infer_clone/infer/tests/codetoanalyze/java/quandary/Recursion.java

/*
 * Copyright (c) 2016 - present Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

package codetoanalyze.java.quandary;

import com.facebook.infer.builtins.InferTaint;

public class Recursion {

  public static void divergeOk() {
    divergeOk();
  }

  public static void callSinkThenDiverge(Object param) {
    InferTaint.inferSensitiveSink(param);
    callSinkThenDiverge(param);
  }

  public static void callSinkThenDivergeBad() {
    callSinkThenDiverge(InferTaint.inferSecretSource());
  }

  public static void safeRecursionCallSink(int i, Object param) {
    if (i == 0) return;
    InferTaint.inferSensitiveSink(param);
    safeRecursionCallSink(i - 1, param);
  }

  public static void safeRecursionCallSinkBad() {
    safeRecursionCallSink(5, InferTaint.inferSecretSource());
  }

  // TODO (#16595757): Requires support for recursion in Ondemand
  public static void FN_recursionBad(int i, Object param) {
    if (i == 0) return;
    InferTaint.inferSensitiveSink(param);
    FN_recursionBad(i - 1, InferTaint.inferSecretSource());
  }

}