Question

Is it possible to instantiate a class in a separate thread without a compile time warning?

For example the below code gives the compile time error “Use of unassigned local variable BECheck”. I would rather keep AvailabilityCheckBase abstract and not assign it some dummy variable. Creating both BTCheck and BECheck is slow which is why I need it threaded.

    public static AvailabilityCheckBase ByDSL(string dsl)
    {
        AvailabilityCheckBase BECheck;
        AvailabilityCheckBase BTCheck;

        Thread BEThread = new Thread(new ThreadStart(() => BECheck = new BEAvailabilityCheck(dsl)));
        Thread BTThread = new Thread(new ThreadStart(() => BTCheck = new BTAvailabilityCheck(dsl)));

        BEThread.Join();
        BTThread.Join();

        return BECheck.Merge(BTCheck);
    }

Answer 1

Doesn’t this fix your compile error? :

change

    AvailabilityCheckBase BECheck;
    AvailabilityCheckBase BTCheck;

to

    AvailabilityCheckBase BECheck = null;
    AvailabilityCheckBase BTCheck = null;