attr_create (attr_accessor like)

eval.rb

class Module
  def attr_create(*symbols)
    symbols.each do |symbol|
      class_eval("def #{symbol}; @#{symbol}; end;")
      class_eval("def #{symbol}=(value); @#{symbol} = value; end;")
    end
  end
end

class A
  attr_create :name, :programming_language
end

a = A.new
a.name = "Brian"
a.programming_language = "Ruby"

puts a.name
puts a.programming_language