Re: Gets function name from the stack

If you want the name the function was called with, here's how Lua gets
it (and how you get those really nice argument error messages in C):

/* UNTESTED */

lua_Debug ar;
if (!lua_getstack(L, 0, &ar)) /* no stack frame? */
ar.name = "?"; /* Some default ? */
else
{
lua_getinfo(L, "n", &ar);
if (ar.name == NULL)
ar.name = "?"; /* <-- PUT DEFAULT HERE */
}

I think this is slow though? So perhaps you may want to avoid it
unless it is really necessary...

Hope that helps,

--
-Patrick Donnelly

"One of the lessons of history is that nothing is often a good thing
to do and always a clever thing to say."

-Will Durant