From: Adam Prescott <mentionuse@...>
Date: 2011-03-26T07:29:59+09:00
Subject: Re: How to get the value of a singleton class?

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On Fri, Mar 25, 2011 at 12:52 PM, Robert Dober <robert.dober@gmail.com>wrote:

> Now if you were looking for a way to get from a singleton class of an
> object to the object itself, I am not sure that this is possible.
>

This should do the trick:

>> s = ""
=> ""
>> class << s
>> def test
>> 1
>> end
>> end
=> nil
>> s.test
=> 1
>> meta = (class << s; self; end)
=> #<Class:#<String:0x83c87ac>>
>> ObjectSpace.each_object(meta).to_a
=> [""]
>> _.first.object_id
=> 69092310
>> s.object_id
=> 69092310

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