From abc937769dcbc2d76a086dcc359837daa46f768e Mon Sep 17 00:00:00 2001
From: MihailRis <mexaruc@gmail.com>
Date: Mon, 18 Aug 2025 23:56:46 +0300
Subject: [PATCH] add nil checks for inventory id, slot index to inventory slot
 related functions

---
 src/logic/scripting/lua/libs/libinventory.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/logic/scripting/lua/libs/libinventory.cpp b/src/logic/scripting/lua/libs/libinventory.cpp
index 629283a7..5ed3f8cc 100644
--- a/src/logic/scripting/lua/libs/libinventory.cpp
+++ b/src/logic/scripting/lua/libs/libinventory.cpp
@@ -45,6 +45,12 @@ namespace {
 
     template <SlotFunc func>
     int wrap_slot(lua::State* L) {
+        if (lua::isnoneornil(L, 1)) {
+            throw std::runtime_error("inventory id is nil");
+        }
+        if (lua::isnoneornil(L, 2)) {
+            throw std::runtime_error("slot index is nil");
+        }
         auto invid = lua::tointeger(L, 1);
         auto slotid = lua::tointeger(L, 2);
         auto& inv = get_inventory(invid);