[DependencyInjection] removed hard dependency on the Config component

The Config component is a hard dependency for the loaders (but loaders
themselves are optional); all other classes should not have a hard dep
on Config. The introduction of a new flag allows to remove this
dependency.

This commit also fixes skipped test dependencies.

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

@@ -43,6 +43,7 @@ public function process(ContainerBuilder $container)
             $config = $container->getParameterBag()->resolveValue($config);
 
             $tmpContainer = new ContainerBuilder($container->getParameterBag());
+            $tmpContainer->setResourceTracking($container->isTrackingResources());
             $tmpContainer->addObjectResource($extension);
 
             $extension->load($config, $tmpContainer);

src/Symfony/Component/DependencyInjection/ContainerBuilder.php

@@ -63,6 +63,31 @@ class ContainerBuilder extends Container implements TaggedContainerInterface
      */
     private $compiler;
 
+    private $trackResources = true;
+
+    /**
+     * Sets the track resources flag.
+     *
+     * If you are not using the loaders and therefore don't want
+     * to depend on the Config component, set this flag to false.
+     *
+     * @param Boolean $track true if you want to track resources, false otherwise
+     */
+    public function setResourceTracking($track)
+    {
+        $this->trackResources = (Boolean) $track;
+    }
+
+    /**
+     * Checks if resources are tracked.
+     *
+     * @return Boolean true if resources are tracked, false otherwise
+     */
+    public function isTrackingResources()
+    {
+        return $this->trackResources;
+    }
+
     /**
      * Registers an extension.
      *
@@ -152,6 +177,10 @@ public function getResources()
      */
     public function addResource(ResourceInterface $resource)
     {
+        if (!$this->trackResources) {
+            return $this;
+        }
+
         $this->resources[] = $resource;
 
         return $this;
@@ -168,6 +197,10 @@ public function addResource(ResourceInterface $resource)
      */
     public function setResources(array $resources)
     {
+        if (!$this->trackResources) {
+            return $this;
+        }
+
         $this->resources = $resources;
 
         return $this;
@@ -184,6 +217,10 @@ public function setResources(array $resources)
      */
     public function addObjectResource($object)
     {
+        if (!$this->trackResources) {
+            return $this;
+        }
+
         $parent = new \ReflectionObject($object);
         do {
             $this->addResource(new FileResource($parent->getFileName()));
@@ -434,8 +471,10 @@ public function merge(ContainerBuilder $container)
         $this->addAliases($container->getAliases());
         $this->getParameterBag()->add($container->getParameterBag()->all());
 
-        foreach ($container->getResources() as $resource) {
-            $this->addResource($resource);
+        if ($this->trackResources) {
+            foreach ($container->getResources() as $resource) {
+                $this->addResource($resource);
+            }
         }
 
         foreach ($this->extensions as $name => $extension) {
@@ -502,8 +541,10 @@ public function compile()
             $this->compiler = new Compiler();
         }
 
-        foreach ($this->compiler->getPassConfig()->getPasses() as $pass) {
-            $this->addObjectResource($pass);
+        if ($this->trackResources) {
+            foreach ($this->compiler->getPassConfig()->getPasses() as $pass) {
+                $this->addObjectResource($pass);
+            }
         }
 
         $this->compiler->compile($this);

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

@@ -20,13 +20,6 @@
  */
 class IntegrationTest extends \PHPUnit_Framework_TestCase
 {
-    protected function setUp()
-    {
-        if (!class_exists('Symfony\Component\Config\Resource\FileResource')) {
-            $this->markTestSkipped('The "Config" component is not available');
-        }
-    }
-
     /**
      * This tests that the following dependencies are correctly processed:
      *
@@ -37,6 +30,7 @@ protected function setUp()
     public function testProcessRemovesAndInlinesRecursively()
     {
         $container = new ContainerBuilder();
+        $container->setResourceTracking(false);
 
         $a = $container
             ->register('a', '\stdClass')
@@ -66,6 +60,7 @@ public function testProcessRemovesAndInlinesRecursively()
     public function testProcessInlinesReferencesToAliases()
     {
         $container = new ContainerBuilder();
+        $container->setResourceTracking(false);
 
         $a = $container
             ->register('a', '\stdClass')
@@ -91,6 +86,7 @@ public function testProcessInlinesReferencesToAliases()
     public function testProcessInlinesWhenThereAreMultipleReferencesButFromTheSameDefinition()
     {
         $container = new ContainerBuilder();
+        $container->setResourceTracking(false);
 
         $container
             ->register('a', '\stdClass')

