Stub with @mixin for RecursiveIteratorIterator

stubs/iterable.stub

@@ -176,3 +176,26 @@ class DOMNodeList implements Traversable
 	public function item ($index) {}
 
 }
+
+/**
+ * @template T
+ * @mixin T
+ */
+class RecursiveIteratorIterator
+{
+
+	/**
+	 * @param T $iterator
+	 * @param int $mode
+	 * @param int $flags
+	 */
+	public function __construct(
+		$iterator,
+		$mode = RecursiveIteratorIterator::LEAVES_ONLY,
+		int $flags = 0
+	)
+	{
+
+	}
+
+}

tests/PHPStan/Rules/Methods/CallMethodsRuleTest.php

@@ -1275,4 +1275,17 @@ public function testMixin(): void
 		]);
 	}
 
+	public function testRecursiveIteratorIterator(): void
+	{
+		$this->checkThisOnly = false;
+		$this->checkNullables = true;
+		$this->checkUnionTypes = true;
+		$this->analyse([__DIR__ . '/data/recursive-iterator-iterator.php'], [
+			[
+				'Method RecursiveDirectoryIterator::getSubPathname() invoked with 1 parameter, 0 required.',
+				14,
+			],
+		]);
+	}
+
 }

tests/PHPStan/Rules/Methods/data/recursive-iterator-iterator.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace RecursiveIteratorIteratorMixin;
+
+class Foo
+{
+
+	public function doFoo(): void
+	{
+		$it = new \RecursiveDirectoryIterator(__DIR__);
+		$it = new \RecursiveIteratorIterator($it);
+		foreach ($it as $_) {
+			echo $it->getSubPathname();
+			echo $it->getSubPathname(1);
+		}
+	}
+
+}