For most services, plugin and controllers DCG asks a user which services he would like to inject.
That allows to save a user form typing a lot of boilerplate code. However times have changed. PHP improved the type system and implemented property promotions. Drupal added support for service auto-wiring.
Here is example of a service in Drupal 8 style. Imagine how it would look if it had say 5 dependencies.
example:
class: Drupal\example\Example
arguments: ['@entity_type.manager'
<?php
namespace Drupal\example;
use Drupal\Core\Entity\EntityTypeManagerInterface
/**
* The example service.
*/
class Example implements ExampleInterface {
/**
* The entity type manager service.
*
* @var \Drupal\Core\Entity\EntityTypeManagerInterface
*/
protected $entityTypeManager;
/**
* The object constructor.
*
* @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
* The entity type manager service.
*/
public function __construct(EntityTypeManagerInterface $entity_type_manager) {
$this->entityTypeManager = $entity_type_manager;
}
}Here is the same service in Drupal 11 style.
<?php
namespace Drupal\example;
use Drupal\Core\Entity\EntityTypeManagerInterface;
/**
* The example service.
*/
final class Example implements ExampleInterface {
/**
* The object constructor.
*/
public function __construct(private EntityTypeManagerInterface $entity_type_manager) { }
}From the above example seems that asking a user to provide dependencies for a service does not make much sense this times. It can easily add them to the generated code later.
For most services, plugin and controllers DCG asks a user which services he would like to inject.
That allows to save a user form typing a lot of boilerplate code. However times have changed. PHP improved the type system and implemented property promotions. Drupal added support for service auto-wiring.
Here is example of a service in Drupal 8 style. Imagine how it would look if it had say 5 dependencies.
Here is the same service in Drupal 11 style.
From the above example seems that asking a user to provide dependencies for a service does not make much sense this times. It can easily add them to the generated code later.