Same name and namespace in other branches
  1. 8.9.x core/lib/Drupal.php \Drupal::classResolver()
  2. 9 core/lib/Drupal.php \Drupal::classResolver()

Retrieves the class resolver.

This is to be used in procedural code such as module files to instantiate an object of a class that implements \Drupal\Core\DependencyInjection\ContainerInjectionInterface.

One common use case is to provide a class which contains the actual code of a hook implementation, without having to create a service.

Parameters

string $class: (optional) A class name to instantiate.

Return value

\Drupal\Core\DependencyInjection\ClassResolverInterface|object The class resolver or if $class is provided, a class instance with a given class definition.

Throws

\InvalidArgumentException If $class does not exist.

50 calls to Drupal::classResolver()
block_content_post_update_revision_type in core/modules/block_content/block_content.post_update.php
Update configuration for revision type.
block_content_post_update_sort_permissions in core/modules/block_content/block_content.post_update.php
Update permissions for users with "administer blocks" permission.
ckeditor5_post_update_code_block in core/modules/ckeditor5/ckeditor5.post_update.php
Updates Text Editors using CKEditor 5 Code Block.
ckeditor5_post_update_image_toolbar_item in core/modules/ckeditor5/ckeditor5.post_update.php
The image toolbar item changed from `uploadImage` to `drupalInsertImage`.
ckeditor5_post_update_list_multiblock in core/modules/ckeditor5/ckeditor5.post_update.php
Updates Text Editors using CKEditor 5.

... See full list

File

core/lib/Drupal.php, line 364

Class

Drupal
Static Service Container wrapper.

Code

public static function classResolver($class = NULL) {
  if ($class) {
    return static::getContainer()
      ->get('class_resolver')
      ->getInstanceFromDefinition($class);
  }
  return static::getContainer()
    ->get('class_resolver');
}