Re: tag methods question

[Roberto Ierusalimschy <roberto@...>]

> I have to agree.  set/getglobal tag methods should be removed just like
> foreachvar and all the other *global functions.  They are all just special
> cases of the appropriate table functions.

set/getglobal tag methods act differently from gettable/settable methods. 
The later act based on the table tag, while the former act based on the 
value tag. With gettable/settable methods, we would have only one tag 
method for all globals: the method set for the table of globals. With 
set/getglobal tag methods, we can have different methods for different 
kinds of globals.

Most of our uses of tag methods for globals (detecting non-declared 
globals, tracing global assignments, detecting function redefinitions, 
etc.) set these methods for only one (or a few) tag. 

-- Roberto