From: Ken Bloom [mailto:kbloom / gmail.com]
Sent: Monday, February 12, 2007 3:10 AM
>On Mon, 12 Feb 2007 09:02:37 +0900, Victor \"Zverok\" Shepelev wrote:
>
>> Hello all.
>>
>> During last several monthes I've worked on some library, using the latest
>> ruby1.9. Now I want to release the library to community, but first I need
>to
>> "backport" it.
>> One small problem I've stumbled upon:
>>
>> module Constants
>>   TEST = 5
>> end
>>
>> class A
>> end
>>
>> a = A.new
>>
>> a.instance_eval{
>>   extend Constants
>>   p TEST #<== here
>> }
>>
>> At the "here" string, ruby1.9 had printed "5", but ruby 1.8.5 raises
>> NameError (uninitialized constant TEST).
>>
>> I know, the question is silly, but I can't find how to do this. (by some
>> reasons, the code should affect only one object, not entire class)
>
>class << a
>  extend Constants
>  p TEST
>end

Not exactly what I want.
I need "TEST" constant to be visible inside a.instance_eval

V.