From: Michael Neumann <mneumann@...>
Date: 2005-01-14T09:51:00+09:00
Subject: Re: [ANN] Nemo 0.1.0 + Wee 0.4.0

itsme213 wrote:
> "Michael Neumann" <mneumann@ntecs.de> wrote
> 
> 
>>>Are you recommending that continuations not be used? due to gc issues?
> 
> other
> 
>>>reasons?
>>
>>Exactly!
> 
> 
> Is the only alternative an explicit request/response style, or is there some
> other way you discovered to get a "straight-line code" style even without
> continuations?

Everything Wee currently supports works without continuations, except 
what I describe below.

I'm not sure whether it is possible to implement the live-updates 
without continuations as I've not yet gave this a thought. But there's 
no problem to register a direct-handler of a component, which gets 
called by a URL directly (not traversing the components tree) and which 
  returns a response. That should be super easy.

> How about the browser-back button? Works without continuations?

Works without continuations. The only thing continuations are currently 
used for is:

   der render
     r.anchor.callback { do_something }.with('click here')
   end

   def do_something
     if call(ConfirmDialog.new('Really Quit?'))
       call InformDialog.new('Bye bye')
     else
       call InformDialog.new('Continue working')
     end
   end

Without continuations, you have to write:

   def do_something
     call(ConfirmDialog.new('Really Quit?'), :confirm)
   end

   def confirm(quit)
     if quit
       call InformDialog.new('Bye bye')
     else
       call InformDialog.new('Continue working')
     end
   end

This example above is just fine without continations, but image a more 
complex example.

> And what features from IOWA do you miss in Wee?

Well, I'm not missing anything in Wee ;-)
But I could need some support, especially writing components.
Wee's model is a bit more expensive I guess, but on the other hand, IOWA 
could profit from Wee's clean model. And Wee could profit from IOWA, if 
there are more people using it ;-)

Regards,

   Michael