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On Fri, Jan 15, 2010 at 12:30 AM, David Given <> wrote:
> Actually, what I'd really like is a syntactic construction indicating
> that a particular lexical scope has *no* environment and any use of
> globals is therefore an error and should error out at compile time.
> local a = 1
> in nil do
>  a = 2 -- works
>  b = 3 -- fails at compile time!
> end

Couldn't nil conceivably have __index and __newindex metamethods at
run time, and therefore this would *have* to compile?