5.6

VariadicController.php

@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of the Symfony-Util package.
+ *
+ * (c) Jean-Bernard Addor
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SymfonyUtil\Controller;
+
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Templating\EngineInterface;
+
+class VariadicController
+{
+    protected $templating;
+    protected $template;
+
+    public function __construct(EngineInterface $templating, $template = 'index.html.twig')
+    {
+        $this->templating = $templating;
+        $this->template = $template;
+    }
+
+    public function __invoke(...$arguments) // PHP 5.6+
+    {
+        // Variadic $arguments apparently not supported when empty by Symfony 3.3.6 ArgumentResolver
+        // and viewed as a regular array by knplabs/rad-resource-resolver v2.1
+
+        return new Response($this->templating->render($this->template, $arguments));
+    }
+}

composer.json

@@ -13,6 +13,7 @@
         "symfony/templating": "^2.0 || ^3.0 || ^4.0"
     },
     "require-dev": {
+        "php": "^5.6",
         "symfony/twig-bridge": "^2.0 || ^3.0 || ^4.0",
         "symfony/var-dumper": "^2.0 || ^3.0 || ^4.0",
         "twig/twig": "^1.0 || ^2.0"

tests/VariadicControllerTest.php

@@ -0,0 +1,68 @@
+<?php
+
+/*
+ * This file is part of the Symfony-Util package.
+ *
+ * (c) Jean-Bernard Addor
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Bridge\Twig\TwigEngine;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Templating\TemplateNameParser;
+use SymfonyUtil\Controller\VariadicController;
+
+/**
+ * @covers \SymfonyUtil\Controller\VariadicController
+ * @requires PHP 5.6.0
+ */
+final class VariadicControllerTest extends TestCase
+{
+    public function testCanBeCreated()
+    {
+        $this->assertInstanceOf(
+            // VariadicController::class, // 5.4 < php (code is checked even if not executed!)
+            'SymfonyUtil\Controller\VariadicController',
+            new VariadicController(new TwigEngine(
+                new Twig_Environment(new Twig_Loader_Array(['index.html.twig' => 'Hello World!'])),
+                new TemplateNameParser()
+            ))
+        );
+    }
+
+    public function testEmptyReturnsResponse()
+    {
+        $this->assertInstanceOf(
+            // Response::class, // 5.4 < php (code is checked even if not executed!)
+            'Symfony\Component\HttpFoundation\Response',
+            (new VariadicController(new TwigEngine(
+                new Twig_Environment(new Twig_Loader_Array(['index.html.twig' => 'Hello World!'])),
+                new TemplateNameParser()
+            )))->__invoke()
+        );
+    }
+
+    public function testArrayReturnsResponse()
+    {
+        $this->assertInstanceOf(
+            // Response::class, // 5.4 < php (code is checked even if not executed!)
+            'Symfony\Component\HttpFoundation\Response',
+            (new VariadicController(new TwigEngine(
+                new Twig_Environment(new Twig_Loader_Array([
+                    'index.html.twig' => '<ul>{% for item in 0 %}<li>{{ item }}</li>{% endfor %}</ul>',
+                ])),
+                new TemplateNameParser()
+            )))->__invoke([
+                'One',
+                'Two',
+                'Three',
+            ])
+        );
+    }
+}
+
+// http://api.symfony.com/3.3/Symfony/Bridge/Twig/TwigEngine.html
+// http://api.symfony.com/3.3/Symfony/Bundle/TwigBundle/TwigEngine.html