Re: [boost] [Proto] Review

From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2008-03-31 22:22:33

AMDG

Eric Niebler wrote:
> Steven Watanabe wrote:
>   
>> AMDG
>>
>> Eric Niebler wrote:
>>     
>>> 5) You can override an expression's domain with 
>>> "proto::as_expr<Domain>(expr)". This gives a way to mix expressions from 
>>> different domains in the same expression.
>>>       
>> I'm not sure that's enough.  I can imagine wanting one domain
>> to treat expressions in another domain as terminals.  Specifically,
>> I am thinking of using lambda in another domain that expects
>> function objects.
>>     
>
> Could you show some pseudo-code for your DSEL? What support from Proto 
> do you think you'll need?
>   

Sorry.  I should have said that I can see the possibility of using lambda...
It may be sufficient to wrap such expressions in lit().  (Is there any 
issue with
putting an expr in a terminal?)  I'll try to think of something more 
concrete.

In Christ,
Steven Watanabe