removed obsolete code

src/Silex/ControllerResolver.php

-<?php
-
-/*
- * This file is part of the Silex framework.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Silex;
-
-use Psr\Log\LoggerInterface;
-use Symfony\Component\HttpKernel\Controller\ControllerResolver as BaseControllerResolver;
-use Symfony\Component\HttpFoundation\Request;
-
-/**
- * Adds Application as a valid argument for controllers.
- *
- * @author Fabien Potencier <fabien@symfony.com>
- *
- * @deprecated This class can be dropped once Symfony 3.0 is not supported anymore.
- */
-class ControllerResolver extends BaseControllerResolver
-{
-    protected $app;
-
-    /**
-     * Constructor.
-     *
-     * @param Application     $app    An Application instance
-     * @param LoggerInterface $logger A LoggerInterface instance
-     */
-    public function __construct(Application $app, LoggerInterface $logger = null)
-    {
-        $this->app = $app;
-
-        parent::__construct($logger);
-    }
-
-    protected function doGetArguments(Request $request, $controller, array $parameters)
-    {
-        foreach ($parameters as $param) {
-            if ($param->getClass() && $param->getClass()->isInstance($this->app)) {
-                $request->attributes->set($param->getName(), $this->app);
-
-                break;
-            }
-        }
-
-        return parent::doGetArguments($request, $controller, $parameters);
-    }
-}

src/Silex/Provider/HttpKernelServiceProvider.php

@@ -7,23 +7,17 @@ use Pimple\ServiceProviderInterface;
 use Silex\Api\EventListenerProviderInterface;
 use Silex\AppArgumentValueResolver;
 use Silex\CallbackResolver;
-use Silex\ControllerResolver;
 use Silex\EventListener\ConverterListener;
 use Silex\EventListener\MiddlewareListener;
 use Silex\EventListener\StringToResponseListener;
 use Symfony\Component\EventDispatcher\EventDispatcher;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 use Symfony\Component\HttpKernel\Controller\ArgumentResolver;
-use Symfony\Component\HttpKernel\Controller\ArgumentResolver\RequestAttributeValueResolver;
-use Symfony\Component\HttpKernel\Controller\ArgumentResolver\RequestValueResolver;
-use Symfony\Component\HttpKernel\Controller\ArgumentResolver\DefaultValueResolver;
-use Symfony\Component\HttpKernel\Controller\ArgumentResolver\VariadicValueResolver;
-use Symfony\Component\HttpKernel\Controller\ControllerResolver as SfControllerResolver;
+use Symfony\Component\HttpKernel\Controller\ControllerResolver;
 use Symfony\Component\HttpFoundation\RequestStack;
 use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadataFactory;
 use Symfony\Component\HttpKernel\EventListener\ResponseListener;
 use Symfony\Component\HttpKernel\HttpKernel;
-use Symfony\Component\HttpKernel\Kernel;
 use Symfony\Component\WebLink\EventListener\AddLinkHeaderListener;
 use Symfony\Component\WebLink\HttpHeaderSerializer;
 
@@ -35,36 +29,18 @@ class HttpKernelServiceProvider implements ServiceProviderInterface, EventListen
     public function register(Container $app)
     {
         $app['resolver'] = function ($app) {
-            if (Kernel::VERSION_ID >= 30100) {
-                return new SfControllerResolver($app['logger']);
-            }
-
-            return new ControllerResolver($app, $app['logger']);
+            return new ControllerResolver($app['logger']);
         };
 
-        if (Kernel::VERSION_ID >= 30100) {
         $app['argument_metadata_factory'] = function ($app) {
             return new ArgumentMetadataFactory();
         };
         $app['argument_value_resolvers'] = function ($app) {
-                if (Kernel::VERSION_ID < 30200) {
-                    return [
-                        new AppArgumentValueResolver($app),
-                        new RequestAttributeValueResolver(),
-                        new RequestValueResolver(),
-                        new DefaultValueResolver(),
-                        new VariadicValueResolver(),
-                    ];
-                }
-
             return array_merge([new AppArgumentValueResolver($app)], ArgumentResolver::getDefaultArgumentValueResolvers());
         };
-        }
 
         $app['argument_resolver'] = function ($app) {
-            if (Kernel::VERSION_ID >= 30100) {
             return new ArgumentResolver($app['argument_metadata_factory'], $app['argument_value_resolvers']);
-            }
         };
 
