From: mattmsykes@... (Matt M Sykes)
Date: 2002-04-15T16:21:33+09:00
Subject: strange behavior for a subclass

#!/usr/local/bin/ruby

class A
    def clone()
	puts "A#clone"
	A.new()
    end
end

class B < A
    
    def initialize(data=nil)
	if data.kind_of?(A)
	    # get a slice from an A

	elsif data.kind_of?(B)
	    # regular copy constructor

	end
    end

    def clone()
	puts "B#clone"
	B.new(super.clone())
    end
end

b0 = B.new()
b1 = b0.clone()

__END__

this prints: 

B#clone
A#clone
A#clone

Oh my gosh, why is A#clone called twice?

I realize this program is a bit nonsensical (also, a clone() method
wouldn't be needed in ruby), but this is the simplest example that
comes to mind which represents a bug I'm experiencing in other code.

Thanks,
Matt