this.function = checkNotNull(function);
    this.ordering = checkNotNull(ordering);
  }

  @Override
  public int compare(@ParametricNullness F left, @ParametricNullness F right) {
    return ordering.compare(function.apply(left), function.apply(right));
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object == this) {
      return true;
    }

 * Comparator} or {@link Comparable} type whose comparison behavior is <i>inconsistent with
 * equals</i>. That is, {@code a.compareTo(b)} or {@code comparator.compare(a, b)} should equal zero
 * <i>if and only if</i> {@code a.equals(b)}. If this advice is not followed, the resulting map will
 * not correctly obey its specification.
 *

          lowerBound == null || upperBound == null || compare(lowerBound, upperBound) <= 0);
    }

    @Override
    public SortedSet<C> keySet() {
      return new Maps.SortedKeySet<>(this);
    }

    @Override
    public Comparator<? super C> comparator() {
      return columnComparator();
    }

    int compare(Object a, Object b) {
      // pretend we can compare anything
      @SuppressWarnings("unchecked")

          .isTrue();
    }
  }

  public void testCompare() {
    for (byte x : VALUES) {
      for (byte y : VALUES) {
        // Only compare the sign of the result of compare().
        int expected = Byte.compare(x, y);
        int actual = SignedBytes.compare(x, y);
        if (expected == 0) {
          assertWithMessage("%s, %s", x, y).that(actual).isEqualTo(expected);
        } else if (expected < 0) {

		{cred, cred, true},
		// Empty credentials to compare.
		{cred, Credentials{}, false},
		// Empty credentials.
		{Credentials{}, cred, false},
		// Two different credentialss
		{cred, cred2, false},
		// Access key is different in credentials to compare.
		{cred, Credentials{AccessKey: "myuser", SecretKey: cred.SecretKey}, false},
		// Secret key is different in credentials to compare.

  ReverseOrdering(Ordering<? super T> forwardOrder) {
    this.forwardOrder = checkNotNull(forwardOrder);
  }

  @Override
  public int compare(@ParametricNullness T a, @ParametricNullness T b) {
    return forwardOrder.compare(b, a);
  }

  @SuppressWarnings("unchecked") // how to explain?
  @Override
  public <S extends T> Ordering<S> reverse() {
    return (Ordering<S>) forwardOrder;
  }

  }

  @Override
  public int compare(Iterable<T> leftIterable, Iterable<T> rightIterable) {
    Iterator<T> left = leftIterable.iterator();
    Iterator<T> right = rightIterable.iterator();
    while (left.hasNext()) {
      if (!right.hasNext()) {
        return LEFT_IS_GREATER; // because it's longer
      }
      int result = elementOrder.compare(left.next(), right.next());
      if (result != 0) {

  }

  @Override
  public int compare(Iterable<T> leftIterable, Iterable<T> rightIterable) {
    Iterator<T> left = leftIterable.iterator();
    Iterator<T> right = rightIterable.iterator();
    while (left.hasNext()) {
      if (!right.hasNext()) {
        return LEFT_IS_GREATER; // because it's longer
      }
      int result = elementOrder.compare(left.next(), right.next());
      if (result != 0) {

  final Comparator<T> comparator;

  ComparatorOrdering(Comparator<T> comparator) {
    this.comparator = checkNotNull(comparator);
  }

  @Override
  public int compare(@ParametricNullness T a, @ParametricNullness T b) {
    return comparator.compare(a, b);
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object == this) {
      return true;
    }

}

// ConditionRHS represents the right-hand-side of Compare, Between, In
// or Like expressions.
type ConditionRHS struct {
	Compare *Compare `parser:"  @@"`
	Between *Between `parser:"| @@"`
	In      *In      `parser:"| \"IN\" @@"`
	Like    *Like    `parser:"| @@"`
}

// Compare represents the RHS of a comparison expression
type Compare struct {