Method asSet

output/java_guava/1.4.17/ImmutableRangeSet.java:405–423

Returns an ImmutableSortedSet containing the same values in the given domain plain RangeSet#contains contained by this range set. Note: a.asSet(d).equals(b.asSet(d)) does not imply a.equals(b)! For example, a and b could be [2..4] and

(DiscreteDomain<C> domain)

  public ImmutableSortedSet<C> asSet(DiscreteDomain<C> domain) {
    checkNotNull(domain);
    if (isEmpty()) {
      return ImmutableSortedSet.of();
    }
    Range<C> span = span().canonical(domain);
    if (!span.hasLowerBound()) {
      // according to the spec of canonical, neither this ImmutableRangeSet nor
      // the range have a lower bound
      throw new IllegalArgumentException("Neither the DiscreteDomain nor this range set are bounded below");
    } else if (!span.hasUpperBound()) {
      try {
        domain.maxValue();
      } catch (NoSuchElementException e) {
        throw new IllegalArgumentException("Neither the DiscreteDomain nor this range set are bounded above");
      }
    }
    return new AsSet(domain);
  }

  private final class AsSet extends ImmutableSortedSet<C> {
    private final DiscreteDomain<C> domain;