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<p>Hi Juan, I'm attaching 2 squeak source files, one with 2 methods
in compatibility and the other the source.st out of my latest
PromisesLocal-rabbt.66,mcz. <br/>
</p>
<p>I got the Vat's eventual process working (issues with terminate),
<br/>
</p>
<p>but I'm blowing up on a call to #becomeForward:, from
ENearPromise>>#becomeContext:, when resolving a promise.
Here is an image of the resulting debugger. Is there more
information I could provide or is someone willing to attempt to
reproduce? Many thanks! ❤️🔥🐰</p>
<p><img src="cid:part1.z4bBE9q0.CONMYlxu@callistohouse.org" alt=""/></p>
<div class="moz-cite-prefix">On 6/23/23 20:50, rabbit via Cuis-dev
wrote:<br/>
</div>
<blockquote type="cite" cite="mid:KA4Bp9wVUoV3KqzkgmedY8AfqiuVWyAsqtFjqA3p3nFPV03u_gU9F9w0Tu8jU8YYkqulDT6brELYF8oc7RqrIt6dIvMcYNOaSgJ-U28utUo=@callistohouse.org">
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<div dir="auto">Ahh! Thanks for the reminder. That’s how I started
loading code a month ago or whenever I was loading mczs. I’ll
look into it tomorrow.</div>
<div dir="auto"><br/>
</div>
<div dir="auto">Is it possible to get Monticello pkg loading
working again? That’d be very good.<caret></caret></div>
<div dir="auto"><br/>
</div>
<div dir="auto">What’s my go to solution for code packaging in
Cuis? I’d like to establish Crypto in Cuis.</div>
<div><br/>
</div>
<div class="protonmail_signature_block" id="protonmail_signature_block">
<div>❤️🔥🐰</div>
</div>
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On Fri, Jun 23, 2023 at 19:21, Juan Vuletich via Cuis-dev <<a class="" href="mailto:On Fri, Jun 23, 2023 at 19:21, Juan
Vuletich via Cuis-dev <<a href=" moz-do-not-send="true">cuis-dev@lists.cuis.st</a>>
wrote:
<blockquote type="cite" class="protonmail_quote"> Hi rabbit,<br/>
<br/>
I suggest unzipping the Monticello files to extract the code in
plain text (yes, Monticello files are just zip files). When you
are there, you can also fix the line ending convention of the
files. And of course, you'd neet to check the code, because Cuis
is not 100% compatible with Squeak.<br/>
<br/>
We don't use Monticello in Cuis. At some point in the past it
was possible to open MC files in Cuis, but nobody used that
feature in ages and it got bitrotten.<br/>
<br/>
Thanks,<br/>
<br/>
On 6/23/2023 4:00 PM, rabbit via Cuis-dev wrote:
<blockquote type="cite">
<p>I just realized I have been working in squeak. I updated
PromisesLocal-rabbt.66.mcz and am attaching it. I am getting
the error below when I 'browse code' or 'install Mionticello
package'. I do not know. How can I load Monticello packages?
Any way to get the Installer available in cuis? Install
Monticello config maps?<br/>
</p>
<p>I appreciate you,<br/>
rabbit</p>
<p><img alt="" src="imap://rabbit%40callistohouse%2Eorg@127.0.0.1:1143/fetch%3EUID%3E/INBOX%3E2607?header=quotebody&part=1.1.2&filename=part1.06000006.00060206@cuis.st" class="loading-internal" width="862" height="398"/></p>
<p><br/>
</p>
<div class="moz-cite-prefix">On 6/22/23 16:21, rabbit via
Cuis-dev wrote:<br/>
</div>
<blockquote type="cite">
<p>Hey! I got inspired by your proposal, Luciano, and here's
my solution in eventual promises. Code can be loaded as:</p>
<blockquote>
<p>Installer ss project: 'Cryptography'; install:
'ProCrypto.release.3'.<br/>
</p>
</blockquote>
<p>I added a test method <br/>
</p>
<blockquote>
<p>RefsTest>>#testMultiReturns<br/>
<br/>
| selectCount unionFlag pair |<br/>
unionFlag := false.<br/>
selectCount := 0.<br/>
((pair := self promiseResolverPair) key xgcd: 9) <br/>
<<* [:each | selectCount := selectCount + 1.
