From 5a84f3b140d49eea7d49c1f16e41f5daeb72cda6 Mon Sep 17 00:00:00 2001
From: "erpeldinger.g" <guillaume.erpeldinger@egis-group.com>
Date: Thu, 6 Feb 2025 17:37:13 +0100
Subject: [PATCH] fix(issue-107): explicit nullable type

---
 src/CipherSweet.php              | 2 +-
 src/EncryptedField.php           | 2 +-
 src/EncryptedRow.php             | 4 ++--
 tests/EncryptedMultiRowsTest.php | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/CipherSweet.php b/src/CipherSweet.php
index f00d77d..59830b0 100644
--- a/src/CipherSweet.php
+++ b/src/CipherSweet.php
@@ -36,7 +36,7 @@ final class CipherSweet
      */
     public function __construct(
         KeyProviderInterface $keyProvider,
-        BackendInterface $backend = null
+        ?BackendInterface $backend = null
     ) {
         $this->keyProvider = $keyProvider;
         $this->backend = $backend ?: new BoringCrypto();
diff --git a/src/EncryptedField.php b/src/EncryptedField.php
index 4fdd31d..f74130d 100644
--- a/src/EncryptedField.php
+++ b/src/EncryptedField.php
@@ -266,7 +266,7 @@ protected function getBlindIndexRaw(
         #[\SensitiveParameter]
         string $name,
         #[\SensitiveParameter]
-        SymmetricKey $key = null
+        ?SymmetricKey $key = null
     ): string {
         if (!isset($this->blindIndexes[$name])) {
             throw new BlindIndexNotFoundException(
diff --git a/src/EncryptedRow.php b/src/EncryptedRow.php
index 0a66899..05d0420 100644
--- a/src/EncryptedRow.php
+++ b/src/EncryptedRow.php
@@ -814,7 +814,7 @@ protected function calcBlindIndexRaw(
         array $row,
         string $column,
         BlindIndex $index,
-        SymmetricKey $key = null
+        ?SymmetricKey $key = null
     ): string {
         if (!$key) {
             $key = $this->engine->getBlindIndexRootKey(
@@ -879,7 +879,7 @@ protected function calcCompoundIndexRaw(
         #[\SensitiveParameter]
         array $row,
         CompoundIndex $index,
-        SymmetricKey $key = null
+        ?SymmetricKey $key = null
     ): string {
         if (!$key) {
             $key = $this->engine->getBlindIndexRootKey(
diff --git a/tests/EncryptedMultiRowsTest.php b/tests/EncryptedMultiRowsTest.php
index d879a6a..b7bc6e9 100644
--- a/tests/EncryptedMultiRowsTest.php
+++ b/tests/EncryptedMultiRowsTest.php
@@ -236,7 +236,7 @@ private function getDummyPlaintext(): array
      * @throws CipherSweetException
      * @throws SodiumException
      */
-    public function testXAllEngines(CipherSweet $engine = null): void
+    public function testXAllEngines(?CipherSweet $engine = null): void
     {
         $mr = $this->getMultiRows($engine);
         $rows = $this->getDummyPlaintext();