class ClassFinder in Drupal 9

A Utility class that uses active autoloaders to find a file for a class.

Hierarchy

• class \Drupal\Component\ClassFinder\ClassFinder implements ClassFinderInterface

2 files declare their use of ClassFinder

AnnotatedClassDiscoveryAutomatedProviders.php in core/modules/migrate/src/Plugin/Discovery/AnnotatedClassDiscoveryAutomatedProviders.php

ClassFinderTest.php in core/tests/Drupal/Tests/Component/ClassFinder/ClassFinderTest.php

File

core/lib/Drupal/Component/ClassFinder/ClassFinder.php, line 8

Namespace

Drupal\Component\ClassFinder

class ClassFinder implements ClassFinderInterface {

  /**
   * {@inheritdoc}
   */
  public function findFile($class) {
    $loaders = spl_autoload_functions();
    foreach ($loaders as $loader) {
      if (is_array($loader) && isset($loader[0]) && is_object($loader[0]) && method_exists($loader[0], 'findFile')) {
        $file = call_user_func_array([
          $loader[0],
          'findFile',
        ], [
          $class,
        ]);

        // Different implementations return different empty values. For example,
        // \Composer\Autoload\ClassLoader::findFile() returns FALSE whilst
        // \Drupal\Component\ClassFinder\ClassFinderInterface::findFile()
        // documents that a NULL should be returned.
        if (!empty($file)) {
          return $file;
        }
      }
    }
    return NULL;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
ClassFinder::findFile	public	function	Finds a class. Overrides ClassFinderInterface::findFile