April 2021 - Pharo-users - lists.pharo.org

EXIF / JPEG metadata
by Alistair Grant Nov. 30, 2025

Nov. 30, 2025

Hi Everyone, As far as I can tell, JPEGReadWriter in Pharo 7 doesn't read (or write) the image metadata, e.g. title, keywords, exposure time, etc. Is anyone aware of a package that does? Thanks! Alistair

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Re: [Pharo-users] Personal wiki / information manager
by Evan Donahue Sept. 25, 2023

Sept. 25, 2023

Seems that Pharo is a magnet for this kind of project. I've been writing one as well and using it to organize my research notes. Does anyone working on personal info mgmt tools want to talk offline? I expect we're running into some of the same issues, both conceptual and technical. Evan

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WebDav and CalDav in Pharo ?
by CÃ©drick BÃ©ler April 13, 2022

April 13, 2022

Hi all, I do some experiments with iCal. For now I serve a full calendar over HTTP. Not bad, but it is read only. Iâd like to try CalDAV. I was looking for it, and also webDAV. Gofer it smalltalkhubUser: 'UdoSchneider' project: 'FileSystemNetwork'; configuration; load. #ConfigurationOfFileSystemNetwork asClass project stableVersion load: 'Webdav' Iâve found the project of Udo, but it doesnât load on P8. I think this is due to the stream refactoring. Right now the image hung. Iâll try maybe to load it manually. But I was wondering oof there were other alternatives ? TIA, CÃ©drick

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grants Master Internship / offres de stage Master
by Pierre Bommel Feb. 10, 2022

