Add PHPStan

.github/workflows/on_pull_request.yml

@@ -35,6 +35,8 @@ jobs:
         run: composer install --no-progress --no-suggest --prefer-dist --optimize-autoloader
       - name: Run PHP CodeSniffer
         run: composer phpcs
+      - name: Run PHPStan
+        run: composer phpstan
       - name: Install Composer dependencies (without dev)
         run: composer install --no-progress --no-dev --no-suggest --prefer-dist --optimize-autoloader
 

composer.json

@@ -28,10 +28,12 @@
         "interfaces"
     ],
     "require-dev": {
-        "squizlabs/php_codesniffer": "^3.9"
+        "squizlabs/php_codesniffer": "^3.9",
+        "phpstan/phpstan": "^2.0"
     },
     "scripts": {
-        "phpcs": "phpcs --standard=phpcs.xml.dist src/",
-        "phpcbf": "phpcbf --standard=phpcs.xml.dist src/"
+        "phpcs": "phpcs",
+        "phpcbf": "phpcbf",
+        "phpstan": "phpstan"
     }
 }

phpstan.neon.dist

@@ -0,0 +1,9 @@
+parameters:
+    level: max
+    paths:
+        - src
+
+    # Ignore vendor directory
+    excludePaths:
+        - vendor
+

src/SetupStepInterface.php

@@ -22,11 +22,11 @@ public function __construct(?OutputDecorator $output);
      * Execute setup step
      *
      * @param InstallableExtensionInterface $extension Object that will be installed/updated or removed
-     * @param array $params Extra params
+     * @param array<string, mixed> $params Extra params
      *
      * @return bool
      */
-    public function execute(InstallableExtensionInterface $extension, ...$params): bool;
+    public function execute(InstallableExtensionInterface $extension, array $params): bool;
 
     /**
      * Get priority to use this step