error report on sharedata newindex

imrocky · Apr 24, 2017 · 3b6b312 · 3b6b312
1 parent 89d7719
commit 3b6b312
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/lualib/sharedata/corelib.lua b/lualib/sharedata/corelib.lua
@@ -71,14 +71,18 @@ local function getcobj(self)
 	return obj
 end
 
+function meta:__newindex(key, value)
+	error ("Error newindex, the key [" .. genkey(self) .. "]")
+end
+
 function meta:__index(key)
 	local obj = getcobj(self)
 	local v = index(obj, key)
 	if type(v) == "userdata" then
 		local children = self.__cache
 		if children == nil then
 			children = {}
-			self.__cache = children
+			rawset(self, "__cache", children)
 		end
 		local r = children[key]
 		if r then