The class of a service definition might be passed as parameter.

symfony · derrabus · Jun 29, 2019 · Jun 29, 2019 · af42a0ff8b45ed4edb3f4539fd37ee382721be69
commit af42a0ff8b45ed4edb3f4539fd37ee382721be69
diff --git a/src/Symfony/Component/DependencyInjection/Definition.php b/src/Symfony/Component/DependencyInjection/Definition.php
@@ -51,8 +51,8 @@ class Definition
     private static $defaultDeprecationTemplate = 'The "%service_id%" service is deprecated. You should stop using it, as it will soon be removed.';
 
     /**
-     * @param string|null $class     The service class
-     * @param array       $arguments An array of arguments to pass to the service constructor
+     * @param string|Parameter|null $class     The service class
+     * @param array                 $arguments An array of arguments to pass to the service constructor
      */
     public function __construct($class = null, array $arguments = [])
     {
@@ -157,7 +157,7 @@ public function getDecoratedService()
     /**
      * Sets the service class.
      *
-     * @param string $class The service class
+     * @param string|Parameter|null $class The service class
      *
      * @return $this
      */
@@ -173,7 +173,7 @@ public function setClass($class)
     /**
      * Gets the service class.
      *
-     * @return string|null The service class
+     * @return string|Parameter|null The service class
      */
     public function getClass()
     {

diff --git a/src/Symfony/Component/DependencyInjection/Tests/DefinitionTest.php b/src/Symfony/Component/DependencyInjection/Tests/DefinitionTest.php
@@ -13,6 +13,7 @@
 
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\DependencyInjection\Definition;
+use Symfony\Component\DependencyInjection\Parameter;
 
 class DefinitionTest extends TestCase
 {
@@ -45,6 +46,14 @@ public function testSetGetClass()
         $this->assertEquals('foo', $def->getClass(), '->getClass() returns the class name');
     }
 
+    public function testSetGetClassWithParameter()
+    {
+        $def = new Definition('stdClass');
+        $parameter = new Parameter('foo');
+        $this->assertSame($def, $def->setClass($parameter), '->setClass() implements a fluent interface');
+        $this->assertSame($parameter, $def->getClass(), '->getClass() returns the parameterized class name');
+    }
+
     public function testSetGetDecoratedService()
     {
         $def = new Definition('stdClass');