[DependencyInjection] add explanation for attribute option in factories.rst

service_container/factories.rst

@@ -39,6 +39,19 @@ create its object:
 
 .. configuration-block::
 
+    .. code-block:: php-attributes
+
+        // src/Email/NewsletterManager.php
+        namespace App\Email;
+
+        use Symfony\Component\DependencyInjection\Attribute\Autoconfigure;
+
+        // the first argument is the class and the second argument is the static method
+        #[Autoconfigure(factory: ['App\Email\NewsletterManagerStaticFactory', 'createNewsletterManager'])]
+        class NewsletterManager
+        {
+        }
+
     .. code-block:: yaml
 
         # config/services.yaml
@@ -121,6 +134,18 @@ You can omit the class on the factory declaration:
 
 .. configuration-block::
 
+    .. code-block:: php-attributes
+
+        // src/Email/NewsletterManager.php
+        namespace App\Email;
+
+        use Symfony\Component\DependencyInjection\Attribute\Autoconfigure;
+
+        #[Autoconfigure(bind: ['$sender' => '[email protected]'], factory: [null, 'createNewsletterManager'])]
+        class NewsletterManager
+        {
+        }
+
     .. code-block:: yaml
 
         # config/services.yaml
@@ -239,6 +264,21 @@ Configuration of the service container then looks like this:
 
 .. configuration-block::
 
+    .. code-block:: php-attributes
+
+        // src/Email/NewsletterManager.php
+        namespace App\Email;
+
+        use Symfony\Component\DependencyInjection\Attribute\Autoconfigure;
+
+        // it's necessary to create a service for the factory
+        // use the factory service as the first argument of the 'factory'
+        // option and the factory method as the second argument
+        #[Autoconfigure(factory: ['@App\Email\NewsletterManagerFactory', 'createNewsletterManager'])]
+        class NewsletterManager
+        {
+        }
+
     .. code-block:: yaml
 
         # config/services.yaml
@@ -325,6 +365,18 @@ method name:
 
 .. configuration-block::
 
+    .. code-block:: php-attributes
+
+        // src/Email/NewsletterManager.php
+        namespace App\Email;
+
+        use Symfony\Component\DependencyInjection\Attribute\Autoconfigure;
+
+        #[Autoconfigure(factory: '@App\Email\InvokableNewsletterManagerFactory')]
+        class NewsletterManager
+        {
+        }
+
     .. code-block:: yaml
 
         # config/services.yaml
@@ -378,6 +430,20 @@ e.g. change the service based on a parameter:
 
 .. configuration-block::
 
+    .. code-block:: php-attributes
+
+        // src/Email/NewsletterManager.php
+        namespace App\Email;
+
+        use Symfony\Component\DependencyInjection\Attribute\Autoconfigure;
+
+        // use the "tracable_newsletter" service when debug is enabled, "newsletter" otherwise.
+        // "@=" indicates that this is an expression
+        #[Autoconfigure(factory: '@=parameter("kernel.debug") ? service("tracable_newsletter") : service("newsletter")')]
+        interface NewsletterManagerInterface
+        {
+        }
+
     .. code-block:: yaml
 
         # config/services.yaml
@@ -457,6 +523,18 @@ previous examples takes the ``templating`` service as an argument:
 
 .. configuration-block::
 
+    .. code-block:: php-attributes
+
+        // src/Email/NewsletterManager.php
+        namespace App\Email;
+
+        use Symfony\Component\DependencyInjection\Attribute\Autoconfigure;
+
+        #[Autoconfigure(bind: ['$template', '@templating'], factory: ['@App\Email\NewsletterManagerFactory', 'createNewsletterManager'])]
+        class NewsletterManager
+        {
+        }
+
     .. code-block:: yaml
 
         # config/services.yaml