Feb. 10, 2022

(sorry for redundancies) Hello, Bonjour, Hola, We are looking for a Master internship to work on Cormas, a simulation platform (https://github.com/cormas/cormas , or see here for our presentation at ESUG: https://hackmd.iscpif.fr/GGwvzBFqRASE5zCzlRwArQ?view) Nous recherchons un stagiaire de Master pour travailler sur Cormas, une plateforme de simulation (https://github.com/cormas/cormas , cf. notre prÃ©sentation Ã ESUG: https://hackmd.iscpif.fr/GGwvzBFqRASE5zCzlRwArQ?view) Estamos buscando un estudiante de MaestrÃa para trabajar en Cormas. Voici l'annonce en franÃ§ais (in English below) : https://www.hdigitag.fr/fr/les-offres-de-stage-digitag/ *Simulation participative de la gestion des ressources renouvelables dans des environnements hybrides* *Mots-clÃ©*: Simulation participative, Computer Vision , Smalltalk, Cormas * *DurÃ©e souhaitÃ©e du stageÂ (nombre de mois):*8 * *Date de dÃ©but du stage*: 1/02/2021 * *UnitÃ© de recherche*: Green, Cirad * *Contact*: Bommel Pierre : bommel(a)cirad.fr * *#DigitAg*: Axe 2 : Innovations en agriculture numÃ©rique, Axe 6 : ModÃ©lisation et simulation (systÃ¨mes de production agricole) / Challenge 1 :Â Le challenge agroÃ©cologique, Challenge 2 :Â Le phÃ©notypage rapide, Challenge 6 :Â La gestion des territoires agricoles, Challenge 7 :Â IntÃ©gration de lâagriculture dans les chaÃ®nes de valeur, Challenge 8 : DÃ©veloppement agricole au Sud Lâambition dâÃ©liminer les interfaces physiques qui permettent lâinteraction avec les machines est une idÃ©e ancienne dans le monde de lâinformatique qui a pris plusieurs directions. La plus emblÃ©matique pour le grand public a Ã©mergÃ© en 2005 sous le nom de âprojet Natalâ repris et dÃ©mocratisÃ© par Microsoft dans sa derniÃ¨re version baptisÃ©e âAzure Kinectâ (2019). Ce capteur dÃ©tecte les mouvements et les objets dans le champ de vision de lâutilisateur pour produire des rÃ©sultats dans un logiciel. Il a Ã©tÃ© abondamment dÃ©tournÃ© et enrichi depuis ses dÃ©buts grand public pour permettre de nouvelles maniÃ¨res dâinteragir avec les machines. Par ailleurs, le groupe de chercheurs Ã lâorigine de la crÃ©ation dâune plateforme de modÃ©lisation Ã base dâagents baptisÃ©e Cormas [1] fait actuellement face Ã des besoins accrus dâinteractivitÃ©s dans les simulations participatives. BasÃ©e sur le langage Smalltalk, Cormas est dÃ©veloppÃ©e depuis la fin des annÃ©es 1990 par une Ã©quipe fortement interdisciplinaire. Au-delÃ des usages traditionnels de la modÃ©lisation agents, Cormas se dÃ©marque des autres plateformes par des processus originaux de modÃ©lisation : lâapproche ComMod (pour Companion Modeling : modÃ©lisation dâaccompagnement [2]), qui vise Ã proposer des outils permettant de participer activement Ã la conception dâun modÃ¨le, mais aussi de sâimmerger dans des situations de jeux interactifs. Le jeu (de plateau ou informatisÃ©) sert alors de support pour Ã©changer sur une situation vÃ©cue. En 2012, pour la premiÃ¨re fois, lâÃ©quipe utilisait un video-projecteur Ã ultra-courte focale pour projeter sur une table un plateau de jeu. Ce simple changement a induit des comportements radicalement diffÃ©rents leur permettant une interaction beaucoup plus naturelle avec les simulations informatisÃ©es. En outre, la configuration spatiale des acteurs favorise les interactions sociales. Mais jusquâÃ aujourdâhui, la saisie manuelle par lâanimateur des dÃ©cisions prises par les joueurs reste nÃ©cessaire ce qui rÃ©duit la fluiditÃ© et la spontanÃ©itÃ© des interactions. LâÃ©quipe en charge du dÃ©veloppement de Cormas souhaite investiguer les possibilitÃ©s offertes par les nouvelles applications liÃ©es Ã la dÃ©tection dâobjets et de mouvements en portant un prototype de simulation participative dans le champ de la simulation hybride entre modÃ¨le informatique et jeu physique. Ce travail de preuve de concept appliquÃ© au modÃ¨le ReHab (modÃ¨le Ã©cole de ComMod) nÃ©cessitera de mettre au point des mÃ©thodes de dÃ©tection fiables dâobjets physiques pour Ãªtre intÃ©grÃ©es dans le calcul du nouvel Ã©tat simulÃ©. Aujourdâhui, Cormas sâappuie sur Pharo (Smalltalk open-source). Cette solution est dÃ©veloppÃ©e par lâINRIA et par un consortium de chercheurs et dâindustriels. La communautÃ© dynamique propose un ensemble de packages permettant de mutualiser le dÃ©veloppement de fonctionnalitÃ©s qui pourraient Ãªtre mobilisÃ©es pour proposer un prototype pour des simulation participative et la dÃ©tection dâobjets *English* : https://www.hdigitag.fr/en/digitag-master2-internship-offers/ *Participatory simulation of renewable resource management in hybrid environments* * *Keywords*: Participatory simulation, Computer Vision , Smalltalk, Cormas * *Duration*: 8 months * *Desired start date*: 1/02/2021 * *Research Unit*: Green, Cirad * *Contact*: Bommel Pierre â bommel(a)cirad.fr * *#DigitAg*: Axe 2,Axe 6 â Challenge 1,Challenge 2 ,Challenge 6 ,Challenge 7, Challenge 8 The ambition to remove the physical interfaces that allow interactions with computers is an old idea in the IT world that took several directions. The most emblematic one for the general public emerged in 2005 under the name of âProject Natalâ taken up and democratized by Microsoft in its latest version called âAzure Kinectâ (2019). This sensor detects movements and objects in the userâs field of vision to produce results in softwares.Â It has been abundantly diverted and enriched since its beginnings for the general public to allow new ways of interacting with computers. In addition, the group of researchers behind the development of an agent-based modeling platform called Cormas [1] is currently facing increased needs for interactivity in participatory simulations. Based on the Smalltalk language, Cormas has been developed since the late 1990s by a highly interdisciplinary team. Beyond the traditional uses of agent modeling, Cormas differs from other platforms by innovative modeling processes: the ComMod approach (Companion Modeling [2]), which aims to provide tools to actively participate in the design of a model, but also to immerse oneself in interactive game situations.Â The game (board or computer game) is then used as a support to exchange on a real-life situation. In 2012, for the first time, the team used an ultra-short focal projector to project a game board on a table. This simple change induced radically different behaviors of the actors allowing them to interact more naturally with computer simulations. In addition, the spatial configuration of the actors favors social interactions.Â But until today, manual input by the facilitator of the decisions taken by the players remains necessary, which reduces the fluidity and spontaneity of interactions. The team in charge of Cormasâ development wishes to investigate the possibilities offered by new opportunities related to the detection of objects and movements by bringing a prototype of participatory simulation in the field of hybrid simulation between computer model and physical game.This proof of concept work applied to the ReHab model (ComModâs school model) will require the development of reliable detection methods for physical objects to be integrated into the calculation of the new simulated state. Today, Cormas relies on Pharo (an open-source Smalltalk).Â This solution is implemented by INRIA and a consortium of researchers and industrialists. The dynamic community proposes a set of packages allowing to mutualize the development of functionalities that could be mobilized to propose a prototype for participative simulation and object detection

