Predicate Cached::optionalBarrier
A step in a flow summary defined using OptionalBarrier[name]. An OptionalBarrier is “opt-out”, by default
data can flow freely through the step. Flow through the step can be explicity blocked by defining its node as a barrier.
Import path
import codeql.rust.dataflow.internal.DataFlowImplpredicate optionalBarrier(Node node, string name)