private static void ProcessActivity(ChildActivity childActivity, ref ChildActivity nextActivity, ref Stack <ChildActivity> activitiesRemaining, ActivityCallStack parentChain, ref IList <ValidationError> validationErrors, ProcessActivityTreeOptions options, ProcessActivityCallback callback)
{
Activity element = childActivity.Activity;
IList <Constraint> runtimeConstraints = element.RuntimeConstraints;
IList <ValidationError> list2 = null;
if (!element.HasStartedCachingMetadata)
{
element.MemberOf.AddMember(element);
element.InternalCacheMetadata(options.CreateEmptyBindings, ref list2);
ActivityValidationServices.ValidateArguments(element, element.Parent == null, ref list2);
ActivityLocationReferenceEnvironment environment = null;
ActivityLocationReferenceEnvironment environment2 = new ActivityLocationReferenceEnvironment(element.HostEnvironment)
{
InternalRoot = element
};
int nextEnvironmentId = 0;
ProcessChildren(element, element.Children, ActivityCollectionType.Public, true, ref nextActivity, ref activitiesRemaining, ref list2);
ProcessChildren(element, element.ImportedChildren, ActivityCollectionType.Imports, true, ref nextActivity, ref activitiesRemaining, ref list2);
ProcessChildren(element, element.ImplementationChildren, ActivityCollectionType.Implementation, !options.SkipPrivateChildren, ref nextActivity, ref activitiesRemaining, ref list2);
ProcessArguments(element, element.RuntimeArguments, true, ref environment2, ref nextEnvironmentId, ref nextActivity, ref activitiesRemaining, ref list2);
ProcessVariables(element, element.RuntimeVariables, ActivityCollectionType.Public, true, ref environment, ref nextEnvironmentId, ref nextActivity, ref activitiesRemaining, ref list2);
ProcessVariables(element, element.ImplementationVariables, ActivityCollectionType.Implementation, !options.SkipPrivateChildren, ref environment2, ref nextEnvironmentId, ref nextActivity, ref activitiesRemaining, ref list2);
if (element.HandlerOf != null)
{
for (int i = 0; i < element.HandlerOf.RuntimeDelegateArguments.Count; i++)
{
RuntimeDelegateArgument argument = element.HandlerOf.RuntimeDelegateArguments[i];
DelegateArgument boundArgument = argument.BoundArgument;
if ((boundArgument != null) && boundArgument.InitializeRelationship(element, ref list2))
{
boundArgument.Id = nextEnvironmentId;
nextEnvironmentId++;
}
}
}
if (environment == null)
{
element.PublicEnvironment = new ActivityLocationReferenceEnvironment(element.GetParentEnvironment());
}
else
{
if (environment.Parent == null)
{
environment.InternalRoot = element;
}
element.PublicEnvironment = environment;
}
element.ImplementationEnvironment = environment2;
ProcessDelegates(element, element.Delegates, ActivityCollectionType.Public, true, ref nextActivity, ref activitiesRemaining, ref list2);
ProcessDelegates(element, element.ImportedDelegates, ActivityCollectionType.Imports, true, ref nextActivity, ref activitiesRemaining, ref list2);
ProcessDelegates(element, element.ImplementationDelegates, ActivityCollectionType.Implementation, !options.SkipPrivateChildren, ref nextActivity, ref activitiesRemaining, ref list2);
if (callback != null)
{
callback(childActivity, parentChain);
}
if (list2 != null)
{
Activity activity2;
if (validationErrors == null)
{
validationErrors = new List <ValidationError>();
}
string str = ActivityValidationServices.GenerateValidationErrorPrefix(childActivity.Activity, parentChain, out activity2);
for (int j = 0; j < list2.Count; j++)
{
ValidationError item = list2[j];
item.Source = activity2;
item.Id = activity2.Id;
if (!string.IsNullOrEmpty(str))
{
item.Message = str + item.Message;
}
validationErrors.Add(item);
}
list2 = null;
}
if (options.StoreTempViolations && (validationErrors != null))
{
childActivity.Activity.SetTempValidationErrorCollection(validationErrors);
validationErrors = null;
}
}
else
{
SetupForProcessing(element.Children, true, ref nextActivity, ref activitiesRemaining);
SetupForProcessing(element.ImportedChildren, false, ref nextActivity, ref activitiesRemaining);
SetupForProcessing(element.RuntimeArguments, ref nextActivity, ref activitiesRemaining);
SetupForProcessing(element.RuntimeVariables, ref nextActivity, ref activitiesRemaining);
SetupForProcessing(element.Delegates, true, ref nextActivity, ref activitiesRemaining);
SetupForProcessing(element.ImportedDelegates, false, ref nextActivity, ref activitiesRemaining);
if (!options.SkipPrivateChildren)
{
SetupForProcessing(element.ImplementationChildren, true, ref nextActivity, ref activitiesRemaining);
SetupForProcessing(element.ImplementationDelegates, true, ref nextActivity, ref activitiesRemaining);
SetupForProcessing(element.ImplementationVariables, ref nextActivity, ref activitiesRemaining);
}
if ((callback != null) && !options.OnlyCallCallbackForDeclarations)
{
callback(childActivity, parentChain);
}
if (childActivity.Activity.HasTempViolations && !options.StoreTempViolations)
{
childActivity.Activity.TransferTempValidationErrors(ref validationErrors);
}
}
if ((!options.SkipConstraints && parentChain.WillExecute) && (childActivity.CanBeExecuted && (runtimeConstraints.Count > 0)))
{
ActivityValidationServices.RunConstraints(childActivity, parentChain, runtimeConstraints, options, false, ref validationErrors);
}
}