[TypeDeclaration] Skip possibly null on AddParamFromDimFetchKeyUseRector

Author: samsonasik

rules-tests/TypeDeclaration/Rector/ClassMethod/AddParamFromDimFetchKeyUseRector/Fixture/skip_possibly_null.php.inc

@@ -0,0 +1,21 @@
+<?php
+
+namespace Rector\Tests\TypeDeclaration\Rector\ClassMethod\AddParamFromDimFetchKeyUseRector\Fixture;
+
+final class SkipPossiblyNull
+{
+    public function process($key)
+    {
+        if ($key === null) {
+            return;
+        }
+
+        $items = [
+            'first' => 'Firstitem',
+            111 => 'Seconditem',
+            'second' => 'Seconditem',
+        ];
+
+        return $items[$key];
+    }
+}