Re: [Boost-users] Library Interface Design

From: Joel de Guzman (joel_at_[hidden])
Date: 2006-09-14 19:55:26

Jens Theisen wrote:
> Joel de Guzman <joel_at_[hidden]> writes:
> 
>> Well, the proper mailing list is:
>> https://lists.sourceforge.net/lists/listinfo/spirit-general
> 
> It also fits very well into this thread.
> 
>> Yeah. You did miss something. The closure members can be initialized.
>> See "Initializing closure variables" section in http://tinyurl.com/85hbq
> 
> And, to stick with my example, what would be a good initialisation for
> a plus_expression?
> 
> You don't want to replace default construction with a copy from what's
> conceptionally a default. The topic question of this thread is about
> whether or not you should construct objects prior to when you have
> enough information to meaningfully do so, and for returning parsed
> values in spirit, this is neither at closure contstruction time nor at
> rule/grammar invocation time.
> 
> I have the impression that spirit either forces you to do exactly that
> or else use actions, which is even more messy.
> 
> Am I correct in that observation?

I'm sorry, you've lost me completely. Well, not completely, I may have
a hint. But I'm not sure I fully understand you. Can you explain a bit
more?

Regards,
-- 
Joel de Guzman
http://www.boost-consulting.com
http://spirit.sf.net