Function luaL_unref

Source/Misc/lua/src/lua.c:10716–10724

LUALIB_API void luaL_unref (lua_State *L, int t, int ref) {
if (ref >= 0) {
t = abs_index(L, t);
lua_rawgeti(L, t, FREELIST_REF);
lua_rawseti(L, t, ref);  /* t[ref] = t[FREELIST_REF] */
lua_pushinteger(L, ref);
lua_rawseti(L, t, FREELIST_REF);  /* t[FREELIST_REF] = ref */
}
}