public function ThemeRegistry::__construct in Drupal 9

Same name and namespace in other branches

1. 8 core/lib/Drupal/Core/Utility/ThemeRegistry.php \Drupal\Core\Utility\ThemeRegistry::__construct()

Constructs a ThemeRegistry object.

Parameters

string $cid: The cid for the array being cached.

\Drupal\Core\Cache\CacheBackendInterface $cache: The cache backend.

\Drupal\Core\Lock\LockBackendInterface $lock: The lock backend.

array $tags: (optional) The tags to specify for the cache item.

bool $modules_loaded: Whether all modules have already been loaded.

Overrides CacheCollector::__construct

File

core/lib/Drupal/Core/Utility/ThemeRegistry.php, line 51

Class

ThemeRegistry

Builds the run-time theme registry.

Namespace

Drupal\Core\Utility

Code

public function __construct($cid, CacheBackendInterface $cache, LockBackendInterface $lock, $tags = [], $modules_loaded = FALSE) {
  $this->cid = $cid;
  $this->cache = $cache;
  $this->lock = $lock;
  $this->tags = $tags;
  $this->persistable = $modules_loaded && \Drupal::hasRequest() && \Drupal::request()
    ->isMethod('GET');

  // @todo: Implement lazyload.
  $this->cacheLoaded = TRUE;
  if ($this->persistable && ($cached = $this->cache
    ->get($this->cid))) {
    $this->storage = $cached->data;
  }
  else {

    // If there is no runtime cache stored, fetch the full theme registry,
    // but then initialize each value to NULL. This allows offsetExists()
    // to function correctly on non-registered theme hooks without triggering
    // a call to resolveCacheMiss().
    $this->storage = $this
      ->initializeRegistry();
    foreach (array_keys($this->storage) as $key) {
      $this
        ->persist($key);
    }

    // RegistryTest::testRaceCondition() ensures that the cache entry is
    // written on the initial construction of the theme registry.
    $this
      ->updateCache();
  }
}