private void CalculateDependenciesAndRoots()
{
if (!_invalidStateInputOutput)
{
return;
}
_invalidStateInputOutput = false;
IVariationGeneratorCollection possibleRoots = new IVariationGeneratorCollection();
foreach (IVariationGenerator vg in Generators)
{
if (possibleRoots.Contains(vg))
{
throw new InvalidOperationException("Cannot have the same IVariationGenerator twice as child of the TXR.");
}
possibleRoots.Add(vg);
FindAndRemoveFalseRoots(possibleRoots, vg);
}
_vgRoots = possibleRoots;
}
private static void FindAndRemoveFalseRoots(IVariationGeneratorCollection possibleRoots, IVariationGenerator vg)
{
foreach (IVariationGenerator childVG in vg.Dependencies)
{
if (possibleRoots.Contains(childVG))
{
possibleRoots.Remove(childVG);
}
FindAndRemoveFalseRoots(possibleRoots, childVG);
}
}
///<summary>
///</summary>
public TestExtenderGraph()
{
_vgCollection = new IVariationGeneratorCollection();
_vgCollection.CollectionChanged += new EventHandler(_vgCollection_CollectionChanged);
_currentTXR = this;
}
