Let's say I'm doing some metaprogramming from another class and I want 
to do something in B's full lexical class scope.

Robert Klemme wrote:
> On 01.05.2008 21:31, Ruby Talk wrote:
>> Is there some way to execute a block within a certain lexical scope?
>>
>> Let's say the scope I want is inside B:
>> module A
>>   class B
>>     # .. wanna get in here
>>   end
>> end
>>
>> And I wanted something like:
>>
>> method_returning_B_in_lexical_scope_of_A.class_eval do
>>    ...
>> end
>>
>> As most of you know 'A::B.class_eval' does not cut it, since A would 
>> not be in the nesting.
>>
>> The obvious reason I want this is to take advantage of the nesting 
>> for lookups.
>
> Why do you need it?  There *is* nested lookup already:
>
> robert@fussel ~
> $ ruby -e 'module A;X=1;class B;def x;X;end;end;end;p A::B.new.x'
> 1
>
> Cheers
>
>     robert
>
>