add_dependency assert problem

hi, all:

i get *assertion* error in *object_rep*.cpp -- "assert(m_dependency_cnt <
sizeof(object_rep));" when i use luabind like this example:

----------------------

class base
{
public:
    virtual void print() {}             // if not use 'virtual', the
m_dependency_cnt will not bigger than sizeof(object_rep)
};

class derived : public base {};
class derived_wrap : public derived, public wrap_base {};

class holder
{
public:
    base* member;

    holder(base* p) : member(p) {}
};

module(L)
[
    class_<base>("base")
        .def(constructor<>())
        .def("print", &base::print),

    class_<derived, derived_wrap, base>("derived")    // i want the
"derived" in lua can be derived and also have base class "print" function
        .def(constructor<>()),

    class_<holder>("holder")
        .def(constructor<base*>())
        .def_readonly("member", &holder::member)
];

luaL_dostring(L,
    "a = derived() "
    "b = holder(a) "
    "for i = 1, 100 do "
    "    b.member:print() "
    "end "
);

----------------------

any ideas? thanks in advance

onlyfeng
[email protected]

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