Data flow: Restrict public PathNodes to those that may reach a sink
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jketema
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aschackmull
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| /** | ||
| * A `Node` augmented with a call context (except for sinks), an access path, and a configuration. | ||
| * Only those `PathNode`s that are reachable from a source, and which can reach a sink, are generated. |
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This is not entirely accurate. Nodes that are used in a subpath are also included.
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Just like
PathNode::getASuccessoris restricted to nodes that can reach a sink, it also makes sense to only expose nodes that can reach a sink. This means that the exposedPathNodeclass and thenodespredicate contain the same elements.The reason for the updated C++ test output is because
DefaultTaintTracking.qlldid not previously restrict thenodesrelation to nodes that can reach a sink.