public CompositeEventActivity(CompositeEventStatusAccessor <TInstance> accessor, int flag, CompositeEventStatus complete, Event @event)
{
_accessor = accessor;
_flag = flag;
_complete = complete;
_event = @event;
}
void CompositeEvent(Expression <Func <Event> > propertyExpression, CompositeEventStatusAccessor <TInstance> accessor,
CompositeEventOptions options, Event[] events)
{
if (events == null)
{
throw new ArgumentNullException(nameof(events));
}
if (events.Length > 31)
{
throw new ArgumentException("No more than 31 events can be combined into a single event");
}
if (events.Length == 0)
{
throw new ArgumentException("At least one event must be specified for a composite event");
}
if (events.Any(x => x == null))
{
throw new ArgumentException("One or more events specified has not yet been initialized");
}
PropertyInfo eventProperty = propertyExpression.GetPropertyInfo();
string name = eventProperty.Name;
var @event = new TriggerEvent(name);
eventProperty.SetValue(this, @event);
_eventCache[name] = new StateMachineEvent <TInstance>(@event, false);
var complete = new CompositeEventStatus(Enumerable.Range(0, events.Length)
.Aggregate(0, (current, x) => current | (1 << x)));
for (int i = 0; i < events.Length; i++)
{
int flag = 1 << i;
var activity = new CompositeEventActivity <TInstance>(accessor, flag, complete, @event);
Func <State <TInstance>, bool> filter = x => options.HasFlag(CompositeEventOptions.IncludeInitial) || !Equals(x, Initial);
foreach (var state in _stateCache.Values.Where(filter))
{
During(state,
When(events[i])
.Execute(x => activity));
}
}
}
