public static List filter()

in src/main/java/net/hydromatic/linq4j/function/Functions.java [335:367]

• 33 lines of code
• 9 McCabe index (conditional complexity)

  public static <E> List<E> filter(List<E> list, Predicate1<E> predicate) {
  sniff:
    {
      int hitCount = 0;
      int missCount = 0;
      for (E e : list) {
        if (predicate.apply(e)) {
          if (missCount > 0) {
            break sniff;
          }
          ++hitCount;
        } else {
          if (hitCount > 0) {
            break sniff;
          }
          ++missCount;
        }
      }
      if (hitCount == 0) {
        return Collections.emptyList();
      }
      if (missCount == 0) {
        return list;
      }
    }
    final List<E> list2 = new ArrayList<E>(list.size());
    for (E e : list) {
      if (predicate.apply(e)) {
        list2.add(e);
      }
    }
    return list2;
  }