Perform some stan related code updates

composer.json

@@ -37,10 +37,11 @@
         "symfony/polyfill-mbstring": "^1.12"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.5",
-        "phpstan/phpstan": "^1.3",
+        "ext-mbstring": "*",
         "friendsofphp/php-cs-fixer": "^3",
-        "ext-mbstring": "*"
+        "phpstan/phpstan": "^1.3",
+        "phpunit/phpunit": "^9.5",
+        "rector/rector": "^0.13.5"
     },
     "autoload": {
         "classmap": [

rector.php

@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\CodeQuality\Rector\FuncCall\IntvalToTypeCastRector;
+use Rector\Config\RectorConfig;
+use Rector\Php55\Rector\String_\StringClassNameToClassConstantRector;
+use Rector\Php73\Rector\FuncCall\JsonThrowOnErrorRector;
+use Rector\Php74\Rector\Closure\ClosureToArrowFunctionRector;
+use Rector\Php74\Rector\LNumber\AddLiteralSeparatorToNumberRector;
+use Rector\Php74\Rector\Property\TypedPropertyRector;
+use Rector\Php80\Rector\FunctionLike\UnionTypesRector;
+use Rector\PostRector\Rector\NameImportingPostRector;
+use Rector\Set\ValueObject\LevelSetList;
+use Rector\Set\ValueObject\SetList;
+
+return static function (RectorConfig $rector_config): void {
+	// Path to phpstan with extensions, that PHPSTan in Rector uses to determine types
+	$rector_config->phpstanConfig(__DIR__ . '/phpstan.neon');
+
+	// Define what rule sets will be applied
+	$rector_config->import(SetList::DEAD_CODE);
+	$rector_config->skip([
+		StringClassNameToClassConstantRector::class,
+		UnionTypesRector::class,
+		JsonThrowOnErrorRector::class,
+
+	]);
+
+	// define sets of rules
+	$rector_config->sets([
+		LevelSetList::UP_TO_PHP_81,
+	]);
+
+	$services = $rector_config->services();
+
+	$services->set(TypedPropertyRector::class);
+	$services->set(IntvalToTypeCastRector::class);
+	$services->set(AddLiteralSeparatorToNumberRector::class);
+	$services->set(ClosureToArrowFunctionRector::class);
+	$services->set(NameImportingPostRector::class);
+};

src/Dom/SaxXmlParser.php

@@ -479,7 +479,7 @@ private function checkEncoding(string $str): string
             $forbid = '/((?>[\x00-\x08\x0B\x0C\x0E-\x1F\x7F-\x84\x86-\x9F]+))/s';
 
             if (preg_match($forbid, $str)) {
-                $str = preg_replace_callback($forbid, ['self', 'convertBytesToEntities'], $str);
+                $str = preg_replace_callback($forbid, fn (array $element): string => self::convertBytesToEntities($element), $str);
                 $this->raiseError('Invalid ISO-8859-1 characters: ' . $str);
             }
         }

src/Exception/TemplateException.php

@@ -121,7 +121,6 @@ private function findFileAndLine(): array
         }
 
         $eval_line = 0;
-        $eval_path = null;
 
         // searches backtrace to find template file
         foreach ($this->getTrace() as $tr) {
@@ -135,9 +134,9 @@ private function findFileAndLine(): array
 
             // PHPTAL.php uses eval() on first run to catch fatal errors. This makes template path invisible.
             // However, function name matches template path and eval() is visible in backtrace.
-            if (strpos($tr['file'], 'eval()') !== false) {
+            if (str_contains($tr['file'], 'eval()')) {
                 $eval_line = $tr['line'];
-            } elseif ($eval_line && isset($tr['function'], $tr['args'][0]) &&
+            } elseif ($eval_line && isset($tr['args'][0]) &&
                 $this->isTemplatePath('/' . $tr['function'] . '.php') && $tr['args'][0] instanceof PHPTAL) {
                 return [$tr['args'][0]->getCodePath(), $eval_line];
             }