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   1  <?php declare(strict_types=1);
   2  
   3  namespace DOMWrap\Traits;
   4  
   5  use DOMWrap\NodeList;
   6  
   7  /**
   8   * Node Trait
   9   *
  10   * @package DOMWrap\Traits
  11   * @license http://opensource.org/licenses/BSD-3-Clause BSD 3 Clause
  12   * @property \DOMDocument $ownerDocument
  13   */
  14  trait NodeTrait
  15  {
  16      /**
  17       * @return NodeList
  18       */
  19      public function collection(): NodeList {
  20          return $this->newNodeList([$this]);
  21      }
  22  
  23      /**
  24       * @return \DOMDocument
  25       */
  26      public function document(): ?\DOMDocument {
  27          if ($this->isRemoved()) {
  28              return null;
  29          }
  30  
  31          return $this->ownerDocument;
  32      }
  33  
  34      /**
  35       * @param NodeList $nodeList
  36       *
  37       * @return NodeList|\DOMNode|null
  38       */
  39      public function result(NodeList $nodeList) {
  40          if ($nodeList->count()) {
  41              return $nodeList->first();
  42          }
  43  
  44          return null;
  45      }
  46  }