import org.gradle.api.file.DirectoryProperty;

/**
 * Configuration for user manual documentation
 */
public abstract class UserManual {
    /**
     * The root of the user manual documentation.  This is the source of the adoc files.
     */
    public abstract DirectoryProperty getRoot();

    /**
     * Source of snippets that can be inserted into the user manual
     */
    public abstract DirectoryProperty getSnippets();

    /**

 * frac(x) respectively. This is the same definition as used by Excel and by S, it is the Type 7
 * definition in <a
 * href="http://stat.ethz.ch/R-manual/R-devel/library/stats/html/quantile.html">R</a>, and it is
 * described by <a
 * href="http://en.wikipedia.org/wiki/Quantile#Estimating_the_quantiles_of_a_population">

    }

    protected void registerModifiedProperty(String propertyName) {
        __modifiedProperties.addPropertyName(propertyName);
        registerSpecifiedProperty(propertyName); // synchronize if exists, basically for user's manual call
    }

    public void modifiedToSpecified() {
        if (__modifiedProperties.isEmpty()) {
            return; // basically no way when called in Framework (because called when SpecifyColumn exists)
        }

      return Futures.immediateFailedFuture(t);
    }

    @Override
    public void notifyNewValue(@CheckForNull V newValue) {
      if (newValue != null) {
        // The pending load was clobbered by a manual write.
        // Unblock all pending gets, and have them return the new value.
        set(newValue);
      } else {
        // The pending load was removed. Delay notifications until loading completes.

    return delegateCollection().comparator();
  }

  // Override indexOf() and lastIndexOf() to be O(log N) instead of O(N).

  @GwtIncompatible // ImmutableSortedSet.indexOf
  // TODO(cpovirk): consider manual binary search under GWT to preserve O(log N) lookup
  @Override
  public int indexOf(@CheckForNull Object target) {
    int index = delegateCollection().indexOf(target);

            // Dokka Kotlin DSL reference goes into kotlin-dsl/
            task.from(extension.getKotlinDslReference().getRenderedDocumentation(), sub -> sub.into("kotlin-dsl"));

            // User manual goes into userguide/ (for historical reasons)
            task.from(extension.getUserManual().getRenderedDocumentation(), sub -> sub.into("userguide"));

            task.into(extension.getDocumentationRenderedRoot());

    assertFalse(powerSet.contains(null));
    assertFalse(powerSet.contains((Object) "notASet"));
  }

  public void testPowerSetIteration_manual() {
    ImmutableSet<Integer> elements = ImmutableSet.of(1, 2, 3);
    Set<Set<Integer>> powerSet = powerSet(elements);
    // The API doesn't promise this iteration order, but it's convenient here.

      return Futures.immediateFailedFuture(t);
    }

    @Override
    public void notifyNewValue(@CheckForNull V newValue) {
      if (newValue != null) {
        // The pending load was clobbered by a manual write.
        // Unblock all pending gets, and have them return the new value.
        set(newValue);
      } else {
        // The pending load was removed. Delay notifications until loading completes.

        excludedPackages.add("org.gradle.platform.base.test");
        return excludedPackages;
    }

    // TODO: This doesn't really make sense to be part of the user manual generation, but it's so tied up into it
    // it's left here for a future project.
    private void generateDefaultImports(Project project, TaskContainer tasks, GradleDocumentationExtension extension) {

     */
    public abstract ConfigurableFileCollection getRenderedDocumentation();

    // These are all helper methods for configuring the parts of the documentation (DSL ref, javadoc, user manual, etc).
    public ReleaseNotes getReleaseNotes() {
        return releaseNotes;
    }

    public void releaseNotes(Action<? super ReleaseNotes> action) {
        action.execute(releaseNotes);
    }