wtf.rb

class Foo

  def self.define_attribute(name)
    class_eval %{
      def #{name}(*args)
        attribute(#{name.inspect}, *args)
      end
    }
  end

  define_attribute :bar

  def attribute(name)
    p name
  end

end

begin
  p Foo.new.bar 100
rescue => e
  puts e
end
p Foo.new.bar

begin
  p Foo.new.bar 100
rescue => e
  puts e
end