Method equals

output/java_guava/1.4.19/ImmutableSet.java:341–351

(@Nullable Object object)

  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object == this) {
      return true;
    } else if (object instanceof ImmutableSet && isHashCodeFast()
               && ((ImmutableSet<?>) object).isHashCodeFast()
        && hashCode() != object.hashCode()) {
      return false;
    }
    return Sets.equalsImpl(this, object);
  }

  @Override
  public int hashCode() {