public IEnumerable <ResourceType> GetVisibleTypes(DataServiceOperationContext operationContext)
{
if (this.Configuration.AccessEnabledForAllResourceTypes)
{
foreach (ResourceType iteratorVariable0 in this.Types)
{
yield return(iteratorVariable0);
}
}
else
{
HashSet <ResourceType> visitedTypes = new HashSet <ResourceType>(EqualityComparer <ResourceType> .Default);
IEnumerable <ResourceType> first = new ResourceType[0];
foreach (ResourceSetWrapper wrapper in this.GetResourceSets())
{
first = first.Concat <ResourceType>(this.GetReachableTypesFromSet(wrapper, visitedTypes));
}
foreach (OperationWrapper wrapper2 in this.GetVisibleOperations(operationContext))
{
first = first.Concat <ResourceType>(this.GetReachableComplexTypesFromOperation(wrapper2, visitedTypes));
}
foreach (string str in this.Configuration.GetAccessEnabledResourceTypes())
{
ResourceType resourceType = this.TryResolveResourceType(str);
if (resourceType == null)
{
throw new InvalidOperationException(System.Data.Services.Strings.MetadataSerializer_AccessEnabledTypeNoLongerExists(str));
}
first = first.Concat <ResourceType>(this.GetResourceTypeAndReachableComplexTypes(resourceType, visitedTypes));
}
foreach (ResourceType iteratorVariable3 in first)
{
yield return(iteratorVariable3);
}
}
}