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- Subject: Re: liberality of keys
- From: Luiz Henrique de Figueiredo <lhf@...>
- Date: Sun, 27 May 2012 14:23:22 -0300
> In Lua 5.2 there is nothing to stop one giving _ENV keys which
> cannot be identifiers;
Nor in any version in Lua. Even when globals were not stored in a Lua
table this was already true.
> for example
> _ENV[_ENV] = {_ENV = _ENV}
What does that do?
> But are there any circumstances in which such licence is useful?
My arithmetic expression library ae caches whole expressions as
global variables to avoid recompiling them.
