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- Subject: Re: Variable names
- From: David Given <dg@...>
- Date: Wed, 4 Aug 2004 14:02:02 +0100
On Wednesday 04 August 2004 13:46, Andreas Falkenhahn wrote:
[...]
> is it possible for a Lua function (in C) to find out the names of the
> variables that were passed? e.g.
>
> myfunc(a, b, c)
>
> I can get the values of the variables using luaL_checknumber()
> but is it also possible to get the names of the variables that
> were passed? i.e. the strings "a", "b" and "c"
I doubt it; remember that local variables don't have names once they've been
passed, and in fact there might not even be any variables. The user may have
done:
myfunc(1, 2, 3)
or
myfunc()
...instead.
If you really need to do this kind of thing, I suspect that your only option
is to use the debug library, look at your caller's stack frame, and then use
undocumented internal nastiness to examine the byte code directly.
I suspect that the real answer to your question is 'You don't want to do
that.' What are you trying to do?
--
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| dg@cowlark.com | thinking." "*No-one* likes the thought of hearing
| (dg@tao-group.com) | what you're thinking." --- Firefly, _Objects in
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