commit 993c58fde3a85c27f52f094002ec57dabca81028
author Roberto Ierusalimschy <roberto@inf.puc-rio.br> Mon Jun 15 12:01:36 2020 -0300
committer Roberto Ierusalimschy <roberto@inf.puc-rio.br> Mon Jun 15 12:01:36 2020 -0300
tree a58dcffd888199bc67da47462f9adc9c3cf5d949
parent d49b2887282b86a5e6f40a386511aa8040f3c7b0

In 'lua_checkmemory', userdata can be gray, too

Since commit ca6fe7449a74, userdata with uservalues can be gray
and can belong to gray lists ('gclist').

ltests.c

diff --git a/ltests.c b/ltests.c
index 314505c..63ad449 100644
--- a/ltests.c
+++ b/ltests.c
@@ -519,6 +519,10 @@
       case LUA_VCCL: o = gco2ccl(o)->gclist; break;
       case LUA_VTHREAD: o = gco2th(o)->gclist; break;
       case LUA_VPROTO: o = gco2p(o)->gclist; break;
+      case LUA_VUSERDATA:
+        lua_assert(gco2u(o)->nuvalue > 0);
+        o = gco2u(o)->gclist;
+        break;
       default: lua_assert(0);  /* other objects cannot be in a gray list */
     }
   }