# Optimize a method dispatch,
	# If this method is always at the same position in virtual table, we can use direct access,
	# Otherwise we must use perfect hashing
	fun optimize(recv: Instance)
	do
		var position = recv.mtype.as(MClassType).mclass.get_position_methods(mproperty.intro_mclassdef.mclass)
		if position > 0 then
			offset = position + mproperty.offset
			status = 1
		else
			offset = mproperty.offset
			status = 2
		end
		id = mproperty.intro_mclassdef.mclass.vtable.id
	end