Re: Simple C++ wrapper

[Andre de Leiradella <aleirade@...>]

I've done it once for a project but abandoned it during a major rewrite 
of the application. The problem was that I was having to consult the 
documentation (err..., the source code) much more that I used to consult 
the Lua docs. I ended up with just a couple of functions, one being to 
lua_pcall and get a nice stacktrace if things go wrong for example.

Your example is exactly like what I was trying to do, and every time I 
had to call State.getTable I wondered what the default argument values 
were and if the method would cause any side effects besides calling 
lua_gettable.

So from my experience, stick to the Lua API if you're already familiar 
with it, and write a couple of functions on top of the API to make your 
life easier.

Cheers,

Andre

> Hello,
>
> I'd like to wrap the Lua API in a C++ class to take advantage of
> overloading and default arguments, etc. I looked at Paolo Capriotti's
> library but it seems to be oriented for using C++ objects on the stack.
> I don't need that so much as just a more convenient way to use Lua.
>
> I think something like this would be favorable:
>
> namespace luaxx
> {
>         class State
>         {
>                 void getTable(int index = -2)
>                         { lua_gettable(m_L, index); };
>                 void getTable(int index = -2, int key = -1)
>                 {
>                         if (index < 0 && index > LUA_REGISTRYINDEX)
>                                 index -= 1;
>                         push(key);
>                         lua_gettable(m_L, index);
>                 };
>         };
> }
>
> Does anyone have a library already made?
>
> -- tom
> telliamed@whoopdedo.org