From: Patrik Sundberg <patrik.sundberg@...>
Date: 2009-11-12T03:51:35+09:00
Subject: Separate code space/sandbox?

Hi,

I'm interested in figuring out a way to get a separate scope. I do not
need any other traditional sandbox features, i.e. any code goes, I
just want code evaluated in the scope to no affect the parent scope
(at all). Example illustrating what I am after:

a = 10
SeparatedScope.new do
 a = a + 1
 p a
end
p a

yielding:
11
10

I'd like it to have the same initialization/separation also for
instance variables and even global variables if possible.

Is something like that already available? If not, any good ideas for
how to implement it?

I did have a quick look at sandbox by _why, seems may do what I want
but not so keen on the interpreter patching etc so looking for
opportunities.

Regards,
Patrik
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