator was rejecting empty structs. I've created a pull request that fixes the issue.