add traverser (#1008)

Author: dododedodonl

src/Extracting/MethodAstParser.php

@@ -5,6 +5,8 @@
 use Exception;
 use PhpParser\Node;
 use PhpParser\NodeFinder;
+use PhpParser\NodeTraverser;
+use PhpParser\NodeVisitor\NameResolver;
 use PhpParser\ParserFactory;
 use ReflectionFunctionAbstract;
 use Throwable;
@@ -50,6 +52,13 @@ protected static function parseClassSourceCode(string $sourceCode): ?array
             throw new Exception("Parse error: {$error->getMessage()}");
         }
 
+        $traverser = new NodeTraverser(new NameResolver(options: ['replaceNodes' => false]));
+        try {
+            $traverser->traverse($ast);
+        } catch (Throwable $error) {
+            throw new Exception("Traverse error: {$error->getMessage()}");
+        }
+
         return $ast;
     }