# Like `try_get_mclass_by_name` but display an error message when the class is not found
	fun get_mclass_by_name(node: nullable ANode, mmodule: MModule, name: String): nullable MClass
	do
		var mclass = try_get_mclass_by_name(node, mmodule, name)
		if mclass == null then
			error(node, "Type Error: missing primitive class `{name}'.")
		end
		return mclass
	end