From: Roger Pack <rogerpack2005@...>
Date: 2009-12-20T12:09:32+09:00
Subject: Re: special cased?


> Class variables are a very strange beast with bizarre semantics. I would 
> avoid them if I were you.

Yeah they must be special cased so that beginning users can use them 
with abandon and it will "just work."

Interesting.

in
class A
 @@a = 3
end

class B < A
 def go
   @@a
 end
end

in B.new.go => 3...where is @@a stored?...it's not in B...it's not in 
A's nearest ancestor, which is "Object"...it's special cased somehow?

Roughly paraphrasing a quote I heard once...
"after using ruby for 5 years, it is still surprising to me" (no offence 
intended, of course :)
Cheers.
-r
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