From: Greg Weeks <greg.weeks@...>
Date: 2007-11-18T07:20:10+09:00
Subject: Re: eval, module_eval, define_method, and all that

I wrote above that my head was swimming.  Not enough, evidentally:

If I want my_attr_reader to handle multiple attributes, this works:

    def my_attr_reader *names
      names.each do |name|    # THIS IS THE ONLY LINE THAT DIFFERS
        define_method name do
          instance_variable_get "@"+name.to_s
        end
      end
    end

But this doesn't:

    def my_attr_reader *names
      for name in names       # THIS IS THE ONLY LINE THAT DIFFERS
        define_method name do
          instance_variable_get "@"+name.to_s
        end
      end
    end

Ouch.
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