internal static void AddExtensionClosure(object newExtension, ref List <object> targetCollection, ref bool addedTrackingParticipant, ref bool addedPersistenceModule)
{
// see if we need to process "additional" extensions
IWorkflowInstanceExtension currentInstanceExtension = newExtension as IWorkflowInstanceExtension;
if (currentInstanceExtension == null)
{
return; // bail early
}
Queue <IWorkflowInstanceExtension> additionalInstanceExtensions = null;
if (targetCollection == null)
{
targetCollection = new List <object>();
}
while (currentInstanceExtension != null)
{
IEnumerable <object> additionalExtensions = currentInstanceExtension.GetAdditionalExtensions();
if (additionalExtensions != null)
{
foreach (object additionalExtension in additionalExtensions)
{
targetCollection.Add(additionalExtension);
if (additionalExtension is IWorkflowInstanceExtension)
{
if (additionalInstanceExtensions == null)
{
additionalInstanceExtensions = new Queue <IWorkflowInstanceExtension>();
}
additionalInstanceExtensions.Enqueue((IWorkflowInstanceExtension)additionalExtension);
}
if (!addedTrackingParticipant && additionalExtension is TrackingParticipant)
{
addedTrackingParticipant = true;
}
if (!addedPersistenceModule && additionalExtension is IPersistencePipelineModule)
{
addedPersistenceModule = true;
}
}
}
if (additionalInstanceExtensions != null && additionalInstanceExtensions.Count > 0)
{
currentInstanceExtension = additionalInstanceExtensions.Dequeue();
}
else
{
currentInstanceExtension = null;
}
}
}
internal static void AddExtensionClosure(object newExtension, ref List <object> targetCollection, ref bool addedTrackingParticipant, ref bool addedPersistenceModule)
{
IWorkflowInstanceExtension extension = newExtension as IWorkflowInstanceExtension;
if (extension != null)
{
Queue <IWorkflowInstanceExtension> queue = null;
if (targetCollection == null)
{
targetCollection = new List <object>();
}
while (extension != null)
{
IEnumerable <object> additionalExtensions = extension.GetAdditionalExtensions();
if (additionalExtensions != null)
{
foreach (object obj2 in additionalExtensions)
{
targetCollection.Add(obj2);
if (obj2 is IWorkflowInstanceExtension)
{
if (queue == null)
{
queue = new Queue <IWorkflowInstanceExtension>();
}
queue.Enqueue((IWorkflowInstanceExtension)obj2);
}
if (!addedTrackingParticipant && (obj2 is TrackingParticipant))
{
addedTrackingParticipant = true;
}
if (!addedPersistenceModule && (obj2 is IPersistencePipelineModule))
{
addedPersistenceModule = true;
}
}
}
if ((queue != null) && (queue.Count > 0))
{
extension = queue.Dequeue();
}
else
{
extension = null;
}
}
}
}
