卢阿-数数.对表的引用 [英] Lua - Count the no. of references to a table

问题描述

Lua文档说

当程序没有对剩余表的引用时，Lua内存 管理层最终将删除该表并重新使用其内存.

When a program has no references to a table left, Lua memory management will eventually delete the table and reuse its memory.

我的问题是:是否可以在运行时计算对特定表的引用数?

My question is : Is it possible to count the no of references to a particular table during runtime?

推荐答案

您可以使用调试库找到对Lua值的所有引用.查看以下消息:

You can find all references to a Lua value using the debug library. See these messages:

• http://lua-users.org/lists/lua-l/2012-03/msg00479.html
• http://lua-users.org/lists/lua-l/2012-04/msg00758.html

• http://lua-users.org/lists/lua-l/2012-03/msg00479.html
• http://lua-users.org/lists/lua-l/2012-04/msg00758.html

在下面的链接中找到的luatraverse库很好地解决了这个问题！ http://code.matthewwild.co.uk/luatraverse/summary

The luatraverse library found in the below link solves this nicely! http://code.matthewwild.co.uk/luatraverse/summary

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