Merge pull request #65 from symplify/fix/issue-58-error-with-empty-routes-file

fix: emit empty closure for empty YAML files (fixes #58)

Author: TomasVotruba

src/Converter/YamlToPhpConverter.php

@@ -32,11 +32,8 @@ public function convert(string $yaml, string $filePath): string
     {
         /** @var mixed[]|null $yamlArray */
         $yamlArray = $this->parser->parse($yaml, Yaml::PARSE_CUSTOM_TAGS | Yaml::PARSE_CONSTANT);
-        if ($yamlArray === null) {
-            return '';
-        }
 
-        return $this->convertYamlArray($yamlArray, $filePath);
+        return $this->convertYamlArray($yamlArray ?? [], $filePath);
     }
 
     /**

tests/Converter/ConfigFormatConverter/YamlToPhp/Fixture/routing/empty_routes.yaml

@@ -0,0 +1,12 @@
+#index:
+#    path: /
+#    controller: App\Controller\DefaultController::index
+-----
+<?php
+
+declare(strict_types=1);
+
+use Symfony\Component\Routing\Loader\Configurator\RoutingConfigurator;
+
+return static function (RoutingConfigurator $routingConfigurator): void {
+};