bug #19643 [DependencyInjection] Fix service autowiring inheritance (chalasr)

This PR was merged into the 2.8 branch.

Discussion
----------

[DependencyInjection] Fix service autowiring inheritance

| Q             | A
| ------------- | ---
| Branch?       | 2.8
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #19615
| License       | MIT
| Doc PR        | n/a

This makes services inherit the `autowire` attribute from their parent and fix the ability to override it from the child.

Fixed cases:

- Simple inheritance
```yaml
parent:
    class: Foo
    abstract: true
    autowire: true

child:
    class: Foo
```

- Set in the child (only)
```yaml
parent:
    class: Foo
    abstract: true

child:
    class: Foo
    autowire: true
```

- Set in the parent, changed in the child
```yaml
parent:
    class: Foo
    abstract: true
    autowire: true

child:
    class: Foo
    autowire: false
```

Commits
-------

fb95bdc [DIC] Fix service autowiring inheritance

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

@@ -136,6 +136,7 @@ class ResolveDefinitionTemplatesPass implements CompilerPassInterface
         $def->setFile($parentDef->getFile());
         $def->setPublic($parentDef->isPublic());
         $def->setLazy($parentDef->isLazy());
+        $def->setAutowired($parentDef->isAutowired());
 
         // overwrite with values specified in the decorator
         $changes = $definition->getChanges();
@@ -169,6 +170,9 @@ class ResolveDefinitionTemplatesPass implements CompilerPassInterface
         if (isset($changes['deprecated'])) {
             $def->setDeprecated($definition->isDeprecated(), $definition->getDeprecationMessage('%service_id%'));
         }
+        if (isset($changes['autowire'])) {
+            $def->setAutowired($definition->isAutowired());
+        }
         if (isset($changes['decorated_service'])) {
             $decoratedService = $definition->getDecoratedService();
             if (null === $decoratedService) {

src/Symfony/Component/DependencyInjection/DefinitionDecorator.php

@@ -164,6 +164,16 @@ class DefinitionDecorator extends Definition
         return parent::setDeprecated($boolean, $template);
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function setAutowired($autowired)
+    {
+        $this->changes['autowire'] = true;
+
+        return parent::setAutowired($autowired);
+    }
+
     /**
      * Gets an argument to pass to the service constructor/factory method.
      *

src/Symfony/Component/DependencyInjection/Tests/Compiler/ResolveDefinitionTemplatesPassTest.php

@@ -233,6 +233,36 @@ class ResolveDefinitionTemplatesPassTest extends \PHPUnit_Framework_TestCase
         $this->assertTrue($container->getDefinition('child1')->isLazy());
     }
 
+    public function testSetAutowiredOnServiceHasParent()
+    {
+        $container = new ContainerBuilder();
+
+        $container->register('parent', 'stdClass');
+
+        $container->setDefinition('child1', new DefinitionDecorator('parent'))
+            ->setAutowired(true)
+        ;
+
+        $this->process($container);
+
+        $this->assertTrue($container->getDefinition('child1')->isAutowired());
+    }
+
+    public function testSetAutowiredOnServiceIsParent()
+    {
+        $container = new ContainerBuilder();
+
+        $container->register('parent', 'stdClass')
+            ->setAutowired(true)
+        ;
+
+        $container->setDefinition('child1', new DefinitionDecorator('parent'));
+
+        $this->process($container);
+
+        $this->assertTrue($container->getDefinition('child1')->isAutowired());
+    }
+
     public function testDeepDefinitionsResolving()
     {
         $container = new ContainerBuilder();

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

@@ -95,6 +95,16 @@ class DefinitionDecoratorTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals(array('lazy' => true), $def->getChanges());
     }
 
+    public function testSetAutowired()
+    {
+        $def = new DefinitionDecorator('foo');
+
+        $this->assertFalse($def->isAutowired());
+        $this->assertSame($def, $def->setAutowired(false));
+        $this->assertFalse($def->isAutowired());
+        $this->assertEquals(array('autowire' => true), $def->getChanges());
+    }
+
     public function testSetArgument()
     {
         $def = new DefinitionDecorator('foo');