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How to flatten traits
by Jupiter Jones Nov. 22, 2021

Nov. 22, 2021

Hi All, There used to be a method to #flattenDownTraits that I canât find the equivalent in Pharo 8. How do you go about flattening traits now? Thanks for any advice. Cheers, J

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Rounding in Floats
by Esteban Maringolo June 17, 2021

June 17, 2021

Hi, Continuing with my issues with decimals, I'm having one issue that is not clear to me why it happens. If I do: (9.1 + (-2.0)) roundTo: 0.1. "7.1000000000000005" I expect to get a single decimal Float (rounded with whatever precision, but a single decimal). Even if I do something like this: 7.1 roundTo: 0.1 It gives the wrong result. In VW and VAST it provides the right result. (9.1 + (-2.0)) roundTo: 0.1 "7.1" In Dolphin it also returns the wrong result, it seems to use the same algorithm to round it. Is this a bug? Esteban A. Maringolo

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We haven't had a design debate in a while - thoughts on CD.buy article...
by Tim Mackinnon May 22, 2021

May 22, 2021

Hi guys - someone pointed out this article from a UK colleague which seems to be causing a flurry of discussion - but I always like the insights of this group. I had an instant reaction when I read it - but curious what people here think in 2021. https://www.linkedin.com/posts/jasongorman_the-year-is-2021-and-people-stil… Tim

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NeoCSVReader and wrong number of fieldAccessors
by jtuchel＠objektfabrik.de May 13, 2021

