From 5b12542d391b1a5b1c6f2438ab5983c50c4c75e2 Mon Sep 17 00:00:00 2001
From: Linus Groh <mail@linusgroh.de>
Date: Sat, 7 Aug 2021 23:13:16 +0100
Subject: [PATCH] LibJS: Fix Vector<Value> => MarkedValueList in
 calendar_fields()

We need to ensure the temporary PrimitiveString cells don't get GC'd.
---
 Userland/Libraries/LibJS/Runtime/Temporal/Calendar.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Userland/Libraries/LibJS/Runtime/Temporal/Calendar.cpp b/Userland/Libraries/LibJS/Runtime/Temporal/Calendar.cpp
index c21cd5f030..cf64642c65 100644
--- a/Userland/Libraries/LibJS/Runtime/Temporal/Calendar.cpp
+++ b/Userland/Libraries/LibJS/Runtime/Temporal/Calendar.cpp
@@ -97,7 +97,7 @@ Vector<String> calendar_fields(GlobalObject& global_object, Object& calendar, Ve
         return {};
 
     // 2. Let fieldsArray be ! CreateArrayFromList(fieldNames).
-    Vector<Value> field_names_values;
+    auto field_names_values = MarkedValueList { vm.heap() };
     for (auto& field_name : field_names)
         field_names_values.append(js_string(vm, field_name));
     Value fields_array = Array::create_from(global_object, field_names_values);