RE: Problems with lua_getstack

["Curt Carpenter" <curtc@...>]

This is with 4.1 work 4.

-----Original Message-----
From: Curt Carpenter [mailto:curtc@microsoft.com] 
Sent: Friday, May 31, 2002 12:00 PM
To: Multiple recipients of list
Subject: Problems with lua_getstack


I am attempting to call lua_getstack in an error hook. I have a simple
function that I call, something like this:

function myerror()
    notafunction()
end

The error hook fires as expected, and the message tells me exactly what
I would expect: "attempt to call global `notafunction' (a nil value)".
So far so good. 

But now I want to get info about the function, so I have a while
(lua_getstack(l, level, &ar)) loop. Problem is, even when level is 0,
lua_getstack returns 0. I was wondering whether the line in lua_getstack
  if (L->ci - L->base_ci <= level) status = 0;  /* there is no such
level */ was supposed to have a < instead of <=. But that doesn't appear
to be the case since the subsequent call to lua_getinfo errors out
("value for `lua_getinfo' is not a function").

Thanks,

Curt