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

@@ -210,11 +210,8 @@ public function testAddAliases()
      */
     public function testAddGetCompilerPass()
     {
-        if (!class_exists('Symfony\Component\Config\Resource\FileResource')) {
-            $this->markTestSkipped('The "Config" component is not available');
-        }
-
         $builder = new ContainerBuilder();
+        $builder->setResourceTracking(false);
         $builderCompilerPasses = $builder->getCompiler()->getPassConfig()->getPasses();
         $builder->addCompilerPass($this->getMock('Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface'));
         $this->assertEquals(sizeof($builderCompilerPasses) + 1, sizeof($builder->getCompiler()->getPassConfig()->getPasses()));
@@ -335,30 +332,30 @@ public function testResolveServices()
      */
     public function testMerge()
     {
-        if (!class_exists('Symfony\Component\Config\Resource\FileResource')) {
-            $this->markTestSkipped('The "Config" component is not available');
-        }
-
         $container = new ContainerBuilder(new ParameterBag(array('bar' => 'foo')));
+        $container->setResourceTracking(false);
         $config = new ContainerBuilder(new ParameterBag(array('foo' => 'bar')));
         $container->merge($config);
         $this->assertEquals(array('bar' => 'foo', 'foo' => 'bar'), $container->getParameterBag()->all(), '->merge() merges current parameters with the loaded ones');
 
         $container = new ContainerBuilder(new ParameterBag(array('bar' => 'foo')));
+        $container->setResourceTracking(false);
         $config = new ContainerBuilder(new ParameterBag(array('foo' => '%bar%')));
         $container->merge($config);
 ////// FIXME
         $container->compile();
         $this->assertEquals(array('bar' => 'foo', 'foo' => 'foo'), $container->getParameterBag()->all(), '->merge() evaluates the values of the parameters towards already defined ones');
 
         $container = new ContainerBuilder(new ParameterBag(array('bar' => 'foo')));
+        $container->setResourceTracking(false);
         $config = new ContainerBuilder(new ParameterBag(array('foo' => '%bar%', 'baz' => '%foo%')));
         $container->merge($config);
 ////// FIXME
         $container->compile();
         $this->assertEquals(array('bar' => 'foo', 'foo' => 'foo', 'baz' => 'foo'), $container->getParameterBag()->all(), '->merge() evaluates the values of the parameters towards already defined ones');
 
         $container = new ContainerBuilder();
+        $container->setResourceTracking(false);
         $container->register('foo', 'FooClass');
         $container->register('bar', 'BarClass');
         $config = new ContainerBuilder();
@@ -372,6 +369,7 @@ public function testMerge()
         $this->assertEquals('foo', (string) $aliases['alias_for_foo']);
 
         $container = new ContainerBuilder();
+        $container->setResourceTracking(false);
         $container->register('foo', 'FooClass');
         $config->setDefinition('foo', new Definition('BazClass'));
         $container->merge($config);
@@ -384,11 +382,8 @@ public function testMerge()
      */
     public function testMergeLogicException()
     {
-        if (!class_exists('Symfony\Component\Config\Resource\FileResource')) {
-            $this->markTestSkipped('The "Config" component is not available');
-        }
-
         $container = new ContainerBuilder();
+        $container->setResourceTracking(false);
         $container->compile();
         $container->merge(new ContainerBuilder());
     }
@@ -456,11 +451,8 @@ public function testResources()
      */
     public function testExtension()
     {
-        if (!class_exists('Symfony\Component\Config\Resource\FileResource')) {
-            $this->markTestSkipped('The "Config" component is not available');
-        }
-
         $container = new ContainerBuilder();
+        $container->setResourceTracking(false);
 
         $container->registerExtension($extension = new \ProjectExtension());
         $this->assertTrue($container->getExtension('project') === $extension, '->registerExtension() registers an extension');
@@ -471,44 +463,35 @@ public function testExtension()
 
     public function testRegisteredButNotLoadedExtension()
     {
-        if (!class_exists('Symfony\Component\Config\Resource\FileResource')) {
-            $this->markTestSkipped('The "Config" component is not available');
-        }
-
         $extension = $this->getMock('Symfony\\Component\\DependencyInjection\\Extension\\ExtensionInterface');
         $extension->expects($this->once())->method('getAlias')->will($this->returnValue('project'));
         $extension->expects($this->never())->method('load');
 
         $container = new ContainerBuilder();
+        $container->setResourceTracking(false);
         $container->registerExtension($extension);
         $container->compile();
     }
 
     public function testRegisteredAndLoadedExtension()
     {
-        if (!class_exists('Symfony\Component\Config\Resource\FileResource')) {
-            $this->markTestSkipped('The "Config" component is not available');
-        }
-
         $extension = $this->getMock('Symfony\\Component\\DependencyInjection\\Extension\\ExtensionInterface');
         $extension->expects($this->exactly(2))->method('getAlias')->will($this->returnValue('project'));
         $extension->expects($this->once())->method('load')->with(array(array('foo' => 'bar')));
 
         $container = new ContainerBuilder();
+        $container->setResourceTracking(false);
         $container->registerExtension($extension);
         $container->loadFromExtension('project', array('foo' => 'bar'));
         $container->compile();
     }
 
     public function testPrivateServiceUser()
     {
-        if (!class_exists('Symfony\Component\Config\Resource\FileResource')) {
-            $this->markTestSkipped('The "Config" component is not available');
-        }
-
         $fooDefinition     = new Definition('BarClass');
         $fooUserDefinition = new Definition('BarUserClass', array(new Reference('bar')));
         $container         = new ContainerBuilder();
+        $container->setResourceTracking(false);
 
