From 570f5f9602243f99668d8c9fcd8df588584712b8 Mon Sep 17 00:00:00 2001
From: akvlad <akvlad90@gmail.com>
Date: Wed, 14 Feb 2024 11:03:02 +0200
Subject: [PATCH] check if e is undefined

---
 parser/registry/parser_registry/drop.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/parser/registry/parser_registry/drop.js b/parser/registry/parser_registry/drop.js
index f98e2fcc..f8a77909 100644
--- a/parser/registry/parser_registry/drop.js
+++ b/parser/registry/parser_registry/drop.js
@@ -30,7 +30,7 @@ const viaClickhouseQuery = (token, query) => {
 const viaStream = (token, query) => {
   const labelsToDrop = token.Children('label').map(l => l.value)
   addStream(query, (s) => s.map(e => {
-    if (!e.labels) {
+    if (!e || !e.labels) {
       return e
     }
     for (const l of labelsToDrop) {
@@ -44,4 +44,4 @@ const viaStream = (token, query) => {
 module.exports = {
   viaClickhouseQuery,
   viaStream
-}
\ No newline at end of file
+}