private static boolean canRollUp()

in core/src/main/java/org/apache/calcite/rex/RexSimplify.java [2369:2418]

• 48 lines of code
• 28 McCabe index (conditional complexity)

  private static boolean canRollUp(TimeUnit outer, TimeUnit inner) {
    // Special handling for QUARTER as it is not in the expected
    // order in TimeUnit
    switch (outer) {
    case YEAR:
    case MONTH:
    case DAY:
    case HOUR:
    case MINUTE:
    case SECOND:
    case MILLISECOND:
    case MICROSECOND:
      switch (inner) {
      case YEAR:
      case QUARTER:
      case MONTH:
      case DAY:
      case HOUR:
      case MINUTE:
      case SECOND:
      case MILLISECOND:
      case MICROSECOND:
        if (inner == TimeUnit.QUARTER) {
          return outer == TimeUnit.YEAR;
        }
        return outer.ordinal() <= inner.ordinal();
      default:
        break;
      }
      break;
    case QUARTER:
      switch (inner) {
      case QUARTER:
      case MONTH:
      case DAY:
      case HOUR:
      case MINUTE:
      case SECOND:
      case MILLISECOND:
      case MICROSECOND:
        return true;
      default:
        break;
      }
      break;
    default:
      break;
    }
    return false;
  }