Re: Lua 5.1 userdata fenv nil?

[Marc Lepage <mlepage@...>]

OK, if that's true then I can at least use a singleton for the cases in which I want it to not be there. Thanks.

On Wed, Feb 20, 2013 at 4:32 PM, Finn Wilcox <finnw@firecloudsw.co.uk> wrote:

On 20/02/2013 20:48, Marc Lepage wrote:
> A userdata can have a table set as fenv. It has a default fenv.
>
> Can I set the userdata fenv to nil? And later set it back to some table
> (empty, not the original default fenv)?
>
> Would this have any weird effects?

You cannot set the fenv of a userdata to nil.  It must always be a
table.  But an empty table is fine.