removed RecursiveComponentIterator, replaced by generator

Author: dg

src/ComponentModel/Container.php

@@ -186,12 +186,7 @@ final public function getComponents(): iterable
 	{
 		$filterType = func_get_args()[1] ?? null;
 		if (func_get_args()[0] ?? null) { // back compatibility
-			$iterator = new RecursiveComponentIterator($this->components);
-			$iterator = new \RecursiveIteratorIterator($iterator, \RecursiveIteratorIterator::SELF_FIRST);
-			if ($filterType) {
-				$iterator = new \CallbackFilterIterator($iterator, fn($item) => $item instanceof $filterType);
-			}
-			return $iterator;
+			return $this->getComponentsRecursive($filterType);
 		}
 
 		return $filterType
@@ -200,6 +195,19 @@ final public function getComponents(): iterable
 	}
 
 
+	private function getComponentsRecursive(?string $filterType): \Generator
+	{
+		foreach ($this->components as $name => $component) {
+			if (!$filterType || $component instanceof $filterType) {
+				yield $name => $component;
+			}
+			if ($component instanceof IContainer) {
+				yield from $component->getComponentsRecursive($filterType);
+			}
+		}
+	}
+
+
 	/**
 	 * Retrieves the entire hierarchy of components, including all nested child components (depth-first).
 	 * @return list<IComponent>