# Build class tables
	fun build_class_typing_tables(mclasses: Set[MClass]): Map[MClass, Array[nullable MClass]] do
		var tables = new HashMap[MClass, Array[nullable MClass]]
		for mclass in mclasses do
			var table = new Array[nullable MClass]
			var supers = new Array[MClass]
			if mainmodule.flatten_mclass_hierarchy.has(mclass) then
				supers = mclass.in_hierarchy(mainmodule).greaters.to_a
			end
			for sup in supers do
				var color = class_colors[sup]
				if table.length <= color then
					for i in [table.length .. color[ do
						table[i] = null
					end
				end
				table[color] = sup
			end
			tables[mclass] = table
		end
		return tables
	end