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virtual nsIDOMGCParticipant* nsIDOMGCParticipant::GetSCCIndex (  )  [pure virtual, inherited]

Get a reference node for what is known to be a strongly connected component of nsIDOMGCParticipants. For example, DOM trees are strongly connected, so can return the root node to greatly reduce the number of nodes on which we need to run graph algorithms.

Note that it's acceptable for nodes in a single strongly connected component to return different values for GetSCCIndex, as long as those two values claim that they're reachable from each other in AppendReachableList.

Implemented in nsGenericElement.


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