February 2022 - Pharo-users

[ANN] Announcing the Winner of the 2022 JRMPC Competition
by horrido.hobbies＠gmail.com Feb. 7, 2022

Feb. 7, 2022

I am pleased to announce the winner of this year's JRMPC competition. The judges reviewed all the submissions and came to the extraordinary decision that onlyÂ **Ana DuCristea**Â of John G. Diefenbaker High School in Calgary, AB was worthy of an award. Her work was outstanding and constituted enormous dedication and enthusiasm for Smalltalk. Unfortunately, none of the other contestants rose to the occasion and there will be no Second or Third Prizes. Therefore, it is my decision that Ana DuCristea will receive the full prize fund of $2,500. My most heart-felt congratulations to Ana. Well done!

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First Call for Papers: 15th ACM SIGPLAN International Conference on Software Language Engineering (SLE 2022)
by Andrei Chis Feb. 7, 2022

Feb. 7, 2022

------------------------------------------------------------------------ 15th ACM SIGPLAN International Conference on Software Language Engineering (SLE 2022) December 5-10, 2022 Auckland, New Zealand https://conf.researchr.org/home/sle-2022 http://www.sleconf.org/2022 Follow us on twitter: https://twitter.com/sleconf ------------------------------------------------------------------------ We are pleased to invite you to submit papers to the 15th ACM SIGPLAN International Conference on Software Language Engineering (SLE 2022), held in conjunction with SPLASH, GPCE and SAS 2022. Based on the future developments the conference will be hosted in Auckland, New Zealand on December 5-10, 2022. --------------------------- Topics of Interest --------------------------- SLE covers software language engineering rather than engineering a specific software language. Topics of interest include, but are not limited to: - Software Language Design and Implementation - Approaches to and methods for language design - Static semantics (e.g. design rules, well-formedness constraints) - Techniques for specifying behavioral / executable semantics - Generative approaches (incl. code synthesis, compilation) - Meta-languages, meta-tools, language workbenches - Software Language Validation - Verification and formal methods for languages - Testing techniques for languages - Simulation techniques for languages - Software Language Integration and Composition - Coordination of heterogeneous languages and tools - Mappings between languages (incl. transformation languages) - Traceability between languages - Deployment of languages to different platforms - Software Language Maintenance - Software language reuse - Language evolution - Language families and variability, language and software product lines - Domain-specific approaches for any aspects of SLE (design, implementation, validation, maintenance) - Empirical evaluation and experience reports of language engineering tools - User studies evaluating usability - Performance benchmarks - Industrial applications - "Synergies between Language Engineering and emerging/promising research areas" - AI and ML language engineering (e.g., ML compiler testing, code classification) Quantum language engineering (e.g., language design for quantum machines) - Language engineering for physical systems (e.g., CPS, IoT, digital twins) - Socio-technical systems and language engineering (e.g., language evolution to adapt to social requirements) - Etc. --------------------------- Types of Submissions --------------------------- SLE accepts the following types of papers: - **Research papers**: These are "traditional" papers detailing research contributions to SLE. Papers may range from 6 to 12 pages in length, and may optionally include 2 further pages of bibliography/appendices. Papers will be reviewed with an understanding that some results do not need 12 full pages and may be fully described in fewer pages. - **New ideas / vision papers**: These are papers that may describe new, unconventional software language engineering research positions or approaches that depart from standard practice. They can describe well-defined research ideas that are at an early stage of investigation. They could also provide new evidence to challenge common wisdom, present new unifying theories about existing SLE research that provides novel insight or that can lead to the development of new technologies or approaches, or apply SLE technology to radically new application areas. New ideas / vision papers must not exceed 5 pages, and may optionally include 1 further page of bibliography / appendices. - **SLE Body of Knowledge**: The SLE Body of Knowledge (SLEBoK) is a community-wide effort to provide a unique and comprehensive description of the concepts, best practices, tools and methods developed by the SLE community. To this respect, the SLE conference will accept surveys, essays, open challenges, empirical observations and case study papers on the SLE topics. These can focus on but they are not limited to methods, techniques, best practices and teaching approaches. Papers in this category can have up to 20 pages, including