Re: _SELF and _SUPER
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- Subject: Re: _SELF and _SUPER
- From: Nagaev Boris <bnagaev@...>
- Date: Thu, 4 Aug 2016 22:47:31 +0300
On Thu, Aug 4, 2016 at 7:54 PM, Soni L. <fakedme@gmail.com> wrote:
> Can we get _SELF and _SUPER?
>
> local x = 1
> function f()
> local x = 2
> print(_SUPER.x) --> 1
> end
> print(f())
>
> pcall(function(x)
> if x < 0 then error() end
> if x == 0 then return end
> print(x)
> _SELF(x-1)
> end, 3) --> 3; 2; 1;
>
> For performance, they would be translated by the compiler. Passing _SUPER
> around would copy all upvalues into a table, but for simplicity changing
> this table wouldn't change upvalues (e.g. no current syntactic construct can
> create a metatable).
>
> _SELF and _SUPER would be indexable and callable.
Let me check that I understand you correctly.
_SELF would be callable and _SUPER would be indexable.
Can _SUPER be indexed with a value not known at compile time?
local xx = 1
do
print(_SUPER[string.rep("x", 2)])
end
>
> (No idea what to say next. Idk, I'm just rambling I guess .-.)
>
> --
> Disclaimer: these emails may be made public at any given time, with or
> without reason. If you don't agree with this, DO NOT REPLY.
--
Best regards,
Boris Nagaev