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Fuel fails in squeak
by henry Aug. 14, 2017

Aug. 14, 2017

I loaded the latest Fuel from squeak source and it fails when materializing a Character from a FixedObjectCluster. Character class does not support basicNew. Helpful>?? - HH

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Serializers/Encoders
by henry Aug. 14, 2017

Aug. 14, 2017

I find I do not necessarily have a specific question regarding a specific implementations, but a higher-level question of feasible solution. I need substitutable, type-relevant JSON encoding, perhaps based upon JSON Schemas. I am looking at ASN1Modules & types, Fuel clusterings/substitutions and NeoJSON clusters & mappers. Is it feasible to bring all these together? I would use ASN1Types, Fuel graph walking/substitutions and NeoJSON encoding and cluster hooks. Fuel also has Clusters but I see that Fuel encodes these clusters in each encoding. I am torn about this philosophically: good to have self-describing data encoding, but not suitable for JSON, unless just a type-name extension. Lightweight & robust descriptions? Well, this is all Fuel cluster specs within the encoding really is: a type-specification. The aspect of NeoJSON that has me wondering is the lack of polymorphism in type-spec lookup and recursive substitution. This is where Fuel shines, I feel. So what is the vision of the end state encoder? Use ASN1 Types as cluster descriptors, Fuel proxification on materializations and NeoJSON encoding and mappers. Would you have for me guidances in this area? - HH

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Fwd: [squeak-dev] Anybody using Orca Smalltalk to JavaScript?
by H. Hirzel Aug. 14, 2017

Aug. 14, 2017

---------- Forwarded message ---------- From: Robert Hirschfeld <robert.hirschfeld(a)gmx.net> Date: Mon, 14 Aug 2017 12:06:45 +0200 Subject: Re: [squeak-dev] [Pharo-dev] Anybody using Orca Smalltalk to JavaScript? To: The general-purpose Squeak developers list <squeak-dev(a)lists.squeakfoundation.org> http://www.hpi.uni-potsdam.de/swa/publications/media/ThamsenGulenkoPerschei… > On 14 Aug 2017, at 11:02, H. Hirzel <hannes.hirzel(a)gmail.com> wrote: > > On 8/14/17, Frank-B <frank.berger.software(a)web.de> wrote: > [snip] >> There are currently three "candidates": ST2JS, Orca and PharoJS. >> >> As you can read in the second thread (see link above) the PharoJS image >> failed at first attempt. Therefore my question, are you aware of a working >> image? >> >> Second, is there anywhere some detailed information available about what >> PharoJS does and, at least basically, how it's done? (Side-remark: This >> part >> is excellent for Orca, I recommend the Orca papers. Brilliant concepts!) >> > > Hello Frank > > A question: you wrote earlier about an 'excellent' Orca documentation? > Where did you find it? > > http://www.hpi.uni-potsdam.de/hirschfeld/projects/orca/index.html > has a demo video and installation instructions for server (Squeak) > and client (JavaScript) > > Or is it this paper [1] you are referring to? > > Regards > Hannes > > [1] > http://squeak.org/research/ > > Lauritz Thamsen, Anton Gulenko, Michael Perscheid, Robert Krahn, > Robert Hirschfeld, and David A. Thomas. âOrca: A Single-Language Web > Framework for Collaborative Development.â In Proceedings of the > Conference on Creating, Connecting and Collaborating through Computing > (C5) 2012, 45â52. IEEE, 2012. >

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[Pharo 7] Build 34 - Issue 20301 loading of BaselineOfIDE must not resolve conflicts automatically
by Guillermo Polito Aug. 14, 2017

Aug. 14, 2017

Build 34 https://pharo.fogbugz.com/f/cases/close/20301/loading-of-BaselineOfIDE-must… https://github.com/pharo-project/pharo/pull/190#pullrequestreview-56020044 -- Guille Polito Research Engineer French National Center for Scientific Research - *http://www.cnrs.fr* <http://www.cnrs.fr> *Web:* *http://guillep.github.io* <http://guillep.github.io> *Phone: *+33 06 52 70 66 13

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Re: [Pharo-dev] Anybody using Orca Smalltalk to JavaScript?
by Stephan Eggermont Aug. 13, 2017

Aug. 13, 2017

Frank wrote: > I feel sorry for you if you really have not yet understood that proper, early and complete documentation and comments ARE ONLY an investment in the code, because they save time and efforts later on, which always pay back - mostly multiple times. Perhaps you might want to explain to me the return on investment of the Orca documentation then? Zero users, zero return on investment. I feel annoyed if you talk in absolutes like that, because I know that there are lots of situations where creating documentation is a waste of effort. And I have also been bitten by lack of documentation. And I have even been in a situation where both happened at the same time, where a lot of effort was put in creating the wrong kind of documentation. Oh, and I even wrote a bit of documentation myself. I have been thought many things at university, and there were many more things I had to learn in industry. And from open source projects, which have other things to teach. Investing means making decisions. Fully documented non-working code has no value. Working code that no-one can use neither. Your current communication is manipulative: you try to put yourself in a dominant position by using absolutes, saying you feel sorry for me, and bragging about your experience. That annoys me. If you want to convince me, use arguments. Stephan https://en.m.wikipedia.org/wiki/Nonviolent_Communication

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Re: [Pharo-dev] eventual crashes pharo vm
by henry Aug. 13, 2017

