private static IEnumerable <string> GetInboundActivityPathInternal(this WorkflowExecutionContext workflowExecutionContext, string activityId, string startingPointActivityId)
{
foreach (var connection in workflowExecutionContext.GetInboundConnections(activityId))
{
// Circuit breaker: Detect workflows that implement repeating flows to prevent an infinite loop here.
if (connection.Source.Activity.Id == startingPointActivityId)
{
yield break;
}
yield return(connection.Source.Activity.Id !);
foreach (var parentActivityId in workflowExecutionContext
.GetInboundActivityPathInternal(connection.Source.Activity.Id !, startingPointActivityId)
.Distinct())
{
yield return(parentActivityId);
}
}
}