From c709121ca74a693c6f0feca0cdb03d5b50bd630c Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Sun, 15 Oct 2017 11:42:33 +0200
Subject: util.debug: Produce a sensible name for nameless upvalues to C
 functions

---
 util/debug.lua | 1 +
 1 file changed, 1 insertion(+)

(limited to 'util')

diff --git a/util/debug.lua b/util/debug.lua
index 00f476d0..e736d0dd 100644
--- a/util/debug.lua
+++ b/util/debug.lua
@@ -47,6 +47,7 @@ local function get_upvalues_table(func)
 		for upvalue_num = 1, math.huge do
 			local name, value = debug.getupvalue(func, upvalue_num);
 			if not name then break; end
+			if name == "" then name = ("[%d]"):format(upvalue_num); end
 			table.insert(upvalues, { name = name, value = value });
 		end
 	end
-- 
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