From: "Albert L. Wagner" <alwagner@...>
Date: 2002-01-12T00:07:50+09:00
Subject: "each" in iterator: confusion

I do not understand why this code runs forever.  Is it because
the yield is taken to be a second yield in the super class
"each"?  Is there a way to do such nested iterators?

class MyHash < Hash
    def each(&block)
        super.each do | k, v |
            v2 = v * 2
            yield( k, v2)
        end
    end
end

h = MyHash.new
h['a'] = 1
h['b'] = 2
h['c'] = 3
h.each do | k, v | puts "#{k}==>#{v}" end


-- 
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 the music is nothing if the audience is deaf."
 - Walter Lippman