Use readonly properties

build/rector-downgrade.php

@@ -12,6 +12,7 @@
 use Rector\DowngradePhp80\Rector\FunctionLike\DowngradeMixedTypeDeclarationRector;
 use Rector\DowngradePhp80\Rector\FunctionLike\DowngradeUnionTypeDeclarationRector;
 use Rector\DowngradePhp80\Rector\Property\DowngradeUnionTypeTypedPropertyRector;
+use Rector\DowngradePhp81\Rector\Property\DowngradeReadonlyPropertyRector;
 
 return static function (RectorConfig $config): void {
 	$parsePhpVersion = static function (string $version, int $defaultPatch = 0): int {
@@ -27,6 +28,10 @@
 	$config->phpVersion($targetPhpVersionId);
 	$config->skip(RectorCache::SKIP_PATHS);
 
+	if ($targetPhpVersionId < 80100) {
+		$config->rule(DowngradeReadonlyPropertyRector::class);
+	}
+
 	if ($targetPhpVersionId < 80000) {
 		$config->rule(DowngradeTrailingCommasInParamUseRector::class);
 		$config->rule(DowngradeNonCapturingCatchesRector::class);

src/Analyser/NodeScopeResolver.php

@@ -188,24 +188,24 @@ class NodeScopeResolver
 	 * @param array<int, string> $earlyTerminatingFunctionCalls
 	 */
 	public function __construct(
-		private ReflectionProvider $reflectionProvider,
-		private InitializerExprTypeResolver $initializerExprTypeResolver,
-		private Reflector $reflector,
-		private ClassReflectionExtensionRegistryProvider $classReflectionExtensionRegistryProvider,
-		private Parser $parser,
-		private FileTypeMapper $fileTypeMapper,
-		private StubPhpDocProvider $stubPhpDocProvider,
-		private PhpVersion $phpVersion,
-		private PhpDocInheritanceResolver $phpDocInheritanceResolver,
-		private FileHelper $fileHelper,
-		private TypeSpecifier $typeSpecifier,
-		private DynamicThrowTypeExtensionProvider $dynamicThrowTypeExtensionProvider,
-		private ReadWritePropertiesExtensionProvider $readWritePropertiesExtensionProvider,
-		private bool $polluteScopeWithLoopInitialAssignments,
-		private bool $polluteScopeWithAlwaysIterableForeach,
-		private array $earlyTerminatingMethodCalls,
-		private array $earlyTerminatingFunctionCalls,
-		private bool $implicitThrows,
+		private readonly ReflectionProvider $reflectionProvider,
+		private readonly InitializerExprTypeResolver $initializerExprTypeResolver,
+		private readonly Reflector $reflector,
+		private readonly ClassReflectionExtensionRegistryProvider $classReflectionExtensionRegistryProvider,
+		private readonly Parser $parser,
+		private readonly FileTypeMapper $fileTypeMapper,
+		private readonly StubPhpDocProvider $stubPhpDocProvider,
+		private readonly PhpVersion $phpVersion,
+		private readonly PhpDocInheritanceResolver $phpDocInheritanceResolver,
+		private readonly FileHelper $fileHelper,
+		private readonly TypeSpecifier $typeSpecifier,
+		private readonly DynamicThrowTypeExtensionProvider $dynamicThrowTypeExtensionProvider,
+		private readonly ReadWritePropertiesExtensionProvider $readWritePropertiesExtensionProvider,
+		private readonly bool $polluteScopeWithLoopInitialAssignments,
+		private readonly bool $polluteScopeWithAlwaysIterableForeach,
+		private readonly array $earlyTerminatingMethodCalls,
+		private readonly array $earlyTerminatingFunctionCalls,
+		private readonly bool $implicitThrows,
 	)
 	{
 		$earlyTerminatingMethodNames = [];