related vendor fix (#457)

Co-authored-by: Richard Riki Popeliš <popelis@efabrica.sk>

Author: riki137

CHANGELOG.md

@@ -1,9 +1,10 @@
 # Change Log
 
 ## [Unreleased][unreleased]
-
 ### Updated
 - Coding standard
+### Fixed
+- RelatedFilesCollector collecting classes that were not present in vendor
 
 ## [0.17.0] - 2024-03-27
 ### Fixed

src/LatteContext/Collector/RelatedFilesCollector.php

@@ -89,7 +89,7 @@ public function collectData(Node $node, Scope $scope): array
                 $newClassNames = [$this->nameResolver->resolve($node->class)];
             }
             foreach ($newClassNames as $newClassName) {
-                if ($newClassName !== null && !in_array($newClassName, ['this', 'self', 'static', 'parent'], true)) {
+                if ($newClassName !== null && !in_array($newClassName, ['this', 'self', 'static', 'parent'], true) && class_exists($newClassName)) {
                     $classReflection = $this->reflectionProvider->getClass($newClassName);
                     if (!$classReflection->isInterface() && !$classReflection->isTrait()) {
                         $filename = $this->getFilename($classReflection);