Re: [boost] [1.47] New libraries

Subject: Re: [boost] [1.47] New libraries
From: Hartmut Kaiser (hartmut.kaiser_at_[hidden])
Date: 2011-03-17 08:39:26

> > Bind should not be touched. People rely on Bind esp. those using old
> > compilers. Also, Bind is extremely lightweight with almost zero
> > dependencies. Phoenix cannot get anywhere near that.
> 
> Joel is right. The best we can do is make phoenix::bind a drop-in
> replacement and let people choose.

I second that. OTOH, the migration strategy for Phoenix V2 -> V3 needs to be
defined carefully to minimize disruptions.

> OTOH, it would be very nice if Bind's placeholders were the same as
> Phoenix's. So it would be worth taking the time to see if we could
> refactor Proto such that terminals could be defined in a very light-weight
> way. But I also know that Bind jumps through hoops of fire with the
> placeholder definitions to support ancient compilers, so this might not be
> possible.
> 
> However, if it /were/ possible (and we navigate the tricky proto-domain
> waters), then I suggestion the placeholders be spun into their own mini-
> library that can be shared across all the EDSLs in Boost that require
> placeholders. (Except MPL, where the placeholders are types and not
> objects.)

AFAIR, boost::bind placeholders can already be used out of the box with
Phoenix V3. Thomas?

Regards Hartmut
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