Proto for Boost mailing list page: Re: [proto] Extendin proto::switch_

Subject: Re: [proto] Extendin proto::switch_
From: Eric Niebler (eric_at_[hidden])
Date: 2011-08-06 02:10:12

On 8/5/2011 10:55 PM, Joel falcou wrote:
> On 06/08/11 07:30, Eric Niebler wrote:
>> That wouldn't be enough because proto::matches "knows" about
>> proto::switch_. It would be easy enough to extend proto::switch_ to take
>> an optional mpl metafunction that accepts and expression and returns a
>> type to dispatch on. It would default to proto::tag_of<mpl::_>. Or for
>> the sake of consistency with the rest of proto, it should probably be a
>> transform, in which case it would default to proto::tag_of<proto::_>().
> 
> OK
> 
>> Could you open a feature request?
> 
> Well, we wanted to know the correct road, i have someone to do it, so
> let's say we'll provide you with a patch request instead ;)

Even better. :-)

-- 
Eric Niebler
BoostPro Computing
http://www.boostpro.com