style: add rector

.github/workflows/pipeline.yml

@@ -54,5 +54,8 @@ jobs:
       - name: Code Style PHP
         run: vendor/bin/php-cs-fixer fix --dry-run
 
+      - name: Rector
+        run: vendor/bin/rector --dry-run
+
       - name: PHPStan
         run: vendor/bin/phpstan analyse

composer.json

@@ -20,7 +20,8 @@
     "require-dev": {
         "php-cs-fixer/shim": "^3.69",
         "phpstan/phpstan": "^2.1",
-        "phpunit/phpunit": "^11.5"
+        "phpunit/phpunit": "^11.5",
+        "rector/rector": "^2.0"
     },
     "config": {
         "sort-packages": true

rector.php

@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\Config\RectorConfig;
+use Rector\Php74\Rector\Closure\ClosureToArrowFunctionRector;
+use Rector\PHPUnit\CodeQuality\Rector\Class_\PreferPHPUnitSelfCallRector;
+use Rector\PHPUnit\CodeQuality\Rector\Class_\PreferPHPUnitThisCallRector;
+use Rector\PHPUnit\CodeQuality\Rector\MethodCall\AssertCountWithZeroToAssertEmptyRector;
+use Rector\PHPUnit\Set\PHPUnitSetList;
+
+return RectorConfig::configure()
+    ->withPaths([
+        __DIR__.'/src',
+        __DIR__.'/tests',
+    ])
+    ->withPhpSets(php82: true)
+    ->withSets([
+        PHPUnitSetList::PHPUNIT_110,
+        PHPUnitSetList::ANNOTATIONS_TO_ATTRIBUTES,
+        PHPUnitSetList::PHPUNIT_CODE_QUALITY,
+    ])
+    ->withRules([
+        PreferPHPUnitSelfCallRector::class,
+    ])
+    ->withImportNames(importShortClasses: false)
+    ->withSkip([
+        AssertCountWithZeroToAssertEmptyRector::class,
+        ClosureToArrowFunctionRector::class,
+        PreferPHPUnitThisCallRector::class,
+    ])
+    ->withTypeCoverageLevel(0);

src/DependencyInjection/LlmChainExtension.php

@@ -219,7 +219,7 @@ private function processChainConfig(string $name, array $config, ContainerBuilde
         // MODEL
         ['name' => $modelName, 'version' => $version, 'options' => $options] = $config['model'];
 
-        $llmClass = match (strtolower($modelName)) {
+        $llmClass = match (strtolower((string) $modelName)) {
             'gpt' => GPT::class,
             'claude' => Claude::class,
             'llama' => Llama::class,
@@ -404,7 +404,7 @@ private function processEmbedderConfig(int|string $name, array $config, Containe
     {
         ['name' => $modelName, 'version' => $version, 'options' => $options] = $config['model'];
 
-        $modelClass = match (strtolower($modelName)) {
+        $modelClass = match (strtolower((string) $modelName)) {
             'embeddings' => Embeddings::class,
             'voyage' => Voyage::class,
             default => throw new \InvalidArgumentException(sprintf('Model "%s" is not supported.', $modelName)),

src/Profiler/DataCollector.php

@@ -20,12 +20,12 @@ final class DataCollector extends AbstractDataCollector
     /**
      * @var TraceablePlatform[]
      */
-    private array $platforms;
+    private readonly array $platforms;
 
     /**
      * @var TraceableToolBox[]
      */
-    private array $toolBoxes;
+    private readonly array $toolBoxes;
 
     /**
      * @param TraceablePlatform[] $platforms

src/Profiler/TraceableToolBox.php

@@ -21,7 +21,7 @@ final class TraceableToolBox implements ToolBoxInterface
     public array $calls = [];
 
     public function __construct(
-        private ToolBoxInterface $toolBox,
+        private readonly ToolBoxInterface $toolBox,
     ) {
     }
 

src/Resources/config/services.php

@@ -17,7 +17,7 @@
 use PhpLlm\LlmChainBundle\Profiler\DataCollector;
 use PhpLlm\LlmChainBundle\Profiler\TraceableToolBox;
 
-return static function (ContainerConfigurator $container) {
+return static function (ContainerConfigurator $container): void {
     $container->services()
         ->defaults()
             ->autowire()

tests/Profiler/TraceableToolBoxTest.php

@@ -52,7 +52,7 @@ private function createToolBox(array $metadata): ToolBoxInterface
     {
         return new class($metadata) implements ToolBoxInterface {
             public function __construct(
-                private array $metadata,
+                private readonly array $metadata,
             ) {
             }