#38, #40 Use reflection for robust resolving parent class

Author: Pavel Alexeev

src/Parser/ClassParser.php

@@ -184,28 +184,18 @@ private function getParentClassStatements(): ?array
     {
         /** @var class-string[] $usedClasses */
         $usedClasses = $this->getUsedClasses();
-        $parentClass = $this->getParentClassName();
-
-        if (null === $parentClass) {
-            return [];
-        }
-
-        if (null !== @$usedClasses[$this->getParentClassName()]) {
-            $parentClass = $usedClasses[$this->getParentClassName()];
-        }
 
         try {
-            $rc = new ReflectionClass($parentClass);
+            $pc = (new ReflectionClass($this->getNamespace() . '\\' . $this->getClassName()))->getParentClass();
         }
         catch (\ReflectionException $e) {
-            try {
-                $rc = new ReflectionClass($this->getNamespace() . '\\' . $parentClass);
-            }
-            catch (\ReflectionException $e) {
-                throw new ReflectionException("Parent class [{$parentClass}] for [{$this->getNamespace()}\\{$this->getClassName()}] not found!", $e->getCode(), $e);
-            }
+            throw new ReflectionException("Can't get parent class for [{$this->getNamespace()}\\{$this->getClassName()}]!", $e->getCode(), $e);
         }
-        $filename = $rc->getFileName();
+        if (false === $pc) {
+            return [];
+        }
+
+        $filename = $pc->getFileName();
 
         if (false === $filename) {
             return [];