Re: Lua GC optimize of some tricks

[云风 Cloud Wu <cloudwu@...>]

Xianfu Pan <pxfgod@gmail.com>于2017年1月11日周三 下午4:06写道：

Greetings, dear Wu:

No, the first idea came to my mind was to call `luaH_resize(L, h, 0, 0)`.　it failed and crashed!

I have read the code of `luaH_resize(L, h, 0, 0)`, it only re-size the space but NOT deal with **ref-relationship** among gc objects. 

objects will be freed in C, but available in lua, thus it crashed.

table.clear() was discussed during lua 5.3 alpha stage :

http://lua-users.org/lists/lua-l/2013-11/msg00669.html

http://lua-users.org/lists/lua-l/2014-08/msg00091.html