public override T AddOrUpdatePayload <T>(PayloadFactory <T> addFactory, UpdatePayloadFactory <T> updateFactory)
{
if (this is T context)
{
return(context);
}
if (_context.TryGetPayload <T>(out var payload))
{
return(_context.AddOrUpdatePayload(addFactory, updateFactory));
}
if (base.TryGetPayload(out payload))
{
T Add()
{
return(updateFactory(payload));
}
return(_context.AddOrUpdatePayload(Add, updateFactory));
}
return(_context.AddOrUpdatePayload(addFactory, updateFactory));
}