Re: How to bind a static member variable

yes. IIRC you can just bind your class "A", then treat _G.A as a table and just add stuff to it, like the static const value. 

On 08.04.2013, at 21:21, Lorenzo Pistone <[email protected]> wrote:

> The real code does bind other things rather than only a static member. 
> So I guess I have to "reuse"the table that the class definition creates 
> (is it a table that it is being created?). So... do I just fetch that 
> with the method you proposed, and add my static member?
> 
> On 04/08/2013 09:18 PM, Tony Kostanjsek wrote:
>> if A::a is a static const, you don't really need a reference to that exact instance, but rather only the value in the correct namespace in Lua. I haven't touched luabind in a while, so treat the following more like pseudo code:
>> 
>> lua_State* L = ...
>> luabind::object _G = luabind::globals(L);
>> _G["A"] = luabind::newTable();
>> _G["A"]["a"] = luabind::object();
>> _G["A"]["a"] = A::a;
>> 
>> I must admit I forgot how to correctly implement that last assignment. Again, it's been a while.
>> Basically, what you should try is to write the luabind C++ equivalent of the following lua code:
>> 
>> _G.A = {}
>> _G.A.a = <your value>
>> 
>> hth,
>> Tony
>> 
>> 
>> On 08.04.2013, at 20:45, Ryan Pavlik <[email protected]> wrote:
>> 
>>> On Mon, Apr 8, 2013 at 6:33 AM, Lorenzo Pistone <[email protected]> wrote:
>>>     #include <luabind/luabind.hpp>
>>>     struct A{
>>>         static const A a;
>>>     };
>>>     const A A::a;
>>>     int main(){
>>>         luabind::scope sc = luabind::class_<A>("A")
>>>         .scope[luabind::def_readonly("a", &A::a)];
>>>     }
>>> 
>>> It seems as though while functions can be registered "globally" (in a namespace rather than a class member), no such provision was made for variables/data.  I've added a test here: https://github.com/rpavlik/luabind/blob/static-members/test/test_static_member.cpp  - the version committed succeeds but uncommenting the data members causes a compile failure just as you had noticed. (There is a luabind::def function that mimics the .def member of luabind::class_, but no such luabind::def_readonly...)  I'm not sure if a workaround of setting the variable would work - I've had a tough time trying to figure out how to bind references to values/data to Lua with LuaBind.
>>> 
>>> Ryan
>>> 
>>> 
>>> -- 
>>> Ryan Pavlik
>>> HCI Graduate Student
>>> Virtual Reality Applications Center
>>> Iowa State University
>>> 
>>> [email protected]
>>> http://academic.cleardefinition.com
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>> 
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> 
> 
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> the most talented Cisco Certified professionals. Visit the 
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the most talented Cisco Certified professionals. Visit the 
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