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- Subject: Re: about the next version
- From: Luiz Henrique de Figueiredo <lhf@...>
- Date: Wed, 17 Apr 2002 10:17:06 -0300
>What is the scope of the "global in x" statement ? ie if some
>idiot writes a function that says "global in x" then returns, I
>am hoping if I call that function it will not alter what my current
>global scope is set to?
Like everything else in Lua (now!), scope is purely lexical. So your hopes
>Also, how do you reset globals to be truly global... something like
>global in global ?
The closest thing is "global in globals()" but the best solution is to
use do..end scopes.
>I don't really understand what the difference is, as userdata is simply an
>arbitrary 32 bit value anyway? Does this just imply the lightweight
>userdata cannot have a metatable?
Yes, lightweight userdata cannot have a metatable. They're much like numbers.
Some people were using doubles to store pointers to overcome perceived
"inefficiencies" in userdata. Lightweight userdata avoids these uglys hacks.
>Cool. Obviously the question is, when is work5 out ? :)
It would be 5.0 work0, but probably will be 5.0 alpha.