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Subject: Re: [boost] [Review] Phoenix review starts today, September 21st
From: Eric Niebler (eric_at_[hidden])
Date: 2008-09-23 11:58:34

dan marsden wrote:
> Joel de Guzman wrote:
>> Mathias Gaunard wrote:
>>> Joel de Guzman wrote:
>>> Isn't the move to first-class Boost citizen a good opportunity to change
>>> some parts of the interface, and thus give a new version number?
>> Indeed. As noted in the review blurb, V3 will be the future of phoenix.
>> The V3 interface will be assumed. The most major interface shifts are:
>> 1) ET engine: Use of Boost.Proto
>> 2) Result type deduction: Use of Boost.Typeof
>> 3) Type deduction protocol: Use of Boost.Resultof
>> As far as the interface goes, we can take all that for granted.
>> We have the proof of concept.
> I think I'd add to your list of major interface shifts:
> 4) Extension protocol: The current extension approach is tightly coupled
> to the hand rolled expression templates, and will need changing for a
> proto based v3, unless if I've missed yet more genius from Eric?

I'm not that smart. ;-) I haven't yet thought about v3's extension
protocol. Extending Phoenix may require some Proto hacking, but it's
possible that Phoenix could provide a high-level extension interface
that hooks Proto behind the scenes. Not sure yet.

Eric Niebler
BoostPro Computing

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