Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\Core\Cache;
Chris@0: 
Chris@0: /**
Chris@0:  * Trait for \Drupal\Core\Cache\RefinableCacheableDependencyInterface.
Chris@0:  */
Chris@0: trait RefinableCacheableDependencyTrait {
Chris@0: 
Chris@14:   use CacheableDependencyTrait;
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function addCacheableDependency($other_object) {
Chris@0:     if ($other_object instanceof CacheableDependencyInterface) {
Chris@0:       $this->addCacheContexts($other_object->getCacheContexts());
Chris@0:       $this->addCacheTags($other_object->getCacheTags());
Chris@0:       $this->mergeCacheMaxAge($other_object->getCacheMaxAge());
Chris@0:     }
Chris@0:     else {
Chris@0:       // Not a cacheable dependency, this can not be cached.
Chris@0:       $this->cacheMaxAge = 0;
Chris@0:     }
Chris@0:     return $this;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function addCacheContexts(array $cache_contexts) {
Chris@0:     if ($cache_contexts) {
Chris@0:       $this->cacheContexts = Cache::mergeContexts($this->cacheContexts, $cache_contexts);
Chris@0:     }
Chris@0:     return $this;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function addCacheTags(array $cache_tags) {
Chris@0:     if ($cache_tags) {
Chris@0:       $this->cacheTags = Cache::mergeTags($this->cacheTags, $cache_tags);
Chris@0:     }
Chris@0:     return $this;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function mergeCacheMaxAge($max_age) {
Chris@0:     $this->cacheMaxAge = Cache::mergeMaxAges($this->cacheMaxAge, $max_age);
Chris@0:     return $this;
Chris@0:   }
Chris@0: 
Chris@0: }