From 0f2b5bba8b6364f178a8ec4c615b764c17df0afa Mon Sep 17 00:00:00 2001
From: "Alexander M. Turek" <me@derrabus.de>
Date: Tue, 21 Dec 2021 11:43:13 +0100
Subject: [PATCH] Restore return type to covariant IteratorAggregate
 implementations

---
 src/Symfony/Component/EventDispatcher/GenericEvent.php          | 2 ++
 src/Symfony/Component/HttpFoundation/HeaderBag.php              | 2 ++
 src/Symfony/Component/HttpFoundation/ParameterBag.php           | 2 ++
 .../Component/HttpFoundation/Session/Attribute/AttributeBag.php | 2 ++
 src/Symfony/Component/HttpFoundation/Session/Session.php        | 2 ++
 5 files changed, 10 insertions(+)

diff --git a/src/Symfony/Component/EventDispatcher/GenericEvent.php b/src/Symfony/Component/EventDispatcher/GenericEvent.php
index 4a573f8fa92fa..68a20306334c3 100644
--- a/src/Symfony/Component/EventDispatcher/GenericEvent.php
+++ b/src/Symfony/Component/EventDispatcher/GenericEvent.php
@@ -148,6 +148,8 @@ public function offsetExists(mixed $key): bool
 
     /**
      * IteratorAggregate for iterating over the object like an array.
+     *
+     * @return \ArrayIterator<string, mixed>
      */
     public function getIterator(): \ArrayIterator
     {
diff --git a/src/Symfony/Component/HttpFoundation/HeaderBag.php b/src/Symfony/Component/HttpFoundation/HeaderBag.php
index 74bc1f46b9c2d..0883024b3b50b 100644
--- a/src/Symfony/Component/HttpFoundation/HeaderBag.php
+++ b/src/Symfony/Component/HttpFoundation/HeaderBag.php
@@ -238,6 +238,8 @@ public function removeCacheControlDirective(string $key)
 
     /**
      * Returns an iterator for headers.
+     *
+     * @return \ArrayIterator<string, list<string|null>>
      */
     public function getIterator(): \ArrayIterator
     {
diff --git a/src/Symfony/Component/HttpFoundation/ParameterBag.php b/src/Symfony/Component/HttpFoundation/ParameterBag.php
index 4e67088f6938c..6044dac9fad7f 100644
--- a/src/Symfony/Component/HttpFoundation/ParameterBag.php
+++ b/src/Symfony/Component/HttpFoundation/ParameterBag.php
@@ -171,6 +171,8 @@ public function filter(string $key, mixed $default = null, int $filter = \FILTER
 
     /**
      * Returns an iterator for parameters.
+     *
+     * @return \ArrayIterator<string, mixed>
      */
     public function getIterator(): \ArrayIterator
     {
diff --git a/src/Symfony/Component/HttpFoundation/Session/Attribute/AttributeBag.php b/src/Symfony/Component/HttpFoundation/Session/Attribute/AttributeBag.php
index 283777083edc3..11b884a717d6f 100644
--- a/src/Symfony/Component/HttpFoundation/Session/Attribute/AttributeBag.php
+++ b/src/Symfony/Component/HttpFoundation/Session/Attribute/AttributeBag.php
@@ -130,6 +130,8 @@ public function clear(): mixed
 
     /**
      * Returns an iterator for attributes.
+     *
+     * @return \ArrayIterator<string, mixed>
      */
     public function getIterator(): \ArrayIterator
     {
diff --git a/src/Symfony/Component/HttpFoundation/Session/Session.php b/src/Symfony/Component/HttpFoundation/Session/Session.php
index 1a0230bac516f..3254f1885ec5d 100644
--- a/src/Symfony/Component/HttpFoundation/Session/Session.php
+++ b/src/Symfony/Component/HttpFoundation/Session/Session.php
@@ -128,6 +128,8 @@ public function isStarted(): bool
 
     /**
      * Returns an iterator for attributes.
+     *
+     * @return \ArrayIterator<string, mixed>
      */
     public function getIterator(): \ArrayIterator
     {