using method_missing in the ruby c api

method_missing is a very useful tool for dynamic programming.
It is easy to implement in ruby:

class Fren
    def method_missing(*info)
        puts "method called: #{info.shift} does not exist" 
        puts "received parameters:"
        info.each { |v| puts v }
    end
end

The parameters passed to method_missing include the symbol for the ‘method’  along with any arguments. The parameters are stored in [...]