Transcript cr; show: 'each = ', each];<br/>
<<* [:g :s :t | unionFlag := true. Transcript cr;
show: 'g = ', g, '; s = ', s, '; t = ', t. g + s + t].<br/>
pair value resolve: 21.<br/>
(Delay forMilliseconds: 333) wait.<br/>
self assert: (selectCount == 3).<br/>
self assert: (unionFlag).</p>
</blockquote>
<p>This calls new multireturn #xgcd: method</p>
<blockquote>
<p>xgcd: anInteger<br/>
" 21 xgcd: 9"<br/>
| g s t |<br/>
g := self gcd: anInteger.<br/>
s := self / g.<br/>
t := anInteger / g.<br/>
^ { g. s. t}<br/>
</p>
</blockquote>
<p>And in the test method there are eventual sends
(#<<*) to the promise of the #xgcd: send once the
reciever promise is resolved to 21. This implementation
detects cardinality of the continuation block and sends
#whenResolved: appropriately, for future evaluation.</p>
<blockquote>
<p>Object>>#<<* continuation<br/>
<br/>
(continuation numArgs == 1)<br/>
ifTrue: [^ self whenResolved: [:result | result do:
[:each | continuation value: each]]].<br/>
^ self whenResolved: [:result | continuation
valueWithArguments: result].</p>
</blockquote>
<p>One can see a 1 cardinality schedules the continuation to
evaluate with each result, while a continuation with
cardinality 2 or more will be scheduled to receive all
results. #valueWithArguments:</p>
<p>Here are 2 return handlers, <br/>
</p>
<blockquote>
<p>promise := ((pair := self promiseResolverPair) key
xgcd: 9).</p>
</blockquote>
<p>the first for each argument <br/>
</p>
<blockquote>
<p>promise <<* [:each | selectCount := selectCount +
1. Transcript cr; show: 'each = ', each];</p>
</blockquote>
<p>and the second for all three arguments.</p>
<blockquote>
<p>promise <<* [:g :s :t | unionFlag := true.
Transcript cr; show: 'g = ', g, '; s = ', s, '; t = ',
t. g + s + t].</p>
</blockquote>
<pre cols="72" class="moz-signature">--
❤️🔥🐰
</pre>
<div class="moz-cite-prefix">On 6/21/23 09:44, Luciano
Notarfrancesco via Cuis-dev wrote:<br/>
</div>
<blockquote type="cite">
<div dir="auto">Interesting, thanks for sharing!</div>
<div dir="auto">Actually I think it’s the same thing I
did, my implementation calls
BlockClosure>>#valueWithPossibleArgs: and takes
only as many arguments as needed by the block but the
array can be bigger than that (it should be named
#valueWithPossibleArguments: tho, abbreviations are
ugly).</div>
<div dir="auto"><br/>
</div>
<div><br/>
<div class="gmail_quote">
<div class="gmail_attr" dir="ltr">On Wed, 21 Jun 2023
at 15:37 Christian Haider via Cuis-dev <<a class="moz-txt-link-freetext" href="mailto:cuis-dev@lists.cuis.st" moz-do-not-send="true">cuis-dev@lists.cuis.st</a>>
wrote:<br/>
</div>
<blockquote style="margin: 0px 0px 0px 0.8ex;
border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;" class="gmail_quote">
<div style="" lang="DE">
<div class="m_-976565113171439616WordSection1">
<p class="MsoNormal"><span lang="EN-CA">I added
something similar to my Values package (VW
and ports).</span></p>
<p class="MsoNormal"><span lang="EN-CA">The
source is</span></p>
<p style="margin-left: 35.4pt;" class="MsoNormal"><span style="font-family:
"Courier New";" lang="EN-CA">SequenceableCollection>>asArgumentsIn:
aBlock</span></p>
<p style="margin-left: 35.4pt;" class="MsoNormal"><span style="font-family:
"Courier New";" lang="EN-CA">
"Evaluate aBlock with the receiver's
elements as parameters.</span></p>
<p style="margin-left: 35.4pt;" class="MsoNormal"><span style="font-family:
"Courier New";" lang="EN-CA">
aBlock takes its arguments from the
receiver.</span></p>
<p style="margin-left: 35.4pt;" class="MsoNormal"><span style="font-family:
"Courier New";" lang="EN-CA"> 'ok'</span></p>
<p style="margin-left: 35.4pt;" class="MsoNormal"><span style="font-family:
"Courier New";" lang="EN-CA"> #(1
2 3) asArgumentsIn: [:a :b :c | a + b + c]</span></p>
<p style="margin-left: 35.4pt;" class="MsoNormal"><span style="font-family:
"Courier New";" lang="EN-CA"> #(1
2 3) asArgumentsIn: [:a :b | a + b]</span></p>
<p style="margin-left: 35.4pt;" class="MsoNormal"><span style="font-family:
"Courier New";" lang="EN-CA"> #(1
2 3) asArgumentsIn: [:a | a]</span></p>
<p style="margin-left: 35.4pt;" class="MsoNormal"><span style="font-family:
"Courier New";" lang="EN-CA"> #(1
2 3) asArgumentsIn: [42]</span></p>
<p style="margin-left: 35.4pt;" class="MsoNormal"><span style="font-family:
"Courier New";" lang="EN-CA"> 'not
ok'</span></p>
<p style="margin-left: 35.4pt;" class="MsoNormal"><span style="font-family:
"Courier New";" lang="EN-CA"> #(1
2 3) asArgumentsIn: [:a :b :c :d | a + b + c
+ d]</span></p>
<p style="margin-left: 35.4pt;" class="MsoNormal"><span style="font-family:
