From d20f84bd70923cabda23930480521c263c2981aa Mon Sep 17 00:00:00 2001
From: Florent Torregrosa <florent.torregrosa@gmail.com>
Date: Sun, 16 Jan 2022 17:59:19 +0100
Subject: [PATCH 1/2] Issue #342 by Grimreaper: PHP 8.1 compatibility. First
 try.

---
 src/Definition/ArrayAccessDefinitionTrait.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Definition/ArrayAccessDefinitionTrait.php b/src/Definition/ArrayAccessDefinitionTrait.php
index 864e4fb7..db733336 100644
--- a/src/Definition/ArrayAccessDefinitionTrait.php
+++ b/src/Definition/ArrayAccessDefinitionTrait.php
@@ -14,6 +14,7 @@ trait ArrayAccessDefinitionTrait {
   /**
    * {@inheritdoc}
    */
+  #[\ReturnTypeWillChange]
   public function offsetExists($offset) {
     return array_key_exists($offset, $this->definition);
   }
@@ -21,6 +22,7 @@ public function offsetExists($offset) {
   /**
    * {@inheritdoc}
    */
+  #[\ReturnTypeWillChange]
   public function offsetGet($offset) {
     return $this->definition[$offset] ?? NULL;
   }
@@ -28,6 +30,7 @@ public function offsetGet($offset) {
   /**
    * {@inheritdoc}
    */
+  #[\ReturnTypeWillChange]
   public function offsetSet($offset, $value) {
     $this->definition[$offset] = $value;
   }
@@ -35,6 +38,7 @@ public function offsetSet($offset, $value) {
   /**
    * {@inheritdoc}
    */
+  #[\ReturnTypeWillChange]
   public function offsetUnset($offset) {
     unset($this->definition[$offset]);
   }

From 5a6c050b1ecabaa5bc17b56f7e587583e0e365e7 Mon Sep 17 00:00:00 2001
From: Florent Torregrosa
 <14238-florenttorregrosa@users.noreply.drupalcode.org>
Date: Sun, 21 Aug 2022 15:05:09 +0200
Subject: [PATCH 2/2] Issue #342: Add PHP 8.1 in PHP version matrix.

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 69482212..04f028a6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        PHP_VERSION: ["7.4", "8.0"]
+        PHP_VERSION: ["7.4", "8.0", "8.1"]
     env:
       PHP_VERSION: ${{ matrix.php_version }}
     steps: