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setMaxDepth example

public function getParentSelectOptions($id = '', array $menus = NULL, CacheableMetadata &$cacheability = NULL) {
    if (!isset($menus)) {
      $menus = $this->getMenuOptions();
    }

    $options = [];
    $depth_limit = $this->getParentDepthLimit($id);
    foreach ($menus as $menu_name => $menu_title) {
      $options[$menu_name . ':'] = '<' . $menu_title . '>';

      $parameters = new MenuTreeParameters();
      $parameters->setMaxDepth($depth_limit);
      $tree = $this->menuLinkTree->load($menu_name, $parameters);
      $manipulators = [
        ['callable' => 'menu.default_tree_manipulators:checkNodeAccess'],
        ['callable' => 'menu.default_tree_manipulators:checkAccess'],
        ['callable' => 'menu.default_tree_manipulators:generateIndexAndSort'],
      ];
      $tree = $this->menuLinkTree->transform($tree, $manipulators);
      $this->parentSelectOptionsTreeWalk($tree, $menu_name, '--', $options, $id, $depth_limit, $cacheability);
    }
    return $options;
  }

foreach ($classGroups as $group) {
                    $attributesMetadata[$property->name]->addGroup($group);
                }

                foreach ($this->loadAnnotations($property) as $annotation) {
                    if ($annotation instanceof Groups) {
                        foreach ($annotation->getGroups() as $group) {
                            $attributesMetadata[$property->name]->addGroup($group);
                        }
                    } elseif ($annotation instanceof MaxDepth) {
                        $attributesMetadata[$property->name]->setMaxDepth($annotation->getMaxDepth());
                    } elseif ($annotation instanceof SerializedName) {
                        $attributesMetadata[$property->name]->setSerializedName($annotation->getSerializedName());
                    } elseif ($annotation instanceof SerializedPath) {
                        $attributesMetadata[$property->name]->setSerializedPath($annotation->getSerializedPath());
                    } elseif ($annotation instanceof Ignore) {
                        $attributesMetadata[$property->name]->setIgnore(true);
                    } elseif ($annotation instanceof Context) {
                        $this->setAttributeContextsForGroups($annotation, $attributesMetadata[$property->name]);
                    }

                    $loaded = true;
                }

$attributeMetadata = new AttributeMetadata('group');
        $attributeMetadata->addGroup('a');
        $attributeMetadata->addGroup('a');
        $attributeMetadata->addGroup('b');

        $this->assertEquals(['a', 'b'], $attributeMetadata->getGroups());
    }

    public function testMaxDepth()
    {
        $attributeMetadata = new AttributeMetadata('name');
        $attributeMetadata->setMaxDepth(69);

        $this->assertEquals(69, $attributeMetadata->getMaxDepth());
    }

    public function testSerializedName()
    {
        $attributeMetadata = new AttributeMetadata('name');
        $attributeMetadata->setSerializedName('serialized_name');

        $this->assertEquals('serialized_name', $attributeMetadata->getSerializedName());
    }

                        $attributeMetadata->addGroup($group);
                    }
                }

                if (isset($data['max_depth'])) {
                    if (!\is_int($data['max_depth'])) {
                        throw new MappingException(sprintf('The "max_depth" value must be an integer in "%s" for the attribute "%s" of the class "%s".', $this->file, $attribute, $classMetadata->getName()));
                    }

                    $attributeMetadata->setMaxDepth($data['max_depth']);
                }

                if (isset($data['serialized_name'])) {
                    if (!\is_string($data['serialized_name']) || '' === $data['serialized_name']) {
                        throw new MappingException(sprintf('The "serialized_name" value must be a non-empty string in "%s" for the attribute "%s" of the class "%s".', $this->file, $attribute, $classMetadata->getName()));
                    }

                    $attributeMetadata->setSerializedName($data['serialized_name']);
                }

                if (isset($data['serialized_path'])) {

$this->assertEquals(1, $parameters->minDepth);
  }

  /** * @covers ::serialize * @covers ::unserialize */
  public function testSerialize() {
    $parameters = new MenuTreeParameters();
    $parameters->setRoot(1);
    $parameters->setMinDepth('2');
    $parameters->setMaxDepth('9');
    $parameters->addExpandedParents(['', 'foo']);
    $parameters->setActiveTrail(['', 'bar']);

    $after_serialize = unserialize(serialize($parameters));
    $this->assertSame('1', $after_serialize->root);
    $this->assertSame(2, $after_serialize->minDepth);
    $this->assertSame(9, $after_serialize->maxDepth);
    $this->assertSame(['', 'foo'], $after_serialize->expandedParents);
    $this->assertSame(['bar'], $after_serialize->activeTrail);
  }

}

    // Adjust the menu tree parameters based on the block's configuration.     $level = $this->configuration['level'];
    $depth = $this->configuration['depth'];
    $parameters->setMinDepth($level);
    // When the depth is configured to zero, there is no depth limit. When depth     // is non-zero, it indicates the number of levels that must be displayed.     // Hence this is a relative depth that we must convert to an actual     // (absolute) depth, that may never exceed the maximum depth.     if ($depth > 0) {
      $parameters->setMaxDepth(min($level + $depth - 1, $this->menuTree->maxDepth()));
    }

    // For menu blocks with start level greater than 1, only show menu items     // from the current active trail. Adjust the root according to the current     // position in the menu in order to determine if we can show the subtree.     if ($level > 1) {
      if (count($parameters->activeTrail) >= $level) {
        // Active trail array is child-first. Reverse it, and pull the new menu         // root based on the parent of the configured start level.         $menu_trail_ids = array_reverse(array_values($parameters->activeTrail));
        $menu_root = $menu_trail_ids[$level - 1];

    // The next p column should not be empty. This excludes the root link.     $query->condition("p$i", 0, '>');
    return $this->safeExecuteSelect($query)->fetchAllKeyed(0, 0);
  }

  /** * {@inheritdoc} */
  public function loadAllChildren($id, $max_relative_depth = NULL) {
    $parameters = new MenuTreeParameters();
    $parameters->setRoot($id)->excludeRoot()->setMaxDepth($max_relative_depth)->onlyEnabledLinks();
    $links = $this->loadLinks(NULL, $parameters);
    foreach ($links as $id => $link) {
      $links[$id] = $this->prepareLink($link);
    }
    return $links;
  }

  /** * Prepares the data for calling $this->treeDataRecursive(). */
  protected function doBuildTreeData(array $links, array $parents = [], $depth = 1) {

  public static function preRenderAdministrationTray(array $element) {
    $menu_tree = \Drupal::service('toolbar.menu_tree');
    // Load the administrative menu. The first level is the "Administration"     // link. In order to load the children of that link, start and end on the     // second level.     $parameters = new MenuTreeParameters();
    $parameters->setMinDepth(2)->setMaxDepth(2)->onlyEnabledLinks();
    // @todo Make the menu configurable in https://www.drupal.org/node/1869638.     $tree = $menu_tree->load('admin', $parameters);
    $manipulators = [
      ['callable' => 'menu.default_tree_manipulators:checkAccess'],
      ['callable' => 'menu.default_tree_manipulators:generateIndexAndSort'],
      ['callable' => 'toolbar_menu_navigation_links'],
    ];
    $tree = $menu_tree->transform($tree, $manipulators);
    $element['administration_menu'] = $menu_tree->build($tree);
    return $element;
  }

    private int $minDepth = 0;

    /** * @param \RecursiveIteratorIterator<\RecursiveIterator<TKey, TValue>> $iterator The Iterator to filter * @param int $minDepth The min depth * @param int $maxDepth The max depth */
    public function __construct(\RecursiveIteratorIterator $iterator, int $minDepth = 0, int $maxDepth = \PHP_INT_MAX)
    {
        $this->minDepth = $minDepth;
        $iterator->setMaxDepth(\PHP_INT_MAX === $maxDepth ? -1 : $maxDepth);

        parent::__construct($iterator);
    }

    /** * Filters the iterator values. */
    public function accept(): bool
    {
        return $this->getInnerIterator()->getDepth() >= $this->minDepth;
    }
}

