bug #18467 [DependencyInjection] Resolve aliases before removing abstract services + add tests (nicolas-grekas)

This PR was merged into the 2.3 branch.

Discussion
----------

[DependencyInjection] Resolve aliases before removing abstract services + add tests

| Q             | A
| ------------- | ---
| Branch?       | 2.3
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Commits
-------

9802a41 [DependencyInjection] Resolve aliases before removing abstract services + add tests

src/Symfony/Component/DependencyInjection/Compiler/PassConfig.php

@@ -59,8 +59,8 @@ class PassConfig
 
         $this->removingPasses = array(
             new RemovePrivateAliasesPass(),
-            new RemoveAbstractDefinitionsPass(),
             new ReplaceAliasByActualDefinitionPass(),
+            new RemoveAbstractDefinitionsPass(),
             new RepeatedPass(array(
                 new AnalyzeServiceReferencesPass(),
                 new InlineServiceDefinitionsPass(),
@@ -103,8 +103,7 @@ class PassConfig
             throw new InvalidArgumentException(sprintf('Invalid type "%s".', $type));
         }
 
-        $passes = &$this->$property;
-        $passes[] = $pass;
+        $this->{$property}[] = $pass;
     }
 
     /**

src/Symfony/Component/DependencyInjection/Tests/ContainerBuilderTest.php

@@ -707,6 +707,21 @@ class ContainerBuilderTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals(array($second, $first), $configs);
     }
 
+    public function testAbstractAlias()
+    {
+        $container = new ContainerBuilder();
+
+        $abstract = new Definition('AbstractClass');
+        $abstract->setAbstract(true);
+
+        $container->setDefinition('abstract_service', $abstract);
+        $container->setAlias('abstract_alias', 'abstract_service');
+
+        $container->compile();
+
+        $this->assertSame('abstract_service', (string) $container->getAlias('abstract_alias'));
+    }
+
     public function testLazyLoadedService()
     {
         $loader = new ClosureLoader($container = new ContainerBuilder());

src/Symfony/Component/DependencyInjection/Tests/Fixtures/xml/services5.xml

@@ -14,8 +14,12 @@
         </service>
       </argument>
       <property name="p" type="service">
-        <service class="BazClass" />
+        <service class="BuzClass" />
       </property>
     </service>
+    <service id="bar" parent="foo" />
+    <service class="BizClass">
+        <tag name="biz_tag" />
+    </service>
   </services>
 </container>

src/Symfony/Component/DependencyInjection/Tests/Loader/XmlFileLoaderTest.php

@@ -121,7 +121,7 @@ class XmlFileLoaderTest extends \PHPUnit_Framework_TestCase
         $loader = new XmlFileLoader($container, new FileLocator(self::$fixturesPath.'/xml'));
         $loader->load('services5.xml');
         $services = $container->getDefinitions();
-        $this->assertCount(4, $services, '->load() attributes unique ids to anonymous services');
+        $this->assertCount(6, $services, '->load() attributes unique ids to anonymous services');
 
         // anonymous service as an argument
         $args = $services['foo']->getArguments();
@@ -130,6 +130,7 @@ class XmlFileLoaderTest extends \PHPUnit_Framework_TestCase
         $this->assertTrue(isset($services[(string) $args[0]]), '->load() makes a reference to the created ones');
         $inner = $services[(string) $args[0]];
         $this->assertEquals('BarClass', $inner->getClass(), '->load() uses the same configuration as for the anonymous ones');
+        $this->assertFalse($inner->isPublic());
 
         // inner anonymous services
         $args = $inner->getArguments();
@@ -138,6 +139,7 @@ class XmlFileLoaderTest extends \PHPUnit_Framework_TestCase
         $this->assertTrue(isset($services[(string) $args[0]]), '->load() makes a reference to the created ones');
         $inner = $services[(string) $args[0]];
         $this->assertEquals('BazClass', $inner->getClass(), '->load() uses the same configuration as for the anonymous ones');
+        $this->assertFalse($inner->isPublic());
 
         // anonymous service as a property
         $properties = $services['foo']->getProperties();
@@ -145,7 +147,25 @@ class XmlFileLoaderTest extends \PHPUnit_Framework_TestCase
         $this->assertInstanceOf('Symfony\\Component\\DependencyInjection\\Reference', $property, '->load() converts anonymous services to references to "normal" services');
         $this->assertTrue(isset($services[(string) $property]), '->load() makes a reference to the created ones');
         $inner = $services[(string) $property];
-        $this->assertEquals('BazClass', $inner->getClass(), '->load() uses the same configuration as for the anonymous ones');
+        $this->assertEquals('BuzClass', $inner->getClass(), '->load() uses the same configuration as for the anonymous ones');
+        $this->assertFalse($inner->isPublic());
+
+        // "wild" service
+        $service = $container->findTaggedServiceIds('biz_tag');
+        $this->assertCount(1, $service);
+
+        foreach ($service as $id => $tag) {
+            $service = $container->getDefinition($id);
+        }
+        $this->assertEquals('BizClass', $service->getClass(), '->load() uses the same configuration as for the anonymous ones');
+        $this->assertFalse($service->isPublic());
+
+        // anonymous services are shared when using decoration definitions
+        $container->compile();
+        $services = $container->getDefinitions();
+        $fooArgs = $services['foo']->getArguments();
+        $barArgs = $services['bar']->getArguments();
+        $this->assertSame($fooArgs[0], $barArgs[0]);
     }
 
     public function testLoadServices()