static uint AddOperationToGraph(IOperation op, DataGraph <IOperation> graph, uint parentID)
{
if (op == null)
{
return(0);
}
// We link this node to parent (and potencially create it if it does not exist).
uint id;
if (!graph.Contains(op, out id))
{
id = graph.AddNode(op);
}
// We add link only if parent exists and the link does not yet exist.
if (parentID != uint.MaxValue && !graph.LinkExistsDirectional(parentID, id))
{
graph.LinkDirectional(parentID, id);
}
// We do recursevelly for children.
foreach (Pin p in op.Inputs)
{
AddOperationToGraph(p.Owner, graph, id);
}
// We return self id.
return(id);
}