May 13, 2021

Happy new year to all of you! May 2021 be an increasingly less crazy year than 2020... I have a question that sounds a bit strange, but we have two effects with NeoCSVReader related to wrong definitions of the reader. One effect is that reading a Stream #upToEnd leads to an endless loop, the other is that the Reader produces twice as many objects as there are lines in the file that is being read. In both scenarios, the reason is that the CSV Reader has a wrong number of column definitions. Of course that is my fault: why do I feed a "malformed" CSV file to poor NeoCSVReader? Let me explain: we have a few import interfaces which end users can define using a more or less nice assistant in our Application. The CSV files they upload to our App come from third parties like payment providers, banks and other sources. These change their file structures whenever they feel like it and never tell anybody. So a CSV import that may have been working for years may one day tear a whole web server image down because of a wrong number of fieldAccessors. This is bad on many levels. You can easily try the doubling effect at home: define a working CSV Reader and comment out one of the addField: commands before you use the NeoCSVReader to parse a CSV file. Say your CSV file has 3 lines with 4 columns each. If you remove one of the fieldAccessors, an #upToEnd will yoield an Array of 6 objects rather than 3. I haven't found the reason for the cases where this leads to an endless loop, but at least this one is clear... I *guess* this is due to the way #readEndOfLine is implemented. It seems to not peek forward to the end of the line. I have the gut feeling #peekChar should peek instead of reading the #next character form the input Stream, but #peekChar has too many senders to just go ahead and mess with it ;-) So I wonder if there are any tried approaches to this problem. One thing I might do is not use #upToEnd, but read each line using PositionableStream>>#nextLine and first check each line if the number of separators matches the number of fieldAccessors minus 1 (and go through the hoops of handling separators in quoted fields and such...). Only if that test succeeds, I would then hand a Stream with the whole line to the reader and do a #next. This will, however, mean a lot of extra cycles for large files. Of course I could do this only for some lines, maybe just the first one. Whatever. But somehow I have the feeling I should get an exception telling me the line is not compatible to the Reader's definition or such. Or #readAtEndOrEndOfLine should just walk the line to the end and ignore the rest of the line, returnong an incomplete object.... Maybe I am just missing the right setting or switch? What best practices did you guys come up with for such problems? Thanks in advance, Joachim

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Class hierarchy diagram
by Sanjay Minni May 6, 2021

May 6, 2021

Is there any way to display the Class Hierarchy as a Diagram or a indented list. Even for all the classes in a package will do. ----- cheers, Sanjay -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Creating an SDL (OSWindow) window without showing the pharo interface
by kmo May 3, 2021

May 3, 2021

Does anyone know how to get an OSWindow window to open from Pharo without showing the pharo IDE? I thought the headless VM might do this. So I downloaded the latest headless VM and Pharo 9. Then if I issue the command line / pharo-ui Pharo.image eval OSWindowWorldMorph new open/ I get an SDL window but also the pharo user interface which I don't want. But if I try /pharo Pharo.image --no-quit eval OSWindowWorldMorph new open/ nothing happens. Pharo runs but nothing shows up. I expected just to get the SDL window. Can this be done in pharo? Anyone know the technique? -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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[ANN] Freezing Pharo 9 development right now :)
by Esteban Lorenzano May 3, 2021

May 3, 2021

Hi, So, today I was checking how much it is missing for release and what is our status, and I realized if we do not freeze now, we will never release in a reasonable time. So, even if there are a couple of cleanups and that to still do that should happen before, I will declare that Pharo 9.0 enters in freeze Pharo 9.0 right now (and I will sneak the cleanups anyway, but being more careful). What does this means? No more features, just bugfixes No more fixes of things that can wait until Pharo 10 In two weeks I will open the Pharo 10 development branch, up to then, please help fixing what's missing (which is a lot) ! Have a great weekend, cheers! Esteban

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SQLite3 primitiveFailed after FFI call
by Esteban Maringolo April 30, 2021

April 30, 2021

Hi all, I'm having a strange issue when executing a query with the SQLite3 driver (via GLORP). In: SQLite3Library>>#apiPrepare: dbHandle withSQLText: anSQLText with: textSize with: sHandle with: tail "int sqlite3_prepare_v2(sqlite3*, const char*, int, sqlite3_stmt**, const char **)" ^ self ffiCall: #(int sqlite3_prepare_v2 (sqlite3* dbHandle, String anSQLText, int textSize, sqlite3_stmt** sHandle, const char** tail)) After the FFI call, I get a primitive failed error when some part of the FFI machinery sends instVarAt: index to the undefined object. This is the call stack: PrimitiveFailed(Exception)>>signal PrimitiveFailed class(SelectorException class)>>signalFor: UndefinedObject(ProtoObject)>>primitiveFailed: UndefinedObject(ProtoObject)>>primitiveFailed UndefinedObject(Object)>>instVarAt: SQLite3Library>>apiPrepare:withSQLText:with:with:with: SQLite3Library>>prepare:on:with: SQLite3PreparedStatement>>prepare: SQLite3Connection(SQLite3BaseConnection)>>prepare: SQLite3Connection>>execute:with: SQLite3Driver>>basicExecuteSQLString:binding: SQLite3Driver>>basicExecuteSQLString: PharoDatabaseAccessor>>basicExecuteSQLString: PharoDatabaseAccessor>>executeCommandUnbound: QuerySelectCommand(DatabaseCommand)>>executeUnboundIn: If I run the same query via an external SQL tool (sqlite3) it works, returning a single row with a single value as expected. What's weird is that this doesn't fail always, since it's a very common query in the app. Any ideas? Esteban A. Maringolo

