Re: add_dependency assert problem

Try this: Define a virtual destructor in class base. It can be trivial: that
is, ~base() {}


On Wed, Aug 17, 2011 at 5:22 AM, 锋 <[email protected]> wrote:

> 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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-- 
Ryan Pavlik
HCI Graduate Student
Virtual Reality Applications Center
Iowa State University

[email protected]
http://academic.cleardefinition.com

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