         $app['kernel'] = function ($app) {

src/Silex/Provider/TranslationServiceProvider.php

@@ -13,10 +13,8 @@ namespace Silex\Provider;
 
 use Pimple\Container;
 use Pimple\ServiceProviderInterface;
-use Symfony\Component\HttpKernel\Kernel;
 use Symfony\Component\Translation\Translator;
 use Symfony\Component\Translation\Formatter\MessageFormatter;
-use Symfony\Component\Translation\MessageSelector;
 use Symfony\Component\Translation\Loader\ArrayLoader;
 use Symfony\Component\Translation\Loader\XliffFileLoader;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
@@ -79,10 +77,6 @@ class TranslationServiceProvider implements ServiceProviderInterface, EventListe
         }
 
         $app['translator.message_selector'] = function () {
-            if (Kernel::VERSION_ID < 30400) {
-                return new MessageSelector();
-            }
-
             return new MessageFormatter();
         };
 

src/Silex/Provider/TwigServiceProvider.php

@@ -25,11 +25,8 @@ use Symfony\Bridge\Twig\Extension\HttpFoundationExtension;
 use Symfony\Bridge\Twig\Extension\HttpKernelExtension;
 use Symfony\Bridge\Twig\Extension\WebLinkExtension;
 use Symfony\Bridge\Twig\Form\TwigRendererEngine;
-use Symfony\Bridge\Twig\Form\TwigRenderer;
 use Symfony\Bridge\Twig\Extension\HttpKernelRuntime;
 use Symfony\Component\Form\FormRenderer;
-use Symfony\Component\HttpKernel\Kernel;
-use Symfony\Component\WebLink\HttpHeaderSerializer;
 
 /**
  * Twig integration for Silex.
@@ -128,10 +125,6 @@ class TwigServiceProvider implements ServiceProviderInterface
                     $app['twig.form.renderer'] = function ($app) {
                         $csrfTokenManager = isset($app['csrf.token_manager']) ? $app['csrf.token_manager'] : null;
 
-                        if (Kernel::VERSION_ID < 30400) {
-                            return new TwigRenderer($app['twig.form.engine'], $csrfTokenManager);
-                        }
-
                         return new FormRenderer($app['twig.form.engine'], $csrfTokenManager);
                     };
 
@@ -147,14 +140,9 @@ class TwigServiceProvider implements ServiceProviderInterface
                     $twig->addExtension(new DumpExtension($app['var_dumper.cloner']));
                 }
 
-                if (class_exists(HttpKernelRuntime::class)) {
                 $twig->addRuntimeLoader($app['twig.runtime_loader']);
-                }
-
-                if (class_exists(HttpHeaderSerializer::class) && class_exists(WebLinkExtension::class)) {
                 $twig->addExtension(new WebLinkExtension($app['request_stack']));
             }
-            }
 
             return $twig;
         };
@@ -192,19 +180,10 @@ class TwigServiceProvider implements ServiceProviderInterface
         };
 
         $app['twig.runtimes'] = function ($app) {
-            $runtimes = [];
-
-            if (class_exists(HttpKernelRuntime::class)) {
-                $runtimes[HttpKernelRuntime::class] = 'twig.runtime.httpkernel';
-            }
-
-            if (Kernel::VERSION_ID < 30400) {
-                $runtimes[TwigRenderer::class] = 'twig.form.renderer';
-            } else {
-                $runtimes[FormRenderer::class] = 'twig.form.renderer';
-            }
-
-            return $runtimes;
+            return [
+                HttpKernelRuntime::class => 'twig.runtime.httpkernel',
+                FormRenderer::class => 'twig.form.renderer',
+            ];
         };
 
         $app['twig.runtime_loader'] = function ($app) {

tests/Silex/Tests/ControllerResolverTest.php

-<?php
-
-/*
- * This file is part of the Silex framework.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * This source file is subject to the MIT license that is bundled
- * with this source code in the file LICENSE.
- */
-
-namespace Silex\Tests;
-
-use PHPUnit\Framework\TestCase;
-use Silex\ControllerResolver;
-use Silex\Application;
-use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpKernel\Kernel;
-
-/**
- * ControllerResolver test cases.
- *
- * @author Fabien Potencier <fabien@symfony.com>
- */
-class ControllerResolverTest extends TestCase
-{
-    /**
-     * @group legacy
-     */
-    public function testGetArguments()
-    {
-        if (Kernel::VERSION_ID >= 30100) {
-            self::markTestSkipped('HttpKernel < 3.1.0 is required');
-        }
-
-        $app = new Application();
-        $resolver = new ControllerResolver($app);
-
-        $controller = function (Application $app) {};
-
-        $args = $resolver->getArguments(Request::create('/'), $controller);
-        $this->assertSame($app, $args[0]);
-    }
-}

tests/Silex/Tests/Provider/MonologServiceProviderTest.php

@@ -20,7 +20,6 @@ use Silex\Provider\MonologServiceProvider;
 use Symfony\Component\HttpFoundation\RedirectResponse;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
-use Symfony\Component\HttpKernel\Kernel;
 
