What good is Notification (was: Re: [squeak-dev] The Trunk: ToolBuilder-Kernel-cmm.52.mcz)

Frank Shearar frank.shearar at gmail.com
Fri Oct 21 08:46:53 UTC 2011

On 21 October 2011 07:52, Tobias Pape <Das.Linux at gmx.de> wrote:
> Am 2011-10-21 um 01:22 schrieb Levente Uzonyi:
>>> Which leads me right back to my question:  If I have to look at each
>>> kind of Notification to see how it works, then someone please tell me
>>> what type of exception is this "organizing superclass" organizing?
>>> There should be some commonality to all of its subclasses, what is it?
>> Maybe it's worth separating the Notifications which just provide some information and can simply be resumed from those which are used for communication across the stack.
> Among these ‘communication notifications’ is the Seaside WADynamicVariable,
> wich leads me to the impression, that—since there are now Thread-local based
> dynamic variables in trunk—communication notifications can be re-modeled
> to be actual dynamic variables (which some of them seem to be)

I started looking into the interplay between DynamicVariable and my
work on partial continuations. From a theoretical standpoint they
should interact badly [1] but maybe the implementation of
DynamicVariable actually corresponds to Kiselyov's "DB+DC". As I say,
I haven't devoted the time to find out, even though it's an issue
close to my heart.

[1] http://okmij.org/ftp/Computation/dynamic-binding.html


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