Add missing type declarations and phpdoc

This implies bumping the PHP version to 8.2, otherwise it does not
understand that a signature using mixed as a parameter type declaration
is compatible with a signature using no paramater type declaration for
the same argument.

.github/workflows/continuous-integration.yml

@@ -23,7 +23,6 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "8.1"
           - "8.2"
           - "8.3"
         dependencies:
@@ -32,7 +31,7 @@ jobs:
           - "stable"
         include:
           - dependencies: "lowest"
-            php-version: "8.1"
+            php-version: "8.2"
           - dependencies: "highest"
             stability: "dev"
             php-version: "8.3"

UPGRADE.md

@@ -1,6 +1,11 @@
 UPGRADE to 4.0
 ==============
 
+## Type declarations
+
+Type declarations have been added everywhere. Types extending or implementing
+types from this bundle need to be updated to match the new signatures.
+
 ## Mandatory ManagerRegistry argument
 
 It is now mandatory to pass a `ManagerRegistry` instance to the constructor of
@@ -34,7 +39,7 @@ services:
     and so no longer have a ``$this->container`` property. You *can* manually
     implement this interface. Or, a better idea is to update your fixtures
     to use dependency injection:
-    
+
 ```diff
 class MyFixture extends Fixture
 {
@@ -56,7 +61,7 @@ class MyFixture extends Fixture
 * The base ``Fixture`` class no longer implements ``DependentFixtureInterface``.
     If you want to have a ``getDependencies()`` method, be sure to implement
     this interface explicitly:
-    
+
 ```diff
 + use Doctrine\Common\DataFixtures\DependentFixtureInterface;
 

composer.json

@@ -23,7 +23,7 @@
     ],
     "homepage": "https://www.doctrine-project.org",
     "require": {
-        "php": "^8.1",
+        "php": "^8.2",
         "doctrine/data-fixtures": "^2.0",
         "doctrine/doctrine-bundle": "^2.2",
         "doctrine/orm": "^2.14.0 || ^3.0",

phpstan.neon.dist

@@ -4,9 +4,3 @@ parameters:
     paths:
         - src
         - tests
-    excludePaths:
-        # Contains an issue that cannot be ignored
-        - tests/IntegrationTest.php
-
-includes:
-    - phpstan-baseline.neon

src/Command/LoadDataFixturesDoctrineCommand.php

@@ -13,6 +13,7 @@
 use Doctrine\ORM\EntityManagerInterface;
 use Doctrine\Persistence\ManagerRegistry;
 use Psr\Log\AbstractLogger;
+use Stringable;
 use Symfony\Component\Console\Input\InputInterface;
 use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Output\OutputInterface;
@@ -123,7 +124,7 @@ public function __construct(private SymfonyStyle $ui)
             }
 
             /** {@inheritDoc} */
-            public function log($level, $message, array $context = []): void
+            public function log(mixed $level, string|Stringable $message, array $context = []): void
             {
                 $this->ui->text(sprintf('  <comment>></comment> <info>%s</info>', $message));
             }

src/Loader/SymfonyFixturesLoader.php

@@ -66,7 +66,7 @@ public function addFixture(FixtureInterface $fixture): void
      * Overridden to not allow new fixture classes to be instantiated.
      * {@inheritDoc}
      */
-    protected function createFixture($class): FixtureInterface
+    protected function createFixture(string $class): FixtureInterface
     {
         /*
          * We don't actually need to create the fixture. We just

tests/Fixtures/FooBundle/DataFixtures/RequiredConstructorArgsFixtures.php

@@ -9,6 +9,7 @@
 
 class RequiredConstructorArgsFixtures implements ORMFixtureInterface
 {
+    /** @phpstan-ignore constructor.unusedParameter */
     public function __construct(string $fooRequiredArg)
     {
     }

tests/IntegrationTestKernel.php

@@ -11,6 +11,7 @@
 use Symfony\Component\Config\Loader\LoaderInterface;
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\HttpKernel\Bundle\BundleInterface;
 use Symfony\Component\HttpKernel\Kernel;
 
 use function rand;
@@ -35,6 +36,8 @@ protected function getContainerClass(): string
 
     /**
      * {@inheritDoc}
+     *
+     * @return array<mixed, BundleInterface>
      */
     public function registerBundles(): array
     {