From: Jim Freeze <jim@...>
Date: 2001-10-03T22:45:08+09:00
Subject: [ruby-talk:21999] Class const in a super class

Hi:

I am trying to define a constant in a superclass,
but use that const in the base class.
So far, no luck. Here is an example of what I
am trying to do:

class Base
  def initialize
    puts "classconst: #{CLASSCONST}"
  end
end

class A1 < Base
  CLASSCONST = "a1"
end

class A2 < Base
  CLASSCONST = "a2"
end
A1.new
A2.new

When I run this I get the error:
./test.rb:5:in `initialize': uninitialized constant Base::CLASSCONST
(NameError)
        from ./test.rb:16:in `new'
        from ./test.rb:16


Any ideas how I can accomplish this?

Thanks
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Jim Freeze
jim@freeze.org
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http://www.freeze.org
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