$attributeMetadata = $attributesMetadata[$attributeName];
                } else {
                    $attributeMetadata = new AttributeMetadata($attributeName);
                    $classMetadata->addAttributeMetadata($attributeMetadata);
                }

                foreach ($attribute->group as $group) {
                    $attributeMetadata->addGroup((string) $group);
                }

                if (isset($attribute['max-depth'])) {
                    $attributeMetadata->setMaxDepth((int) $attribute['max-depth']);
                }

                if (isset($attribute['serialized-name'])) {
                    $attributeMetadata->setSerializedName((string) $attribute['serialized-name']);
                }

                if (isset($attribute['serialized-path'])) {
                    try {
                        $attributeMetadata->setSerializedPath(new PropertyPath((string) $attribute['serialized-path']));
                    } catch (InvalidPropertyPathException) {
                        throw new MappingException(sprintf('The "serialized-path" value must be a valid property path for the attribute "%s" of the class "%s".', $attributeName, $classMetadata->getName()));
                    }

$attributesMetadata[$property->name] = new AttributeMetadata($property->name);
                $classMetadata->addAttributeMetadata($attributesMetadata[$property->name]);
            }

            if ($property->getDeclaringClass()->name === $className) {
                foreach ($this->loadAnnotations($property) as $annotation) {
                    if ($annotation instanceof Groups) {
                        foreach ($annotation->getGroups() as $group) {
                            $attributesMetadata[$property->name]->addGroup($group);
                        }
                    } elseif ($annotation instanceof MaxDepth) {
                        $attributesMetadata[$property->name]->setMaxDepth($annotation->getMaxDepth());
                    } elseif ($annotation instanceof SerializedName) {
                        $attributesMetadata[$property->name]->setSerializedName($annotation->getSerializedName());
                    } elseif ($annotation instanceof SerializedPath) {
                        $attributesMetadata[$property->name]->setSerializedPath($annotation->getSerializedPath());
                    } elseif ($annotation instanceof Ignore) {
                        $attributesMetadata[$property->name]->setIgnore(true);
                    } elseif ($annotation instanceof Context) {
                        $this->setAttributeContextsForGroups($annotation, $attributesMetadata[$property->name]);
                    }

                    $loaded = true;
                }

public function onlyEnabledLinks() {
    $this->addCondition('enabled', 1);
    return $this;
  }

  /** * Ensures only the top level of the tree is loaded. * * @return $this */
  public function setTopLevelOnly() {
    $this->setMaxDepth(1);
    return $this;
  }

  /** * Excludes the root menu link from the tree. * * Note that this is only necessary when you specified a custom root, because * the normal root ID is the empty string, '', which does not correspond to an * actual menu link. Hence when loading a menu link tree without specifying a * custom root the tree will start at the children even if this method has not * been called. * * @return $this */

$cmd = array_map('escapeshellarg', $argv);
$exit = 0;

if (isset($argv[1]) && 'symfony' === $argv[1] && !file_exists('symfony') && file_exists('src/Symfony')) {
    $argv[1] = 'src/Symfony';
}
if (isset($argv[1]) && is_dir($argv[1]) && !file_exists($argv[1].'/phpunit.xml.dist')) {
    // Find Symfony components in plain php for Windows portability
    $finder = new RecursiveDirectoryIterator($argv[1], FilesystemIterator::KEY_AS_FILENAME | FilesystemIterator::UNIX_PATHS);
    $finder = new RecursiveIteratorIterator($finder);
    $finder->setMaxDepth(getenv('SYMFONY_PHPUNIT_MAX_DEPTH') ?: 3);

    foreach ($finder as $file => $fileInfo) {
        if ('phpunit.xml.dist' === $file) {
            $components[] = dirname($fileInfo->getPathname());
        }
    }
    if ($components) {
        array_shift($cmd);
    }
}