Nullable types for 8.4

Author: dantleech

lib/Adapter/DTL/DTLArgumentResolver.php

@@ -16,7 +16,7 @@ final class DTLArgumentResolver implements ArgumentResolver
      */
     private $dtlArgumnetResolver;
 
-    public function __construct(UpstreamArgumentResolver $dtlArgumnetResolver = null)
+    public function __construct(?UpstreamArgumentResolver $dtlArgumnetResolver = null)
     {
         $this->dtlArgumnetResolver = $dtlArgumnetResolver ?: new UpstreamArgumentResolver([
             new RecursiveInstantiator()

lib/LanguageServerBuilder.php

@@ -52,7 +52,7 @@ private function __construct(
      */
     public static function create(
         DispatcherFactory $dispatcherFactory,
-        LoggerInterface $logger = null
+        ?LoggerInterface $logger = null
     ): self {
         return new self(
             $dispatcherFactory,

lib/Test/LanguageServerTester.php

@@ -87,7 +87,7 @@ public function requestAndWait(string $method, $params, $id = null): ?ResponseMe
     /**
      * @param array|object $params
      */
-    public function mustRequestAndWait(string $method, mixed $params, int|string $id = null): ResponseMessage
+    public function mustRequestAndWait(string $method, mixed $params, int|string|null $id = null): ResponseMessage
     {
         $response = $this->requestAndWait($method, $params);