lua / luabind - Add and overwrite class methods through lua

I'm using lua 5.2.2 with luabind 0.9.

I'd like to be able to add additional class-methods through lua for any classes that I've bound in c++, but I'm unsure how to do it.

The problem is that luabind uses a function as the __index-metamethod for any bound classes instead of a table, so I don't see a way to access the class-methods at all.

e.g., I'm binding my classes like this:

Code:

---

luabind::module(lua)
[
    luabind::class_<testClass>("TestClass")
    .def(luabind::constructor<>())
    .def("TestFunc",&TestFunc)
];

---

What I essentially want to do is to add a lua-function to the list of methods for this class, and be able to overwrite existing ones:

Code:

---

local t = tableOfClassMethods
local r = t.TestFunc -- Reference to the c++-function we've bound
t.SomeFunction = function(o) end -- New function for all objects of this class
t.TestFunc = function(o) end -- Should overwrite the c++-function of the same name

---

Any help would be appreciated.