Leverage arrow function syntax for closure

Author: tigitz

Authorization/ExpressionLanguageProvider.php

@@ -24,29 +24,13 @@ class ExpressionLanguageProvider implements ExpressionFunctionProviderInterface
     public function getFunctions(): array
     {
         return [
-            new ExpressionFunction('is_authenticated', function () {
-                return '$auth_checker->isGranted("IS_AUTHENTICATED")';
-            }, function (array $variables) {
-                return $variables['auth_checker']->isGranted('IS_AUTHENTICATED');
-            }),
+            new ExpressionFunction('is_authenticated', fn () => '$auth_checker->isGranted("IS_AUTHENTICATED")', fn (array $variables) => $variables['auth_checker']->isGranted('IS_AUTHENTICATED')),
 
-            new ExpressionFunction('is_fully_authenticated', function () {
-                return '$token && $auth_checker->isGranted("IS_AUTHENTICATED_FULLY")';
-            }, function (array $variables) {
-                return $variables['token'] && $variables['auth_checker']->isGranted('IS_AUTHENTICATED_FULLY');
-            }),
+            new ExpressionFunction('is_fully_authenticated', fn () => '$token && $auth_checker->isGranted("IS_AUTHENTICATED_FULLY")', fn (array $variables) => $variables['token'] && $variables['auth_checker']->isGranted('IS_AUTHENTICATED_FULLY')),
 
-            new ExpressionFunction('is_granted', function ($attributes, $object = 'null') {
-                return sprintf('$auth_checker->isGranted(%s, %s)', $attributes, $object);
-            }, function (array $variables, $attributes, $object = null) {
-                return $variables['auth_checker']->isGranted($attributes, $object);
-            }),
+            new ExpressionFunction('is_granted', fn ($attributes, $object = 'null') => sprintf('$auth_checker->isGranted(%s, %s)', $attributes, $object), fn (array $variables, $attributes, $object = null) => $variables['auth_checker']->isGranted($attributes, $object)),
 
-            new ExpressionFunction('is_remember_me', function () {
-                return '$token && $auth_checker->isGranted("IS_REMEMBERED")';
-            }, function (array $variables) {
-                return $variables['token'] && $variables['auth_checker']->isGranted('IS_REMEMBERED');
-            }),
+            new ExpressionFunction('is_remember_me', fn () => '$token && $auth_checker->isGranted("IS_REMEMBERED")', fn (array $variables) => $variables['token'] && $variables['auth_checker']->isGranted('IS_REMEMBERED')),
         ];
     }
 }

Tests/Authentication/Token/Storage/UsageTrackingTokenStorageTest.php

@@ -68,9 +68,7 @@ public function testGetSetToken()
 
     public function testWithoutMainRequest()
     {
-        $locator = new class(['request_stack' => function () {
-            return new RequestStack();
-        }]) implements ContainerInterface {
+        $locator = new class(['request_stack' => fn () => new RequestStack()]) implements ContainerInterface {
             use ServiceLocatorTrait;
         };
         $tokenStorage = new TokenStorage();

Tests/Resources/TranslationFilesTest.php

@@ -45,7 +45,7 @@ public function testTranslationFileIsValidWithoutEntityLoader($filePath)
     public function provideTranslationFiles()
     {
         return array_map(
-            function ($filePath) { return (array) $filePath; },
+            fn ($filePath) => (array) $filePath,
             glob(\dirname(__DIR__, 2).'/Resources/translations/*.xlf')
         );
     }