From c67273f7b738cad42197d9f43a1e988dbe41fcbe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fran=C3=A7ois-Xavier=20de=20Guillebon?= <deguif@gmail.com>
Date: Tue, 4 Oct 2022 18:18:18 +0200
Subject: [PATCH] Fix return type for union type with intersection

---
 src/Proxy/ProxyGenerator.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Proxy/ProxyGenerator.php b/src/Proxy/ProxyGenerator.php
index 54275bc48..5d5b67e38 100644
--- a/src/Proxy/ProxyGenerator.php
+++ b/src/Proxy/ProxyGenerator.php
@@ -1224,6 +1224,10 @@ private function formatType(
         if ($type instanceof ReflectionUnionType) {
             return implode('|', array_map(
                 function (ReflectionType $unionedType) use ($method, $parameter) {
+                    if ($unionedType instanceof ReflectionIntersectionType) {
+                        return '(' . $this->formatType($unionedType, $method, $parameter) . ')';
+                    }
+
                     return $this->formatType($unionedType, $method, $parameter);
                 },
                 $type->getTypes()