OoasTools

types

  Class1 = autocons system

  |[

  var

	O2 : Class2 = new (Class2);

	flag : bool = false

  methods

	doSomething =

		flag := true

	end

  actions

	ctr init = requires true :

		O2.init(self)

		end

  do

        init

  od

  ]| ;

  Class2 = system

  |[

  var

	O1 : Class1 = nil

  methods

	init (object : Class1) = requires (object <> nil) :

		O1 := object

		end

	end

  ]|

system

        Class1 [] Class2