Re: [ANN] Lua 5.2.0 (work4) now available

[steve donovan <steve.j.donovan@...>]

On Tue, Aug 3, 2010 at 7:57 AM, Geoff Leyland <geoff_leyland@fastmail.fm> wrote:
> Bytecode equivalence aside, couldn't you achieve this with:
>
> local _ENV = setmetatable({}, { __index = _G})  -- or is that __index=_ENV now?
> function foo() bar() end
> function bar() print'!' end
> return setmetatable(_ENV, nil)

This wouldn't work, because if M.bar() is called later, the
environment will have been altered and print will not be resolved.