note description: "[ TODO ]" date: "$Date$" revision: "$Revision$" deferred class IV_CONTRACT_VISITOR feature -- Visitor process_precondition (a_precondition: IV_PRECONDITION) -- Process `a_precondition'. require a_precondition_attached: attached a_precondition deferred end process_postcondition (a_postcondition: IV_POSTCONDITION) -- Process `a_postcondition'. require a_postcondition_attached: attached a_postcondition deferred end process_modifies (a_modifies: IV_MODIFIES) -- Process `a_modifies'. require a_modifies_attached: attached a_modifies deferred end end