Lifting the Curse of Knowledge

public ActiveProduct(Product product, StringVersion driver, Side es)
{
    Side = es;

    try
    {
        if (product == null)
            throw new Exception("Can't create an active product from a null product");

        Logger.LogTimeStudyStart("ActiveProduct create");

        if (driver.IsEmpty())
            CurrentDriver = product.Driver;
        else
            CurrentDriver = driver;

        _Device = Session.Instance.DeviceManager.CreateHI(es, CurrentDriver.ToString());
        _Device.ConnectionStatus += Device_ConnectionStatus;
        _Device.BatteryStatus += Device_BatteryStatus;
    }
    catch (Exception ex)
    {
        ExceptionHandler.HandleException(ex);
        throw ex;
    }
    finally
    {
        Logger.LogTimeStudyEnd("ActiveProduct create", "ActiveProduct: Creating " + driver);
    }

    State = ActiveProductState.Simulated;
    Environments = new SortedList<string, Environment>();
    this._Product = product;
    _Options = product.AvailableOptions;
    AvailablePrograms = new ProgramSlots(this) { HIStartIndex = 0 };
    AccessoryPrograms = new ProgramSlots(this) { CanRemoveOverride = true, StartIndex = 4, IsAutoShifting = false };
    VirtualPrograms = new ProgramSlots(this) { IsVirtual = true, CanRemoveOverride = true, SlotConfig = Limit.None };
    SlotCalculator = new ProgramCalculator(this, false);
    VirtualCalculator = new ProgramCalculator(this, true);
    DFS = new DFSCalibration(this);
    Accessories = new Accessories();
    PowerBands = PowerBands.Unknown;
}

As most of you know, one of the biggest anti-patterns when you’re instantiating program slots is to forget to set CanRemoveOverride to true. But what you probably didn’t know was that the SlotConfig is — Just kidding. I lifted this from a post I wrote almost 3 years ago about legacy code I was working with then. I have little more idea than you do what any of that means.

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