From 92cebdcc374a7bb4bf59e1186076433e45cc1138 Mon Sep 17 00:00:00 2001
From: Datong Sun <dndx@idndx.com>
Date: Thu, 13 Jan 2022 08:47:48 +0800
Subject: bugfix: empty_array can not work on Apple because csjon did not
 compare light userdata address with masked address (#82)

Since we used `json_lightudata_mask` when creating lightuserdata, same
mask should be applied when comparing the return of `touserdata`

Fixes #81.
---
 lua_cjson.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lua_cjson.c')

diff --git a/lua_cjson.c b/lua_cjson.c
index ff61c47..df1794b 100644
--- a/lua_cjson.c
+++ b/lua_cjson.c
@@ -800,7 +800,7 @@ static void json_append_data(lua_State *l, json_config_t *cfg,
     case LUA_TLIGHTUSERDATA:
         if (lua_touserdata(l, -1) == NULL) {
             strbuf_append_mem(json, "null", 4);
-        } else if (lua_touserdata(l, -1) == &json_array) {
+        } else if (lua_touserdata(l, -1) == json_lightudata_mask(&json_array)) {
             json_append_array(l, cfg, current_depth, json, 0);
         }
         break;
-- 
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