}

  @Override
  public boolean equals(@Nullable Object object) {
    if (object == this) {
      return true;
    } else if (object instanceof RegularContiguousSet) {
      RegularContiguousSet<?> that = (RegularContiguousSet<?>) object;
      if (this.domain.equals(that.domain)) {
        return this.first().equals(that.first()) && this.last().equals(that.last());
      }
    }

    reserializeAndAssert(empty);

    ContiguousSet<Integer> regular = ContiguousSet.create(Range.closed(1, 3), integers());
    assertTrue(regular instanceof RegularContiguousSet);
    reserializeAndAssert(regular);

    /*
     * Make sure that we're using RegularContiguousSet.SerializedForm and not
     * ImmutableSet.SerializedForm, which would be enormous.
     */

    reserializeAndAssert(empty);

    ContiguousSet<Integer> regular = ContiguousSet.create(Range.closed(1, 3), integers());
    assertTrue(regular instanceof RegularContiguousSet);
    reserializeAndAssert(regular);

    /*
     * Make sure that we're using RegularContiguousSet.SerializedForm and not
     * ImmutableSet.SerializedForm, which would be enormous.
     */