Improve PHP 8.4+ support by avoiding implicitly nullable types

Author: clue

.github/workflows/ci.yml

@@ -11,6 +11,7 @@ jobs:
     strategy:
       matrix:
         php:
+          - 8.4
           - 8.3
           - 8.2
           - 8.1
@@ -30,6 +31,7 @@ jobs:
     strategy:
       matrix:
         php:
+          - 8.4
           - 8.3
           - 8.2
           - 8.1

composer.json

@@ -28,7 +28,7 @@
     "require": {
         "php": ">=8.1",
         "react/event-loop": "^1.2",
-        "react/promise": "^3.0 || ^2.8 || ^1.2.1"
+        "react/promise": "^3.2@dev || ^2.8 || ^1.2.1"
     },
     "require-dev": {
         "phpstan/phpstan": "1.10.39",

src/FiberFactory.php

@@ -22,7 +22,7 @@ public static function create(): FiberInterface
         return (self::factory())();
     }
 
-    public static function factory(\Closure $factory = null): \Closure
+    public static function factory(?\Closure $factory = null): \Closure
     {
         if ($factory !== null) {
             self::$factory = $factory;