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- Subject: Re: metatables for strings?
- From: Rena <hyperhacker@...>
- Date: Sun, 3 May 2015 12:42:27 -0400
On Sun, May 3, 2015 at 12:39 PM, Dirk Laurie <dirk.laurie@gmail.com> wrote:
> 2015-05-03 18:33 GMT+02:00 Nagaev Boris <bnagaev@gmail.com>:
>
>> PS. I still like syntax "hello":sub(1, 4)
> Didn't somebody make a patch to allow that?
>
>> PS 2. Why no individual metatables for light userdata?
> They would no longer be light. A light userdata is like a number:
> it's just a pointer.
>
You can "fake" individual metatables for light userdata, by keeping a
reference to each userdata in a weak table, and looking up their
individual methods in that table. Only trouble is it requires all code
using light userdata in your application to cooperate.
--
Sent from my Game Boy.
