getAttribute(\Rector\NodeTypeResolver\Node\AttributeKey::PARENT_NODE); /** @var MethodCall $parentParent */ $parentParent = $parent->getAttribute(\Rector\NodeTypeResolver\Node\AttributeKey::PARENT_NODE); $lastMethodCall = new \PhpParser\Node\Expr\MethodCall($parentParent->var, $parentParent->name); $lastMethodCall->args[] = new \PhpParser\Node\Arg($variable); return $lastMethodCall; } }