         $fooDefinition->setPublic(false);
 
@@ -526,11 +509,8 @@ public function testPrivateServiceUser()
      */
     public function testThrowsExceptionWhenSetServiceOnAFrozenContainer()
     {
-        if (!class_exists('Symfony\Component\Config\Resource\FileResource')) {
-            $this->markTestSkipped('The "Config" component is not available');
-        }
-
         $container = new ContainerBuilder();
+        $container->setResourceTracking(false);
         $container->compile();
         $container->set('a', new \stdClass());
     }
@@ -540,11 +520,8 @@ public function testThrowsExceptionWhenSetServiceOnAFrozenContainer()
      */
     public function testThrowsExceptionWhenSetDefinitionOnAFrozenContainer()
     {
-        if (!class_exists('Symfony\Component\Config\Resource\FileResource')) {
-            $this->markTestSkipped('The "Config" component is not available');
-        }
-
         $container = new ContainerBuilder();
+        $container->setResourceTracking(false);
         $container->compile();
         $container->setDefinition('a', new Definition());
     }

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

@@ -80,18 +80,24 @@ public function testCrossCheck($fixture, $type)
 
     public function crossCheckLoadersDumpers()
     {
-        return array(
+        $tests = array(
             array('services1.xml', 'xml'),
             array('services2.xml', 'xml'),
             array('services6.xml', 'xml'),
             array('services8.xml', 'xml'),
             array('services9.xml', 'xml'),
-
-            array('services1.yml', 'yaml'),
-            array('services2.yml', 'yaml'),
-            array('services6.yml', 'yaml'),
-            array('services8.yml', 'yaml'),
-            array('services9.yml', 'yaml'),
         );
+
+        if (class_exists('Symfony\Component\Yaml\Yaml')) {
+            $tests = array_merge($tests, array(
+                array('services1.yml', 'yaml'),
+                array('services2.yml', 'yaml'),
+                array('services6.yml', 'yaml'),
+                array('services8.yml', 'yaml'),
+                array('services9.yml', 'yaml'),
+            ));
+        }
+
+        return $tests;
     }
 }

src/Symfony/Component/DependencyInjection/Tests/Dumper/GraphvizDumperTest.php

@@ -18,13 +18,6 @@ class GraphvizDumperTest extends \PHPUnit_Framework_TestCase
 {
     protected static $fixturesPath;
 
-    protected function setUp()
-    {
-        if (!class_exists('Symfony\Component\Config\Loader\Loader')) {
-            $this->markTestSkipped('The "Config" component is not available');
-        }
-    }
-
     public static function setUpBeforeClass()
     {
         self::$fixturesPath = __DIR__.'/../Fixtures/';

src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php

@@ -21,13 +21,6 @@ class PhpDumperTest extends \PHPUnit_Framework_TestCase
 {
     protected static $fixturesPath;
 
-    protected function setUp()
-    {
-        if (!class_exists('Symfony\Component\Config\Loader\Loader')) {
-            $this->markTestSkipped('The "Config" component is not available');
-        }
-    }
-
     public static function setUpBeforeClass()
     {
         self::$fixturesPath = realpath(__DIR__.'/../Fixtures/');
@@ -47,6 +40,7 @@ public function testDump()
     public function testDumpFrozenContainerWithNoParameter()
     {
         $container = new ContainerBuilder();
+        $container->setResourceTracking(false);
         $container->register('foo', 'stdClass');
 
         $container->compile();
@@ -76,6 +70,7 @@ public function testDumpOptimizationString()
         ));
 
         $container = new ContainerBuilder();
+        $container->setResourceTracking(false);
         $container->setDefinition('test', $definition);
         $container->setParameter('empty_value', '');
         $container->setParameter('some_string', '-');

src/Symfony/Component/DependencyInjection/Tests/Dumper/XmlDumperTest.php

@@ -18,13 +18,6 @@ class XmlDumperTest extends \PHPUnit_Framework_TestCase
 {
     protected static $fixturesPath;
 
-    protected function setUp()
-    {
-        if (!class_exists('Symfony\Component\Config\Loader\Loader')) {
-            $this->markTestSkipped('The "Config" component is not available');
-        }
-    }
-
     public static function setUpBeforeClass()
     {
         self::$fixturesPath = realpath(__DIR__.'/../Fixtures/');

src/Symfony/Component/DependencyInjection/Tests/Dumper/YamlDumperTest.php

@@ -20,8 +20,8 @@ class YamlDumperTest extends \PHPUnit_Framework_TestCase
 
     protected function setUp()
     {
-        if (!class_exists('Symfony\Component\Config\Loader\Loader')) {
-            $this->markTestSkipped('The "Config" component is not available');
+        if (!class_exists('Symfony\Component\Yaml\Yaml')) {
+            $this->markTestSkipped('The "Yaml" component is not available');
         }
     }