sclass GazelleEvalContext {
  RuleEngine2 engine;
  Map<S, ai_gazelle_analyzeStatementsForRule_Data> dataByRule;
  Set<S> linesSet; // set of all lines in tree
  transient L onNewNode; // L<voidfunc(GazelleTree)>
  GazellePredictor predictor;
  S mechListPrefix = "";
  
  *() {
    gazelle_addSharedClasses();
  }
}