 /**
  * MonologProvider test cases.
@@ -59,13 +58,9 @@ class MonologServiceProviderTest extends TestCase
         $this->assertTrue($app['monolog.handler']->hasDebug('< 200'));
 
         $records = $app['monolog.handler']->getRecords();
-        if (Kernel::VERSION_ID < 30100) {
-            $this->assertContains('Matched route "GET_foo"', $records[0]['message']);
-        } else {
         $this->assertContains('Matched route "{route}".', $records[0]['message']);
         $this->assertSame('GET_foo', $records[0]['context']['route']);
     }
-    }
 
     public function testManualLogging()
     {

tests/Silex/Tests/Provider/SecurityServiceProviderTest/TokenAuthenticator.php

@@ -13,7 +13,6 @@ namespace Silex\Tests\Provider\SecurityServiceProviderTest;
 
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\JsonResponse;
-use Symfony\Component\HttpKernel\Kernel;
 use Symfony\Component\Security\Core\User\UserInterface;
 use Symfony\Component\Security\Core\User\UserProviderInterface;
 use Symfony\Component\Security\Guard\AbstractGuardAuthenticator;
@@ -28,7 +27,7 @@ class TokenAuthenticator extends AbstractGuardAuthenticator
     public function getCredentials(Request $request)
     {
         if (!$token = $request->headers->get('X-AUTH-TOKEN')) {
-            return Kernel::VERSION_ID < 30400 ? null : false;
+            return false;
         }
 
         list($username, $secret) = explode(':', $token);

tests/Silex/Tests/Provider/TwigServiceProviderTest.php

@@ -20,7 +20,6 @@ use Silex\Provider\TwigServiceProvider;
 use Silex\Provider\AssetServiceProvider;
 use Symfony\Bridge\Twig\Extension\WebLinkExtension;
 use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpKernel\Kernel;
 use Symfony\Component\WebLink\HttpHeaderSerializer;
 
 /**
@@ -112,12 +111,8 @@ class TwigServiceProviderTest extends TestCase
 
         $this->assertInstanceOf('Twig_Environment', $app['twig']);
         $this->assertInstanceOf('Symfony\Bridge\Twig\Form\TwigRendererEngine', $app['twig.form.engine']);
-        if (Kernel::VERSION_ID < 30400) {
-            $this->assertInstanceOf('Symfony\Bridge\Twig\Form\TwigRenderer', $app['twig.form.renderer']);
-        } else {
         $this->assertInstanceOf('Symfony\Component\Form\FormRenderer', $app['twig.form.renderer']);
     }
-    }
 
     public function testFormWithoutCsrf()
     {

tests/Silex/Tests/Provider/ValidatorServiceProviderTest.php

@@ -20,7 +20,6 @@ use Symfony\Component\Translation\Exception\NotFoundResourceException;
 use Symfony\Component\Validator\Constraints as Assert;
 use Silex\Tests\Provider\ValidatorServiceProviderTest\Constraint\Custom;
 use Silex\Tests\Provider\ValidatorServiceProviderTest\Constraint\CustomValidator;
-use Symfony\Component\Validator\ValidatorInterface as LegacyValidatorInterface;
 use Symfony\Component\Validator\Validator\ValidatorInterface;
 
 /**
@@ -86,7 +85,7 @@ class ValidatorServiceProviderTest extends TestCase
      */
     public function testValidatorServiceIsAValidator($app)
     {
-        $this->assertTrue($app['validator'] instanceof ValidatorInterface || $app['validator'] instanceof LegacyValidatorInterface);
+        $this->assertTrue($app['validator'] instanceof ValidatorInterface);
     }
 
     /**

tests/Silex/Tests/ServiceControllerResolverTest.php

@@ -15,7 +15,6 @@ use PHPUnit\Framework\TestCase;
 use Silex\ServiceControllerResolver;
 use Silex\Application;
 use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpKernel\Kernel;
 
 /**
  * Unit tests for ServiceControllerResolver, see ServiceControllerResolverRouterTest for some
@@ -77,22 +76,4 @@ class ServiceControllerResolverTest extends Testcase
 
         $this->assertEquals(123, $this->resolver->getController($req));
     }
-
-    /**
-     * @group legacy
-     */
-    public function testShouldDelegateGetArguments()
-    {
-        if (Kernel::VERSION_ID >= 40000) {
-            self::markTestSkipped('HttpKernel < 4.0 is required');
-        }
-
-        $req = Request::create('/');
-        $this->mockResolver->expects($this->once())
-            ->method('getArguments')
-            ->with($req)
-            ->will($this->returnValue(123));
-
-        $this->assertEquals(123, $this->resolver->getArguments($req, function () {}));
-    }
 }