On Dec 23, 2007 9:21 AM, klaas.holwerda <[EMAIL PROTECTED]> wrote:
> Hi John,
>
> I think i found the problem, it seems one can have not two pointers to
> the same location.
> The base class of MaskprocLuaWrapper has the pointer down here called
> a2dLuaWP.
> It has of course the same value as the pointer in the derived class. But
> in the derived class it is called a2dMaskProc.
> No if i outcoment the first %define_pointer a2dLuaWP, all is fine. But
> if not i get the assertion.
>
> And i think the assertion at this spot is not a coincidence, if i
> look at the name.
>
> luaO_rawequalObj(const lua_TValue * 0x4d678191, const lua_TValue * 0x02005698)
> line 73 + 6 bytes
>
> Still this should not be a problem (at least if %delete means what i thought
> it meant).
> Maybe to make this work properly we need some smart pointer??
Nothing should be deleted at initialization nor should the garbage
collector run.
> So in short i have a global pointer to a command interpreter in a library,
> and in my application the derived class has a global pointer to the same (but
> derived class).
> And both those pointer i like to wrap.
I had actually changed code to make this possible, before you could
only have a pointer to C++ be one type, say a wxWindow, but if a
function returns it as a wxEvtHandler it'd swap all the references to
the object to a wxEvtHandler from being a wxWindow.
> What do you think?
I tried adding an extra pointer for wxRED, which I know is not exactly
the same since it sounds like you're casting the same object to two
types, but at least this works.
%class wxColour ...
%rename wxRED %define_pointer wxLua_wxRED
%rename wxREDA %define_pointer wxLua_wxRED
Could you update to the newest CVS, regenerate your bindings and try again.
I assume it will still fail and I'm guessing in this function. Try
putting some statements like this into it for debugging.
bool LUACALL wxluaT_pushuserdatatype(lua_State* L, const void
*obj_ptr, int wxl_type, bool track, bool allow_NULL)
{
...
wxPrintf(wxT("pushuserdatatype1 %p %p pushing %p type %d\n"),
a2dLuaWP, a2dMaskProc, obj_ptr, wxl_type);
if (wxluaO_istrackedweakobject(L, (void*)obj_ptr, wxl_type, true))
return true;
wxPrintf(wxT("pushuserdatatype2 %p %p pushing %p type %d\n"),
a2dLuaWP, a2dMaskProc, obj_ptr, wxl_type);
Then if it fails the second time it was pushed I'd guess it was inside
of wxluaO_istrackedweakobject and see where it fails there.
Thanks for looking into this, I'd really like this sort of stuff working,
John
> //-------------------- first binding module
> luabind.i file
>
> %class %delete %noclassinfo a2dLuaWrapper, a2dCommandLanguageWrapper
> //%define_pointer a2dLuaWP
> a2dLuaWrapper( a2dCentralCanvasCommandProcessor* commandProcessor )
> ...........................
> %endclass
>
> //-------------------- second binding module
> maskproc.i
>
> %class %delete %noclassinfo MaskprocLuaWrapper, a2dLuaWrapper
> MaskprocLuaWrapper( a2dCentralEditorCommandProcessor*
> commandProcessor )
> bool Exit()
>
> %define_pointer a2dMaskProc
>
> %endclass
>
>
> John Labenski wrote:
> > On Dec 21, 2007 10:31 AM, Klaas Holwerda <[EMAIL PROTECTED]> wrote:
> >
> >> If i remove "%define_pointer a2dMaskProc", the RegisterBindings() fase is
> >> fine.
> >> The function a2dGetMaskProc() return the same pointer, and i tested a few
> >> script
> >>
>
>
>
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