From: konryd <konryd@...>
Date: 2007-05-12T02:10:22+09:00
Subject: Creating and adding new methods in runtime

Hello, I need to add in runtime several methods to my class. How can I
accomplish this in ruby?
More precisely: I need my class to overload arithmetic operators with
fixnums in both ways (4+MyClass, MyClass+4). All the necessary info is
stored in a hash, so I created a method to do all the stuff. It looks
like do_operation(operator, other)
But still I have to add every single operator overloader:
class Fixnum

  def doo_operation(operator, other)
  #...nevermind...
  end

  def +(other)
    do_operation(:+, other)
  end
  def -(other)
    do_operation(:-, other)
  end
end

can I automate it somehow?