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creating a subclass in system browser
by Sanjay Minni April 29, 2021

April 29, 2021

Hi is there a way I can create a subclass when I have selected a class in the System Browser class list (top 2nd panel). Couldnt see any option - Or is it that no such feature is needed ----- cheers, Sanjay -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Mooc on Advanced OO design looking for interested teachers.
by StÃ©phane Ducasse April 28, 2021

April 28, 2021

Hello Iâm starting to write a Mooc on Advanced OO design. It will be in the same format that the Pharo Mooc. I would like to know if some of you can be interested using part of this mooc in their curriculum. It will help me for a funding agency Iâm applying to. S. -------------------------------------------- StÃ©phane Ducasse http://stephane.ducasse.free.fr / http://www.pharo.org 03 59 35 87 52 Assistant: Aurore Dalle FAX 03 59 57 78 50 TEL 03 59 35 86 16 S. Ducasse - Inria 40, avenue Halley, Parc Scientifique de la Haute Borne, BÃ¢t.A, Park Plaza Villeneuve d'Ascq 59650 France

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Announcements - and whether its bad to check if a subscription would be handled?
by Tim Mackinnon April 27, 2021

April 27, 2021

Hi everyone - Iâve always thought the article on announcements many years ago was very cool - and we donât seem to use them as much as we could (but equally they arenât a panacea to be overused everywhere either - and they do get used in Pharo to some extent). Anyway, Iâve been playing around with CodeParadise (CP is a very cool project, and Erik is very supportive and thinking about how to write web apps a different wayâ¦ Iâm fascinated), And - CP uses announcements as mechanism to send events from the View Client (in a web browser) to a Presenter on the server (which makes total sense). In taking things for a spin, I hit an interesting problem on how in a web component world, you should display a spelling test of words - e.g. SpellingTest â has many â> SpellingWord(s). Initially I bunged it all in a single presenter with its associated view, and it was a bit messy, and Erik guided me down a route (that CP nicely supports) - that my SpellingTest view should have the name/date of the test as well as an add word input field, but the list of current Words (which I had bunged into a table) - were actually more elegant as sub-components - hence a WordView - which renders a single word in a DIV, and for the edit screen I was creating, a Delete button next to the word (so you could delete it). So a 1 to many relationship essentials. This is where the announcements kick in (and lead to my ultimate question). When you click the Delete button, if I use a sub component - my view will generate a DeleteWordAnnouncement - which gets fed to my SpellingWordPresenter - however words in this sense donât naturally know their parent (the SpellingTest) - and its the parent test that has a #deleteWord: method. Iâve been taking with Erik, on different ways to elegantly handle this. a) you could change the model so words know their parent (in my case, Iâm using a 3rd party model for Flashcards, and they just donât know this - and adapting them would be a nuisance b) my TestPresenter could listen to announcements on the WordPresenter - and I could get some communications between presenters (although normally the Presenters just get events from Views, and pure domain models - so it feels a bit abnormal to consider another Presenter as a sort of model - but I could live with this c) given the composable nature of views/presenters (and CP is base on a WebComponent model) - you could bubble up Announcements, so that if an event isnât handled by a viewâs immediate presenter, you could re-route it to the parent of the View (the component owner) and see if itâs presenter could do something. I think (c) has a certain expectation to it - in fact when I converted my initial one-presenter attempt into components, I still had listener code in my TestPresenter that was expecting to get a deleteWord announcement and I was initially surprised that I wasnât getting it (as it was now just going to the Word component I had refactored out). So I wonder if others here would expect things to work this way too (and are there other examples in the wild that lead you here - or scare you away from this?). Back to my Announcement question - if C is a good idea - why doesnât the Announcer class let you check if if will handle a particular announcement? The API has #hasSubscriber: and #hasSubscriberClass: , but its missing: hasSubscriptionsHandling: anAnnouncement "Answer true if I have any subcribers to anAnnouncement" ^(registry subscriptionsHandling: anAnnouncement ) notEmpty And I am wondering if this is because it's a bad thing to expect to be able to check? In my case above, I would want to do this to know if CP should instead try announcing a message to a parent presenter because the current presenter wonât handle it. In my example above, my WordComponentView will broadcast that the delete button was clicked, but its actually a parent view which would reasonably want to listen to this kind of event and process the delete. And in a many words scenario (the Test has many words), its unrealistic for the parent to register to listen to each word component individually (in fact CP sort of hides this from you), however if you could listen to an event in your TestView, it seems to come out quite nicely - and looks a bit like this: viewCreated super viewCreated. self view when: CpNavigationAnnouncement do: [ :action | self model goto: action location ]; when: CpAddWordAnnouncement do: [ :action | self addWord: action data ]; when: CpDeleteWordAnnouncement do: [ :action | self deleteWord: action data ]. <â this is the one Iâm talking about So Iâm curious on the overall thought process here, but in particular whether I should even submit a PR on Announcer for #hasSubscriptionsHandling: ? Tim

