[DependencyInjection] Add ContainerBuilder::registerChild() shortcut method

HypeMC · HypeMC · commit bf06aa9b3a4c · 2024-08-13T20:17:06.000+02:00
diff --git a/src/Symfony/Component/DependencyInjection/CHANGELOG.md b/src/Symfony/Component/DependencyInjection/CHANGELOG.md
@@ -5,6 +5,7 @@ CHANGELOG
 ---
 
  * Deprecate `!tagged` tag, use `!tagged_iterator` instead
+ * Add a `ContainerBuilder::registerChild()` shortcut method for registering child definitions
 
 7.1
 ---
diff --git a/src/Symfony/Component/DependencyInjection/ContainerBuilder.php b/src/Symfony/Component/DependencyInjection/ContainerBuilder.php
@@ -937,6 +937,17 @@ public function register(string $id, ?string $class = null): Definition
         return $this->setDefinition($id, new Definition($class));
     }
 
+    /**
+     * Registers a service definition.
+     *
+     * This method allows for simple registration of service definition
+     * with a fluid interface.
+     */
+    public function registerChild(string $id, string $parent): ChildDefinition
+    {
+        return $this->setDefinition($id, new ChildDefinition($parent));
+    }
+
     /**
      * Registers an autowired service definition.
      *
diff --git a/src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php b/src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php
@@ -216,6 +216,16 @@ public function testRegister()
         $this->assertInstanceOf(Definition::class, $builder->getDefinition('foo'), '->register() returns the newly created Definition instance');
     }
 
+    public function testRegisterChild()
+    {
+        $builder = new ContainerBuilder();
+        $builder->register('foo', 'Bar\FooClass');
+        $builder->registerChild('bar', 'foo');
+        $this->assertTrue($builder->hasDefinition('bar'), '->registerChild() registers a new service definition');
+        $this->assertInstanceOf(ChildDefinition::class, $definition = $builder->getDefinition('bar'), '->registerChild() returns the newly created ChildDefinition instance');
+        $this->assertSame('foo', $definition->getParent(), '->registerChild() registers a new child service definition with the parent set');
+    }
+
     public function testAutowire()
     {
         $builder = new ContainerBuilder();
