Re: Lua 5.2 and in-do-end
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- Subject: Re: Lua 5.2 and in-do-end
- From: Edgar Toernig <froese@...>
- Date: 2010年1月25日 20:44:57 +0100
Mark Hamburg wrote:
>
> in pushenv( t ) do
IMHO, pushenv should be the default behaviour of in-do-end.
In other words, in-do-end should nest. I think, that would
be the most common use and when handled by the VM, it won't
cost a memory allocation for each in-do-end.
Of course, there has to be a method to tell in-do-env that
searching should not go further up, i.e. a function 'sandbox'
that inhibits further search:
a=1
in sandbox { pr = print, b=2 } do
pr(a,b,c) --> nil 2 nil
in { c=3 } do
pr(a,b,c) --> nil 2 3
end
end
Ciao, ET.