# Class Metric: Number of Ancestors
class CNOA
	super MClassMetric
	super IntMetric
	redef fun name do return "cnoa"
	redef fun desc do return "number of ancestor classes"

	redef fun collect(mclasses) do
		for mclass in mclasses do
			values[mclass] = mclass.in_hierarchy(mainmodule).greaters.length - 1
		end
	end
end