luabind in different DLLs

Dmitry K <[email protected]>
Newsgroups gmane.comp.lang.lua.bind.user
Message-ID <[email protected]>
Hi there!
I'm working on a component system, where components may be added via DLLs.
However I have some problems registering two different modules in different
DLLs.
Let me explain.
I have a base class called ComponentFactory

class ComponentFactory{
public:
virtual ~ComponentFactory(){}
};

(un-needed details omitted)
This one defined in DLL lets call it Main.dll
Its exported to Lua using luabind in the following way:

module(lua)[
class_<ComponentFactory>("ComponentFactory")
];

(I tried to define constructor as well via .def(constructor<>()) )

When another component is added to the system, it inherited from the
ComponentFactory and placed in different DLL. Example:
I made a DummyComponent that looks like

class DummyComponentFactory: public ComponentFactory{
public:
DummyComponentFactory():mDummy(0){}

void SetDummy(int d) { mDummy = d; }
int GetDummy() const { return mDummy; }

private:
int mDummy;
};

Which is exported to Lua using luabind as:

luabind::module(lua)[
luabind::class_<DummyComponentFactory,
ComponentFactory>("DummyComponentFactory")
.def(luabind::constructor<>())
.def("get", &DummyComponentFactory::GetDummy)
.def("set", &DummyComponentFactory::SetDummy)
];

Its compiled to a DLL called DummyComponent.dll and loaded by my Main.dll
which calls a special functions to actually export the DummyComponentFactory
to Lua.
So to sum up: after the system is initialized I have both the base class and
the inherited class exported to Lua using luabind.
Now when I execute the following Lua code:
*cf = DummyComponentFactory()*
*cf:set(10)*
I get an error:
*No matching overload found, candidates: void set(DummyComponentFactory&,
int)*
Now I googled a lot and found some guy that had the same problem (luabind
module split in different DLLs) but I cant find that topic right now >.>
He said something about typeid and that each DLL keeps its own typeid (dont
remember for sure).
I need help with this since I have to export it like this.
For the record: I'm using Lua5.1 with luabind0.9 (the luabind I compiled
myself in Visual Studio 2010).

Thanks a lot!

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