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ianterrell/gist:124400

Created June 5, 2009 18:04
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gistfile1.sh
[14:04][ian@ian-terrells-macbook-pro:~]$ ruby --version
ruby 1.8.6 (2008-08-11 patchlevel 287) [universal-darwin9.0]
[14:04][ian@ian-terrells-macbook-pro:~]$ irb
>> class X
>> end
=> nil
>> class Y < X
>> end
=> nil
>> X.subclasses
NoMethodError: undefined method `subclasses' for X:Class
from (irb):5
>> x = X.new
=> #<X:0x5ed1ac>
>> x.subclasses
NoMethodError: undefined method `subclasses' for #<X:0x5ed1ac>
from (irb):7
>>
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