[TOOLS][PHPStan] Raise PHPStan level to 3 and fix new errors

phpstan.neon

@@ -1,5 +1,5 @@
 parameters:
-    level: 2
+    level: 3
     bootstrapFiles:
         - config/bootstrap.php
     earlyTerminatingMethodCalls:
@@ -10,6 +10,10 @@ parameters:
             message: '/Access to an undefined property App\\Util\\Bitmap::\$\w+/'
             paths:
                 - *
+        # -
+        #     message: '/has no return typehint specified/'
+        #     paths:
+        #         - tests/*
 
 services:
     -

plugins/Embed/Entity/AttachmentEmbed.php

@@ -182,7 +182,7 @@ class AttachmentEmbed extends Entity
     /**
      * Generate the Embed thumbnail HTML attributes
      *
-     * @return string[] ['class' => "string", 'has_attachment' => "bool", 'height' => "int|null", 'width' => "int|null"]
+     * @return mixed[] ['class' => string, 'has_attachment' => bool, 'height' => int|null, 'width' => int|null]
      */
     public function getImageHTMLAttributes(): array
     {

src/Core/Form.php

@@ -36,6 +36,7 @@ use App\Util\Formatting;
 use Symfony\Component\Form\Extension\Core\Type\SubmitType;
 use Symfony\Component\Form\Form as SymfForm;
 use Symfony\Component\Form\FormFactoryInterface;
+use Symfony\Component\Form\FormInterface as SymfFormInterface;
 use Symfony\Component\HttpFoundation\Request;
 
 /**
@@ -86,7 +87,7 @@ abstract class Form
                                   ?object $target = null,
                                   array $extra_data = [],
                                   string $type = 'Symfony\Component\Form\Extension\Core\Type\FormType',
-                                  array $form_options = []): SymfForm
+                                  array $form_options = []): SymfFormInterface
     {
         $name = $form[array_key_last($form)][0];
         $fb   = self::$form_factory->createNamedBuilder($name, $type, data: null, options: array_merge($form_options, ['translation_domain' => false]));

src/Core/Security.php

@@ -30,6 +30,7 @@
 
 namespace App\Core;
 
+use App\Entity\LocalUser;
 use HtmlSanitizer\SanitizerInterface;
 use Symfony\Component\Security\Core\Security as SymfonySecurity;
 
@@ -40,6 +41,8 @@ use Symfony\Component\Security\Core\Security as SymfonySecurity;
  * @codeCoverageIgnore
  * @mixin SymfonySecurity
  * @mixin SanitizerInterface
+ *
+ * @method static LocalUser getUser()
  */
 abstract class Security
 {

src/Util/Common.php

@@ -104,6 +104,10 @@ abstract class Common
 
     public static function user(): ?LocalUser
     {
+        // This returns the user stored in the session. We only use
+        // LocalUser, but this is more generic and returns
+        // UserInterface, so we need a type cast
+        /** @var LocalUser */
         return Security::getUser();
     }
 

tests/Twig/ExtensionTest.php

@@ -85,6 +85,7 @@ class ExtensionTest extends GNUsocialTestCase
     public function testIsCurrentRouteActive()
     {
         $req = $this->createMock(Request::class);
+        // @phpstan-ignore-next-line
         $req->attributes = new class {
             public function get(string $arg)
             {