Aug. 13, 2017

Re-adding the list in case others were interested. - HH > -------- Original Message -------- > Subject: Re: [Pharo-dev] eventual crashes pharo vm > Local Time: August 13, 2017 3:59 PM > UTC Time: August 13, 2017 7:59 PM > From: henry(a)callistohouse.club > To: Stephane Ducasse <stepharo.self(a)gmail.com> > > Stef, please see version 4 and the test in RefIdentityTest. > > - HH > >> -------- Original Message -------- >> Subject: Re: [Pharo-dev] eventual crashes pharo vm >> Local Time: August 13, 2017 3:09 PM >> UTC Time: August 13, 2017 7:09 PM >> From: stepharo.self(a)gmail.com >> To: henry <henry(a)callistohouse.club> >> >> Does he do it systematically? >> I was checking if they extend blockcontext or others. >> Because it would be really nice. >> >> Stef >> >> On Sun, Aug 13, 2017 at 9:06 PM, henry <henry(a)callistohouse.club> wrote: >>> Sorry, loading works fine. It segfaults on Ubuntu 32-bit when I run the test >>> cases. >>> >>> - HH >>> >>> >>> -------- Original Message -------- >>> Subject: Re: [Pharo-dev] eventual crashes pharo vm >>> Local Time: August 13, 2017 2:58 PM >>> UTC Time: August 13, 2017 6:58 PM >>> From: stepharo.self(a)gmail.com >>> To: henry <henry(a)callistohouse.club>, Pharo Development List >>> <pharo-dev(a)lists.pharo.org> >>> >>> We have some instability with the VM. Now can you tell us more how it "blew >>> up"? >>> I browsed the code and nothing special jump to my eyes. >>> >>> Stef >>> >>> On Sun, Aug 13, 2017 at 2:08 PM, henry <henry(a)callistohouse.club> wrote: >>>> Hi all. I was testing with this eventual_test package and it blows up the >>>> pharo 6.1 vm. I"d welcome pointers >>>> >>>> http://www.squeaksource.com/TurquoiseTesting.html >>>> >>>> - HH >>>> >>>> >>> >>>

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Re: [Pharo-dev] Anybody using Orca Smalltalk to JavaScript?
by Stephan Eggermont Aug. 13, 2017

Aug. 13, 2017

Hi Frank, It must be very frustrating to see so many possibly interesting projects that are so difficult to get started with, being it because of lack of development and migration to the latest versions, or because of lack of documentation. It is a feeling I, and no doubt a lot of other smalltalkers, share. Our open source community consist of people spending a lot of their time on Pharo. A few of them are paid to do so, some more make it their bachelor, master or PhD project, and for even more it is just a hobby or side project. They all have different objectives with their projects, and different constraints. To get good results with our community, effective communications is essential. That allows us to develop multiple projects in a way that creates synergy, and a coherent whole. I find a crucial element of effective communication is to build up a connection, so others are able to hear your message. Your first message in this thread is excellent. Telling people they are not professional, and do a bad job, without knowing about the context in which the code was produced, is unlikely to lead to effective communications. People who feel attacked are no longer open to your message, irrespective of the contents. Effective communications has also nothing to do with PC or 'truth', and especially not the absolute and blaming kind. Posing opinions as truths looks less than helpful to me. I find clearly separating facts, feelings, needs, and strategies to fulfill those needs more effective. Creating documentation takes time and effort. That needs to be balanced against other priorities. You might not like the priorities others set, but you are not paying (in money nor effort). Also, we can only start at the position we are now in, no matter how much we want to be somewhere else. This is open source, so please let us know where you want to contribute so we can help you getting started. Stephan

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PharoDays17: Bloc video - displaying metrics while prototyping
by Ben Coman Aug. 13, 2017

Aug. 13, 2017

I was watching PharoDays17: Bloc video and @53:15 there was a question due to offset being negative... https://youtu.be/ikzkzfz0zAA?t=3197 ...and I had a random idea (so not necessarily practical) that since we have "metrics" as an object, I wonder if a built in feature to draw these metrics on the canvas - kind of a developer guidelines to be used temporarily during prototyping. Something like... metrics red drawOn: aCanvas which would be commented out of production code. Now what I'm really interested in is a zoomable image window, preferably using the mouse wheel. Any chance such example if available somewhere? cheers -ben

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Orca versus PharoJS
by Frank Berger Software Aug. 13, 2017

Aug. 13, 2017

@Serge Merci beaucoup for the recommendation but I had looked at the PharoJS page a few times before and I had not touched it, simply because it's the usual thing that there is absolutely no meaningful information, description, features list etc available. The slides don't really tell anything either and the FAQ mainly tells where to get cups and shirts (ok that was nasty). There are so many merely academic pseudo-solutions especially in the Squeak and Pharo area, most of which have never really made it to production state, that over the years I have become extremely sceptical. It's a great pity in my eyes, because there are definitely many very bright people engaged there and here. Unfortunately, many if not most Smalltalkers are very far away in their perception and thinking from the end-users. The Orca docs are just the total opposite, they are very detailed, extremely professional and very convincing. But I don't know yet about the code behind and because of that I will now give PharoJS a try and look at it.

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Is there a portable way to check if a string is a block?
by Mariano Martinez Peck Aug. 13, 2017

Aug. 13, 2017

Hi guys, Is there a portable (that would work in GemStone too) and safe way to know if a String would be a block? I must support this kind of strings: 'singleString' -> false 'multi string' -> false ' [:a | 42]' -> true ' '' '' [:a | 42]' -> true '[:a | 42]' -> true ' "a commet" [:a | 42]' -> true ' WhateverClass someVeryBadHackishMethod. [:a | 42]' -> true I need to identify whether the string is a closure or not. And ideally, I don't want to do an #evaluate: because I don't want any left hand code to be executed. I tried with #parse: why I am having problems. Any ideas? Thanks in advance -- Mariano http://marianopeck.wordpress.com

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