add Rector

Author: EmTeedee

.github/workflows/test.yml

@@ -45,3 +45,35 @@ jobs:
 
       - name: Tests
         run: composer test
+
+  rector:
+    name: Rector
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        php:
+          - 8.4
+      fail-fast: false
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+
+      - name: Cache PHP dependencies
+        uses: actions/cache@v4
+        with:
+          path: vendor
+          key: ${{ runner.os }}-php-${{ matrix.php }}-composer-${{ hashFiles('**/composer.json') }}
+          restore-keys: ${{ runner.os }}-php-${{ matrix.php }}-composer-
+
+      - name: Install dependencies
+        run: composer install --prefer-dist --no-progress --no-suggest
+
+      - name: Tests
+        run: vendor/bin/rector process --dry-run

composer.json

@@ -26,7 +26,8 @@
         "phpunit/phpunit": "^8.0",
         "squizlabs/php_codesniffer": "^3.0",
         "oscarotero/php-cs-fixer-config": "^1.0",
-        "friendsofphp/php-cs-fixer": "^2.15"
+        "friendsofphp/php-cs-fixer": "^2.15",
+        "rector/rector": "^1|^2"
     },
     "autoload": {
         "psr-4": {
@@ -43,6 +44,7 @@
             "phpunit",
             "phpcs"
         ],
-        "cs-fix": "php-cs-fixer fix"
+        "cs-fix": "php-cs-fixer fix",
+        "rector": "rector process"
     }
 }

rector.php

@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\Set\ValueObject\SetList;
+
+return RectorConfig::configure()
+    ->withPaths([
+        __DIR__ . '/src',
+        __DIR__ . '/tests',
+    ])
+    ->withPhpSets()
+    ->withPreparedSets(typeDeclarations: true)
+    ->withDeadCodeLevel(2)
+    ->withCodeQualityLevel(10)
+    ->withCodingStyleLevel(0)
+;