From: Daniel Waite <rabbitblue@...>
Date: 2007-10-26T04:32:07+09:00
Subject: Re: Need help understanding metaclassing

Daniel Waite wrote:
> cs.instance_eval do
>   define_method(:eat) do
>     puts "You eat."
>   end
> end
> 
> cs.eat # => errors:
> NoMethodError: undefined method `eat' for 
> #<Class:#<Creature:0xb7f78ae8>>
> 
> Why is that? I've tried class_eval, too and I get the same thing. I 
> thought I understood this stuff pretty well but I guess not.

This works:

cs.instance_eval do
  def eat
    puts "You eat."
  end
end

cs.eat # You eat.

What's up with define_method?
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