From: Tony Arcieri <tony@...>
Date: 2009-08-13T09:54:00+09:00
Subject: Re: Class#descendants?

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Oi, good catch.

So the question remains... can this be done without ObjectSpace?

On Wed, Aug 12, 2009 at 4:05 PM, Joel VanderWerf <vjoel@path.berkeley.edu>wrote:

> Tony Arcieri wrote:
>
>> For what it's worth, here's my implementation, which doesn't use
>> ObjectSpace.  It's a bit less trivial and I wonder if it could be made
>> better:
>>
>> http://gist.github.com/166800
>>
>> Workarounds for ActiveSupport included, yay!
>>
>
> Not all classes are constants...
>
> my_numbers = Class.new(Numeric)
>
> p Numeric.descendants
> a = []
> ObjectSpace.each_object(Class) {|cl| a << cl if cl <= Numeric}
> p a
>
>
> --
>      vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407
>
>


-- 
Tony Arcieri
Medioh/Nagravision

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