[DependencyInjection] Fix tags on multiple decorated service

Author: Soner Sayakci

Compiler/DecoratorServicePass.php

@@ -34,6 +34,7 @@ public function process(ContainerBuilder $container)
             }
             $definitions->insert(array($id, $definition), array($decorated[2], --$order));
         }
+        $decoratingDefinitions = array();
 
         foreach ($definitions as list($id, $definition)) {
             list($inner, $renamedId) = $definition->getDecoratedService();
@@ -53,18 +54,25 @@ public function process(ContainerBuilder $container)
                 $container->setAlias($renamedId, new Alias($container->normalizeId($alias), false));
             } else {
                 $decoratedDefinition = $container->getDefinition($inner);
-                $definition->setTags(array_merge($decoratedDefinition->getTags(), $definition->getTags()));
-                if ($types = array_merge($decoratedDefinition->getAutowiringTypes(false), $definition->getAutowiringTypes(false))) {
-                    $definition->setAutowiringTypes($types);
-                }
                 $public = $decoratedDefinition->isPublic();
                 $private = $decoratedDefinition->isPrivate();
                 $decoratedDefinition->setPublic(false);
-                $decoratedDefinition->setTags(array());
-                if ($decoratedDefinition->getAutowiringTypes(false)) {
-                    $decoratedDefinition->setAutowiringTypes(array());
-                }
                 $container->setDefinition($renamedId, $decoratedDefinition);
+                $decoratingDefinitions[$inner] = $decoratedDefinition;
+            }
+
+            if (isset($decoratingDefinitions[$inner])) {
+                $decoratingDefinition = $decoratingDefinitions[$inner];
+                $definition->setTags(array_merge($decoratingDefinition->getTags(), $definition->getTags()));
+                $autowiringTypes = $decoratingDefinition->getAutowiringTypes(false);
+                if ($types = array_merge($autowiringTypes, $definition->getAutowiringTypes(false))) {
+                    $definition->setAutowiringTypes($types);
+                }
+                $decoratingDefinition->setTags(array());
+                if ($autowiringTypes) {
+                    $decoratingDefinition->setAutowiringTypes(array());
+                }
+                $decoratingDefinitions[$inner] = $definition;
             }
 
             $container->setAlias($inner, $id)->setPublic($public)->setPrivate($private);

Tests/Compiler/DecoratorServicePassTest.php

@@ -168,6 +168,29 @@ public function testProcessMergesAutowiringTypesInDecoratingDefinitionAndRemoveT
         $this->assertEmpty($container->getDefinition('child.inner')->getAutowiringTypes());
     }
 
+    public function testProcessMovesTagsFromDecoratedDefinitionToDecoratingDefinitionMultipleTimes()
+    {
+        $container = new ContainerBuilder();
+        $container
+            ->register('foo')
+            ->setPublic(true)
+            ->setTags(array('bar' => array('attr' => 'baz')))
+        ;
+        $container
+            ->register('deco1')
+            ->setDecoratedService('foo', null, 50)
+        ;
+        $container
+            ->register('deco2')
+            ->setDecoratedService('foo', null, 2)
+        ;
+
+        $this->process($container);
+
+        $this->assertEmpty($container->getDefinition('deco1')->getTags());
+        $this->assertEquals(array('bar' => array('attr' => 'baz')), $container->getDefinition('deco2')->getTags());
+    }
+
     protected function process(ContainerBuilder $container)
     {
         $repeatedPass = new DecoratorServicePass();