Parameters of Proxy Sample Clauses

Parameters of Proxy setup() must fulfill the precondition that the capacity lm of a proxy is larger than zero and the service object s is not null. The heap precondition expresses that field limit is zero and service is null. The heap postcondition expresses that after termination of setup() the value of limit is larger than zero and service is not null. class Proxy implements ProxyI { /∗@ requires limit == 0 && service == null; interface ProxyI { /∗@ requires lm > 0 & s != null @∗/ Unit setup(Int lm, ServiceI s); } ensures limit > 0 && service != null; assignable {limit, service}; @∗/ Unit setup(Int lm, ServiceI s) { limit = lm; service = s; }