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[ANN] Next Pharo Sprint: April 30
by Marcus Denker April 27, 2021

April 27, 2021

Next Pharo Sprint: April 30 We will organize a Pharo sprint / Moose dojo April 30 Goals of this sprint: - Fix issues from tracker https://github.com/pharo-project/pharo/issues - Especially checking older issues This is a Remote Sprint, it happens on Discord. http://pharo.org/contribute-events We have added a Board to coordinate the work: https://github.com/orgs/pharo-project/projects/9 A list of all Pharo Event of the year an be found here: https://association.pharo.org/events

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Re: Tabular for Pharo 9 and Git line ending conventions
by Bernhard Pieber April 26, 2021

April 26, 2021

Actually, it is even worse. All lines in all methods are shown as changed. > Am 26.04.2021 um 09:36 schrieb Bernhard Pieber <bernhard(a)pieber.com>: > > Hi, > > I made the Tabular tests to run on Pharo 9: > https://github.com/bpieber/Tabular > > However, due to different line endings all lines of all touched methods are shown as changed: > https://github.com/VincentBlondeau/Tabular/compare/master...bpieber:master > > The reason seems to be that in the repository the files use CRLF line endings while on my Mac the line endings are converted to LF. > > I experimented with all settings of core.autocrlf (true, false, and input). However, the result was always the same. > > Is there any way I can solve this problem? > > Is there a convention which line endings Pharo projects should have in the repository on GitHub? > > Cheers, > Bernhard

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Tabular for Pharo 9 and Git line ending conventions
by Bernhard Pieber April 26, 2021

April 26, 2021

Hi, I made the Tabular tests to run on Pharo 9: https://github.com/bpieber/Tabular However, due to different line endings all lines of all touched methods are shown as changed: https://github.com/VincentBlondeau/Tabular/compare/master...bpieber:master The reason seems to be that in the repository the files use CRLF line endings while on my Mac the line endings are converted to LF. I experimented with all settings of core.autocrlf (true, false, and input). However, the result was always the same. Is there any way I can solve this problem? Is there a convention which line endings Pharo projects should have in the repository on GitHub? Cheers, Bernhard

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Have you performed software migration or library update
by Oleksandr Zaytsev April 22, 2021

