Created
October 19, 2009 22:54
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| >> ObjectSpace.each_object{|o| p o if Class === o && !o.instance_methods.include?('dup')} | |
| #=> 98690 | |
| >> class Fixnum; undef :dup; end | |
| #=> nil | |
| >> ObjectSpace.each_object{|o| p o if Class === o && !o.instance_methods.include?('dup')} | |
| Fixnum | |
| #=> 122815 |
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