Continuations are also bad because they leave Mutex's in their wait
state.  That, alone, is a show-stopper for me for using continuations.

On Wed, Jan 15, 2014 at 10:14 AM, Frank Shearar <frank.shearar at gmail.com> wrote:
> Yes, I know. But that just means that implementing a bad idea (modal
> dialogs) with some random piece of tech (continuations) is a bad idea.
>
> I thought you meant that continuations _implied_ something negative
> about UI design by their very nature. But it sounds like that's not
> what you meant. Which is good :).
>
> frank
>
> On 15 January 2014 15:56, Chris Muller <asqueaker at gmail.com> wrote:
>> Frank, by my limited knowledge, the call: / answer API of Seaside used
>> a Continuation to allow a modal component to be rendered on top of
>> other components until #answer: is sent by one of the callbacks.  That
>> provides stateless web-apps the ability to do desktop-like modal
>> "dialog" boxes that can return values to the calling component.
>>
>> On Wed, Jan 15, 2014 at 2:34 AM, Frank Shearar <frank.shearar at gmail.com> wrote:
>>> On 15 January 2014 03:10, Chris Muller <asqueaker at gmail.com> wrote:
>>>>>> On 14-01-2014, at 5:17 PM, Colin Putney <colin at wiresong.com> wrote:
>>>>>> > Meh. Don't worry about it. Seaside is obsolete anyway.
>>>>>>
>>>>>> Really? I haven’t taken any interest in web development in ages; what’s
>>>>>> the replacement for Seaside?
>>>>>
>>>>>
>>>>> It's not that there's a replacement. It's more that the problem it solves
>>>>> isn't a problem anymore.  Continuations were a brilliant way to manage apps
>>>>> that were basically dynamically generated web pages connected via links and
>>>>> forms. But Javascript runtimes have gotten way, way faster, more robust and
>>>>> more standardized in the last 10 years.  Modern web apps are more of a
>>>>> client-server model: the UI rendering and interface logic is all done in
>>>>> Javascript running in the browser, and it communicates with the server by
>>>>> shuttling JSON back and forth over HTTP. In that sort of a system,
>>>>> continuations don't provide any benefit, and the drawbacks start to become
>>>>> significant.
>>>>
>>>> Continuations were never good for UI design anyway.  Modal.
>>>
>>> I don't understand - what does UI modal-ness got to do with with
>>> continuations? (Or: the whole of Squeak is fundamentally built on
>>> continuations (Process, ContextPart).)
>>>
>>> frank
>>>
>>