From ce34bf702adc02eec630cac7abbce16fcbabe9bd Mon Sep 17 00:00:00 2001
From: bjorn <mail@bjornbyt.es>
Date: Fri, 26 May 2023 16:47:58 -0700
Subject: [PATCH] Put back absindex in luax_checkstruct;

I thought it was for error messages, it's for correctness.
---
 src/api/l_graphics_buffer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/api/l_graphics_buffer.c b/src/api/l_graphics_buffer.c
index 1386aaa1..4c83d233 100644
--- a/src/api/l_graphics_buffer.c
+++ b/src/api/l_graphics_buffer.c
@@ -147,6 +147,7 @@ static void luax_tofield(lua_State* L, int index, FieldType type, void* data) {
 
 static void luax_checkstruct(lua_State* L, int index, const BufferField* field, char* data) {
   lovrCheck(lua_istable(L, index), "Expected table for struct data");
+  index = index > 0 ? index : lua_gettop(L) + 1 + index;
 
   if (!field->children[0].name || luax_len(L, index) > 0) {
     for (uint32_t i = 0, j = 1; i < field->childCount; i++) {