Call a Lua method on instance from C++

[I couldn't find the search function for this mailing list on
sourceforge, sorry if this has already been asked]

Hello,

I am trying to conceptualize some things with luabind and I would like
to do something specific but there is not much information on how to
achieve that.

What I want to do is be able to call from C++ a method that was
created on an instance of an object in Lua.

e = Entity("Hello")

function e:update()
    print("update Hello")
end

>From the C++ side, I also have an update() function on the class
Entity and I would like to call the Lua defined method inside it.

I tried a couple of things like making a wrapper with base_wrap but I
couldn't do it without creating another class, or also something like
creating a self object directly from the this pointer :

void update()
{
    printf("Entity::update()\n");

    object self(L, *this);

    int t = type(gettable(self, "update"));
    printf("type %i\n", t);
    if (t == LUA_TFUNCTION)
        call_member<void>(self, "update");
}

Well that didn't work (obviously) so I ask my question here because
that would be a great technique for events. Thanks!

Remi Gillig.

------------------------------------------------------------------------------
This SF.net email is sponsored by 

Make an app they can't live without
Enter the BlackBerry Developer Challenge
http://p.sf.net/sfu/RIM-dev2dev