Method: XMLMunger::ListHeuristics#common_type

Defined in:
lib/xmlmunger/list_heuristics.rb

#common_type(of = nil) ⇒ Object 



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# File 'lib/xmlmunger/list_heuristics.rb', line 24

def common_type(of = nil)
      @common_types ||= {}
                 of ||= @list
  @common_types[of] ||= of.map{|x|x.class.ancestors}.reduce(:&).first
end