AW: *****SPAM***** Re: Standard metatable

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AW: *****SPAM***** Re: Standard metatable

Sebastian Rohde
Thanks ;-) This was the information which pointed me towards triple checking
some legacy code... Which was based on terrible assumptions and which leaded
to a wrong index for lua_getmetatable.

Sebastian

-----Ursprüngliche Nachricht-----
Von: [hidden email]
[mailto:[hidden email]] Im Auftrag von Julien Cugnière
Gesendet: Dienstag, 28. März 2006 13:46
An: Lua list
Betreff: *****SPAM***** Re: Standard metatable

2006/3/28, Sebastian Rohde <[hidden email]>:
> > While working on our lua_State serialization I found that lua tables
seem
> > to have a metatable even if it seems that none has been set by the user
or
> > by our code. Is that correct?
> > Can this metatable be safely ignored and how can I distinguish this
> > metatable from user defined to ignore it during serialization? (And why
> > did this metatable not have this standard metatable?)

I'm not sure why your tables have a metatable. Here's what I get with
Lua 5.1 final:

    Lua 5.1  Copyright (C) 1994-2006 Lua.org, PUC-Rio
    > print(getmetatable({}))
    nil
    > print(debug.getmetatable({}))
    nil

So your tables must be getting their metatable from somewhere in your
code... Have you tried looking at the content of those metatables ?

--
Julien Cugnière