April 22, 2021

Hello, I am working on a paper about different types of library update (also known as library migration). And I would like to know if you have any experience that I could document. Most modern software depends on many external libraries. And when one of those libraries releases a new version, developers have to update their code according to the changes (e.g. stop using deprecated features, make use of the new functionality, replace old classes with new ones, etc.). Please let me know if you have ever updated your software to a new version of an external library. This may include Pharo libraries (for example, Spec -> Spec2, Roassal2 -> Roassal3, etc.), Java libraries (Maven, Xerces, Log4j, etc.), JavaScript, Python, or any other programming language. I would like to know how much time did it take you to update your code, what kind of changes did you have to make, what problems did you encounter, where did you look for the information on what was changed. I would be very grateful for your help! Oleksandr

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[ANN] Superluminal v2.1.0 [v2.1.0] released!
by Buenos Aires Smalltalk April 22, 2021

April 22, 2021

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[ANN] Stargate-Consul v2.1.0 [v2.1.0] released!
by Buenos Aires Smalltalk April 22, 2021

April 22, 2021

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Re: Seaside disappearing under Windows
by David Pennington April 22, 2021

April 22, 2021

I have finally given up on trying to sort this out. Under both Windows Server 2012 and Windows 10 my Pharo image just exits leaving nothing, not even a crash file. Hence, I have fixed my MacBookAir so that it stays alive with the lid down and I am now using that as my Seaside server. It has been up for the last 4 days so it seems that this is a Windows only problem and (hopefully) not my code. In passing, I am a high-level programmer in Pharo in that I do not use any special calls or processes. Davids Totally `Objects

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Comparing source code declarations with #=
by HernÃ¡n Morales Durand April 22, 2021

April 22, 2021

Hi, I want to compare Pharo (8) source code definitions. One source is already "filed in" the image and the other source is in a .st file in chunk format (the result of a file out). I've attached in this mail an example for reproducibility. In my search for a simple equality operator, I found that MCSnapshot(s) understand #= so it could be used like this: | imageSnapshot fileSnapshot | 'MySampleClass.st' asFileReference fileIn. imageSnapshot := (RPackageOrganizer default packageOf: MySampleClass) mcPackage snapshot. fileSnapshot := (MCStReader on: 'MySampleClass.st' asFileReference readStream) snapshot. imageSnapshot = fileSnapshot. But to my surprise, the file snapshot from MCStReader is not reading the class definitions, so comparing them should answer <true> (assuming nothing has been modified) but it always returns <false>. I've also seen that both Ring chunk importers do not read methods. (RingChunkImporter fromStream: 'MySampleClass.st' asFileReference readStream) packages collect: #allMethods. (RGChunkImporter fromStream: 'MySampleClass.st' asFileReference readStream) packages collect: #allMethods. The only "solution" I've found so far is to read into CodeChunk's and then implement the #= CodeImporter chunksFromFileNamed: 'MySampleClass.st'. But I don't like it and also I think there should be a clever way to compare source between image and .st declarations. Any ideas? HernÃ¡n

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[ANN] Hyperspace v2.6.0 [v2.6.0] released!
by Buenos Aires Smalltalk April 22, 2021

April 22, 2021

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Segfault with ZnClient and https
by Petter April 22, 2021

April 22, 2021

Hi, I have trouble with latest Fedora 33, plain installation and Pharo 8.0 stable, 64 bit. When I try a ZnClient new url: 'https://something..'; get. The image segfaults. Last lines from log are: primitiveSSL:setStringProperty:toValue: atAllPut: atAllPut: primitiveSSL:connect:startingAt:count:into: stack page bytes 8192 available headroom 5576 minimum unused headroom 5952 --- It seems libssl and libcrypto is bundled togheter with Pharo, looks like version 1.0.0. I then try to compile openssl with 1.0.0-stable which I build myself, but when replacing the Pharo-libs with my own I get the message that I am using a too old tls-version error. I am a little confused on what is happening here. Do anyone have a clue? (git checkouts over ssh works fine, strange enough) Petter -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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