From 0de1754b21c4ed75e9e1be941caf5f5ed1fa63b4 Mon Sep 17 00:00:00 2001
From: jyelon <jyelon@gmail.com>
Date: Tue, 29 Mar 2022 15:58:30 -0400
Subject: [PATCH] Fix a stack overflow in pprint::findtables

---
 luprex/core/cpp/pprint.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/luprex/core/cpp/pprint.cpp b/luprex/core/cpp/pprint.cpp
index 850b80a9..8185a11f 100644
--- a/luprex/core/cpp/pprint.cpp
+++ b/luprex/core/cpp/pprint.cpp
@@ -62,13 +62,14 @@ static void findtables(LuaStack &LS0, LuaSlot root, LuaSlot tabcount) {
         lua_pushvalue(L, root.index());
     }
     while (lua_gettop(L) > top) {
-        lua_checkstack(L, 10);
+        lua_checkstack(L, 20);
         lua_replace(L, tab.index());
         LS.rawget(count, tabcount, tab);
         if (LS.isnil(count)) {
             LS.rawset(tabcount, tab, 0);
             LS.set(key, LuaNil);
             while (LS.next(tab, key, val)) {
+                lua_checkstack(L, 20);
                 if (LS.istable(key)) {
                     lua_pushvalue(L, key.index());
                 }