Update to Symfony 5.4

build/rector-downgrade-symfony.php

@@ -0,0 +1,18 @@
+<?php declare(strict_types=1);
+
+use Rector\Core\Configuration\Option;
+use Rector\Core\ValueObject\PhpVersion;
+use Rector\DowngradePhp72\Rector\FuncCall\DowngradePregUnmatchedAsNullConstantRector;
+use Rector\DowngradePhp72\Rector\FuncCall\DowngradeStreamIsattyRector;
+use Rector\DowngradePhp72\Rector\FunctionLike\DowngradeObjectTypeDeclarationRector;
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+
+return static function (ContainerConfigurator $containerConfigurator): void {
+	$parameters = $containerConfigurator->parameters();
+	$parameters->set(Option::PHP_VERSION_FEATURES, PhpVersion::PHP_71);
+
+	$services = $containerConfigurator->services();
+	$services->set(DowngradeObjectTypeDeclarationRector::class);
+	$services->set(DowngradePregUnmatchedAsNullConstantRector::class);
+	$services->set(DowngradeStreamIsattyRector::class);
+};

build/rector-downgrade.php

@@ -1,6 +1,7 @@
 <?php declare(strict_types=1);
 
 use Rector\Core\Configuration\Option;
+use Rector\Core\ValueObject\PhpVersion;
 use Rector\DowngradePhp72\Rector\FunctionLike\DowngradeObjectTypeDeclarationRector;
 use Rector\DowngradePhp73\Rector\FuncCall\DowngradeTrailingCommasInFunctionCallsRector;
 use Rector\DowngradePhp74\Rector\Coalesce\DowngradeNullCoalescingOperatorRector;
@@ -11,6 +12,7 @@
 return static function (ContainerConfigurator $containerConfigurator): void {
 	$parameters = $containerConfigurator->parameters();
 
+	$parameters->set(Option::PHP_VERSION_FEATURES, PhpVersion::PHP_71);
 	$parameters->set(Option::SKIP, [
 		'tests/*/data/*',
 		'tests/PHPStan/Analyser/traits/*',

build/transform-source

@@ -5,3 +5,5 @@ set -o pipefail
 set -o nounset
 
 vendor/bin/rector process src tests/PHPStan tests/e2e -c build/rector-downgrade.php
+
+vendor/bin/rector process vendor/symfony -c build/rector-downgrade-symfony.php || true

composer.json

@@ -32,9 +32,9 @@
 		"react/promise": "^2.8",
 		"react/socket": "^1.3",
 		"react/stream": "^1.1",
-		"symfony/console": "^4.4.30",
-		"symfony/finder": "^4.4.30",
-		"symfony/service-contracts": "1.1.8"
+		"symfony/console": "^5.4.1",
+		"symfony/finder": "^5.4.0",
+		"symfony/service-contracts": "^2.5.0"
 	},
 	"replace": {
 		"phpstan/phpstan": "self.version"