CodeQL library for Java/Kotlin
codeql/java-all 4.0.1-dev (changelog, source)
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Predicate DataFlow::simpleAstFlowStep

Holds if there is a data flow step from e1 to e2 that only steps from child to parent in the AST.

Import path

import semmle.code.java.dataflow.DataFlow
predicate simpleAstFlowStep(Expr e1, Expr e2)