From: Logan Capaldo <logancapaldo@...>
Date: 2006-08-31T07:41:21+09:00
Subject: Re: Obtaining a reference to an enclosing class of a nested class


On Aug 30, 2006, at 6:10 PM, Joel VanderWerf wrote:

> Logan Capaldo wrote:
>> On Aug 30, 2006, at 4:22 PM, Joel VanderWerf wrote:
>>>
>>> However, you say the classes are anonymous. How are you getting B  
>>> under
>>> the scope of A in that case?
>>>
>> mod1 = Module.new
>> mod2 = nil
>> mod1.module_eval{ mod2 = Module.new }
>
> I don't think mod2 is nested in mod1, in any sense. There's no  
> reason for ruby to keep track of the modules that are created  
> during the execution of the block that accompanies the  
> mod1.module_eval call and to associate them with mod1. The only  
> reason B is associated with A in
>
> module A
>   module B; end
> end
>
> is that they are lexically related. (More precisely the constant  
> "B" is in the namespace belonging to the class A.)
>
> Maybe someone else has a more definitive answer?
>

VALUE rb_define_module_under(VALUE outer, const char *name)

You could use this to define a named module under an anonymous module.

> -- 
>       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407
>