private void CloneDependentsInternal(Reference tail, DependencyMap dependents, DependencyMap precedents,
IDictionary seenNodes)
{
// Have we seen this reference already?
if (seenNodes.Contains(tail))
{
// Yes so just return
return;
}
// Mark it as seen
seenNodes.Add(tail, null);
var list = (IList)_map[tail];
if (list == null)
{
// No dependents so just return
return;
}
foreach (Reference dependant in list)
{
dependents.AddDependency(tail, dependant);
precedents.AddDependency(dependant, tail);
CloneDependentsInternal(dependant, dependents, precedents, seenNodes);
}
}