From d7f4cd696c9245870eabd5f57d3000a70aaad64b Mon Sep 17 00:00:00 2001
From: Benoit Giannangeli <giann008@gmail.com>
Date: Fri, 19 May 2017 15:54:33 +0200
Subject: test dead_weak for undefined in luaH_next

---
 src/ltable.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ltable.js b/src/ltable.js
index a06e5d8..e4d21e2 100644
--- a/src/ltable.js
+++ b/src/ltable.js
@@ -187,7 +187,7 @@ const luaH_next = function(L, table, keyI) {
                 return false;
         } else {
             /* Try dead keys */
-            entry = table.dead_weak.get(hash) || table.dead_strong.get(hash);
+            entry = (table.dead_weak && table.dead_weak.get(hash)) || table.dead_strong.get(hash);
             if (!entry)
                 /* item not in table */
                 return ldebug.luaG_runerror(L, defs.to_luastring("invalid key to 'next'"));
-- 
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