Re: [pygccxml-development] Bug in virtual function wrapping with pyplusplus

[Roman Y. <rom...@gm...>]

> > Allen Bierbaum wrote:
> > >
> > >
> > >namespace test_ns
> > >{
> > >class Grandpa
> > >{
> > >public:
> > >   virtual int gp_pure(int i) =3D 0;
> > >};
> > >
> > >class Father : public Grandpa
> > >{
> > >public:
> > >   virtual int gp_pure(int i);
> > >};
> > >
> > >class Son : public Father
> > >{
> > >public:
> > >};
> > >
> > >} // namespace test_ns

You need to check out module_creator/creator.py file:

Here is the code generated after I fixed the bug:
#include "boost/python.hpp"

#include "Classes.h"

namespace bp =3D boost::python;

struct Grandpa_wrapper : test_ns::Grandpa, bp::wrapper< test_ns::Grandpa > =
{

    Grandpa_wrapper()
    : test_ns::Grandpa()
      , bp::wrapper< test_ns::Grandpa >()
    {}

    virtual int gp_pure( int i ){
        bp::override func_gp_pure =3D this->get_override( "gp_pure" );
        return func_gp_pure( i );
    }

};

struct Father_wrapper : test_ns::Father, bp::wrapper< test_ns::Father > {

    Father_wrapper(test_ns::Father const & arg )
    : test_ns::Father( arg )
      , bp::wrapper< test_ns::Father >()
    {}

    Father_wrapper()
    : test_ns::Father()
      , bp::wrapper< test_ns::Father >()
    {}

    virtual int gp_pure( int i ) {
        if( bp::override func_gp_pure =3D this->get_override( "gp_pure" ) )
            return func_gp_pure( i );
        else
            return test_ns::Father::gp_pure( i );
    }


    virtual int default_gp_pure( int i ) {
        return test_ns::Father::gp_pure( i );
    }

};

BOOST_PYTHON_MODULE(pyplusplus){
    bp::class_< Grandpa_wrapper, boost::noncopyable >( "Grandpa" )
        .def("gp_pure"
                , bp::pure_virtual( &::test_ns::Grandpa::gp_pure )
                , ( bp::arg("i") )
                , bp::default_call_policies() );

    bp::class_< Father_wrapper, bp::bases< test_ns::Grandpa > >( "Father" )
        .def("gp_pure"
                , &::test_ns::Father::gp_pure
                , &Father_wrapper::default_gp_pure
                , ( bp::arg("i") )
                , bp::default_call_policies() );

    bp::class_< test_ns::Son, bp::bases< test_ns::Father > >( "Son" );
}

Enjoy.

--=20
Roman Yakovenko
C++ Python language binding
http://www.language-binding.net/