"Courier New";" lang="EN-CA"> "</span></p>
<p style="margin-left: 35.4pt;" class="MsoNormal"><span style="font-family:
"Courier New";" lang="EN-CA"> </span></p>
<p style="margin-left: 35.4pt;" class="MsoNormal"><span style="font-family:
"Courier New";" lang="EN-CA">
^aBlock cullWithArguments: self asArray</span><span lang="EN-CA"></span></p>
<p class="MsoNormal"><span lang="EN-CA"> </span></p>
<p class="MsoNormal"><span lang="EN-CA">The
difference is that it takes a list of any
size and picks out the first items and binds
them to the variables.</span></p>
<p class="MsoNormal"><span lang="EN-CA">I use it
often for CSV processing like</span></p>
<p class="MsoNormal"><span lang="EN-CA"> </span><span style="" lang="EN-CA">(line tokensBasedOn:
$;) asArgumentsIn: [:first :second :y | … ].</span></p>
<p class="MsoNormal"><span lang="EN-CA"> </span></p>
<p class="MsoNormal"><span lang="EN-CA">I am
just a bit unhappy with the name – it is too
long. It reads ok though.</span></p>
<p class="MsoNormal"><span lang="EN-CA">The pipe
character is an interesting idea. I have to
think about it.</span></p>
<p class="MsoNormal"><span lang="EN-CA"> </span></p>
<p class="MsoNormal"><span lang="EN-CA">I am use
it for a while now and I am very happy with
it.</span></p>
<p class="MsoNormal"><span lang="EN-CA"> </span></p>
<p class="MsoNormal"><span lang="EN-CA">Happy
hacking,</span></p>
<p class="MsoNormal"><span>Christian</span></p>
</div>
</div>
<div style="" lang="DE">
<div class="m_-976565113171439616WordSection1">
<p class="MsoNormal"><span> </span></p>
<p class="MsoNormal"><span> </span></p>
<div style="border-width: 1pt medium medium;
border-style: solid none none; padding: 3pt
0cm 0cm; border-color: rgb(225, 225, 225)
currentcolor currentcolor;">
<p class="MsoNormal"><b>Von:</b> Cuis-dev <<a class="moz-txt-link-freetext" target="_blank" href="mailto:cuis-dev-bounces@lists.cuis.st" moz-do-not-send="true">cuis-dev-bounces@lists.cuis.st</a>>
<b>Im Auftrag von </b>Luciano
Notarfrancesco via Cuis-dev<br/>
<b>Gesendet:</b> Mittwoch, 21. Juni 2023
15:13<br/>
<b>An:</b> Discussion of Cuis Smalltalk <<a class="moz-txt-link-freetext" target="_blank" href="mailto:cuis-dev@lists.cuis.st" moz-do-not-send="true">cuis-dev@lists.cuis.st</a>><br/>
<b>Cc:</b> Luciano Notarfrancesco <<a class="moz-txt-link-freetext" target="_blank" href="mailto:luchiano@gmail.com" moz-do-not-send="true">luchiano@gmail.com</a>><br/>
<b>Betreff:</b> [Cuis-dev] Methods that
return multiple values</p>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Smalltalk doesn’t have a
convention for methods returning multiple
values, and I’m not aware of any
implementation.</p>
<div>
<p class="MsoNormal">An example of such thing
is the extended gcd: ‘a xgcd: b’ returns g,
s, t where g is the gcd, and as + bt = g.
Writing methods that return multiple values
is easy with the curly brackets syntax,
Integer>>#xgcd: ends with something
like</p>
</div>
<div>
<p class="MsoNormal"> ^ {g. s. t}</p>
</div>
<div>
<p class="MsoNormal">But using sending
messages that return multiple values is kind
of annoying, I end up doing something like:</p>
</div>
<div>
<p class="MsoNormal"> xgcd := a xgcd: b.</p>
</div>
<div>
<p class="MsoNormal"> g := xgcd at: 1.</p>
</div>
<div>
<p class="MsoNormal"> s := xgcd at: 2.</p>
</div>
<div>
<p class="MsoNormal"> t := xgcd at: 3</p>
</div>
<div>
<p class="MsoNormal">Some years ago I thought
about using blocks for this, but I never
tried it. Today I just did a little
experiment implementing anArray | aBlock as
‘^ aBlock valueWithPossibleArgs: self’ and I
can do:</p>
</div>
<div>
<p class="MsoNormal"> (a xgcd: b) | [:g :s :t|
… ]</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">This is seems quite nice
already, I guess I’ll start using it and see
how it feels. But the point of this mail is
not to show a solution, but to ask if anyone
have thought about this or if they know any
nicer solutions. Any ideas?</p>
</div>
</div>
</div>
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</blockquote>
</div>
</div>
</blockquote>
</blockquote>
<pre cols="72" class="moz-signature">--
❤️🔥🐰</pre>
</blockquote>
<br/>
<br/>
<pre cols="72" class="moz-signature">--
Juan Vuletich
cuis.st
github.com/jvuletich
researchgate.net/profile/Juan-Vuletich
independent.academia.edu/JuanVuletich
patents.justia.com/inventor/juan-manuel-vuletich
linkedin.com/in/juan-vuletich-75611b3
twitter.com/JuanVuletich</pre>
</blockquote>
</blockquote>
<pre class="moz-signature" cols="72">--
❤️🔥🐰</pre>
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