[xsd-users] cxx-parser: In typemap file, C++ types are sometimes incorrectly namespaced

[Boris Kolpackov]

Hi Jeroen,

Jeroen N. Witmond [Bahco] <jnw at xs4all.nl> writes:

> File mixed.map contains
>   namespace "http://metadox.xs4all.nl/mixed" mixed
>   {
>     include <gmpxx.h>;
>     binop ::mpz_class;
>     operator_t action;
>   }
> This results in compilation error: expected unqualified-id before '::'
> token, for instance on line "virtual mixed::::mpz_class post_binop () =
> 0;" in the generated pskel.hxx file.

The original idea of the C++ namespace for the XML Schema namespace was
to add it to every type in the namespace to save typing. There are a few
situations where this is not desirable. One is a fully-qualified name as
in your case. Another case is the use of fundamental types such as int,
long, etc. I was thinking of fixing this but then realized that it gets
a lot more complex when we consider things like const:

binop "const ::mpz_class*";
operator_t "const action*";
foo "const unsigned long*";

In other words we would need to parse the type in order to figure
out whether and where to add the namespace. I will need to think
some more about other possible complications before attempting to
fix this.

Thanks for reporting this!

Boris