default:
        return isSmall(totalCharacters, table.length())
            ? SmallCharMatcher.from(table, description)
            : new BitSetMatcher(table, description);
    }
  }

  @GwtIncompatible // SmallCharMatcher
  private static boolean isSmall(int totalCharacters, int tableLength) {
    return totalCharacters <= SmallCharMatcher.MAX_SIZE
        && tableLength > (totalCharacters * 4 * Character.SIZE);