}
    }

    public void visitRuleClosure(ClosureExpression expression, Expression invocation, String invocationDisplayName) {
        InputReferences parentInputs = inputs;
        VariableExpression parentInputsVariable = inputsVariable;
        try {
            inputs = new InputReferences();
            inputsVariable = new VariableExpression("__rule_inputs_var_" + counter++, POTENTIAL_INPUTS);