From: john rxjmo <lists@...>
Date: 2013-03-08T06:42:41+09:00
Subject: methods in subclasses

Hi,
I'm new to ruby programming and I want to ask you if you can help me on
this.
I have created 3 classes (c1, c2, c3) and I want to do 3 sublasses (sc1,
sc2, sc3).

the classes are related.

I want to define a method in cs1 (uses variables and methods from c1)
and use it from sc2.

When I run the module I get this error:
I get this error : "NoMethodError: undefined method `r180' for
#<c1:0x000000055683a8>

sample code:
class sc2 < c2
  # this method (m1) is defined in c2
  def m1
    super
    # I want to add this part
    # @b: defined in c2 as an instance of c1
    @r.bind('u', proc {@b.r180})
  end
end

class sc1 < c1
  # I added this method
  def r180
    # go, @gir, @cb.m() and d() are defined
    # in c1
    if !go? and @gir?
      @cb.m()
    end
    d()
  end
end

Can you help me please.

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