bibliography/appendices. - **Tool papers**: These are papers which focus on the tooling aspects which are often forgotten or neglected in research papers. A good tool paper focuses on practical insights that are likely to be useful to other implementers or users in the future. Any of the SLE topics of interest are appropriate areas for tool demonstrations. Submissions must not exceed 5 pages and may optionally include 1 further page of bibliography / appendices. They may optionally come with an appendix with a demo outline / screenshots and/or a short video/screencast illustrating the tool. **Workshops**: Workshops will be organized by SPLASH. Please inform us and contact the SPLASH organizers if you would like to organize a workshop of interest to the SLE audience. Information on how to submit workshops can be found at the SPLASH 2022 Website. --------------------------- Two submission rounds --------------------------- For the first time, SLE is introducing a two-phase submission and review process. This will give authors submitting to the first round an extra opportunity to improve their work (if needed) based on the comments and feedback by the reviewers. Furthermore, this will increase the quality of SLE accepted papers. Manuscripts can be submitted to any of the two submission rounds. Decisions on the papers submitted to the **first round** will be: accept, reject or re-submit revised version. While rejected papers must not, revised versions may be submitted to the second round, with an accompanying response letter to the reviewers stating the changes made and how the authors addressed the reviewersâ criticisms. Re-submissions will be reviewed by the same reviewers. Decisions on fresh papers submitted to the **second round** will be: accept or reject. The authors of those papers that are likely to be rejected but have at least one reviewer who is championing it will have the chance to respond to the reviewers before the final decision is made. --------------------------- Important Dates --------------------------- All dates are Anywhere on Earth. * 1st round submissions * Abstract submissions: April 6, 2022 * Paper submissions: April 13, 2022 * Notification: May 13, 2022 * 2nd round submissions * Abstract submissions: July 8, 2022 (tentative) * Paper submissions: July 15, 2022 (tentative) * Review notification: September 7, 2022 (tentative) * Author response period: September 12, 2022 (tentative) * Notification: September 19, 2022 (tentative) * Artifact submissions: September 26, 2022 (tentative) * Artifact kick-the-tires Author response: October 10, 2022 (tentative) * Artifact notification: October 24, 2022 (tentative) * Camera-ready (for both rounds): November 4, 2022 (tentative) * Conference: December 5-10, 2022 (TENTATIVE) **COVID-19 Disclaimer** Due to the uncertainties related to the current COVID-19 pandemic, the second round submission deadlines, the artifact evaluation deadlines, the camera-ready deadline and the conference dates are still *preliminary* and will be closed in the next few weeks. --------------------------- Format --------------------------- Submissions have to use the ACM SIGPLAN Conference Format "acmart"(http://sigplan.org/Resources/Author/#acmart-format) please make sure that you always use the latest ACM SIGPLAN acmart LaTeX template(https://www.acm.org/binaries/content/assets/publications/consolida…, and that the document class definition is `\documentclass[sigplan,anonymous,review]{acmart}`. Do not make any changes to this format! Ensure that your submission is legible when printed on a black and white printer. In particular, please check that colors remain distinct and font sizes in figures and tables are legible. To increase fairness in reviewing, a double-blind review process has become standard across SIGPLAN conferences. In this line, SLE will follow the double-blind process. Author names and institutions should be omitted from submitted papers, and references to the authorsâ own related work should be in the third person. No other changes are necessary, and authors will not be penalized if reviewers are able to infer their identities in implicit ways. All submissions must be in PDF format. The submission website is: https://sle22.hotcrp.com --------------------------- Concurrent Submissions --------------------------- Papers must describe unpublished work that is not currently submitted for publication elsewhere as described by SIGPLANâs Republication Policy (http://www.sigplan.org/Resources/Policies/Republication) Submitters should also be aware of ACMâs Policy and Procedures on Plagiarism (http://www.acm.org/publications/policies/plagiarism_policy) Submissions that violate these policies will be desk-rejected. --------------------------- Policy on Human Participant and Subject Research --------------------------- Authors conducting research involving human participants and subjects must ensure that their research comply with their local governing laws and regulations and the ACMâs general principles as stated in the ACMâs Publications Policy on Research Involving Human Participants and Subjects (https://www.acm.org/publications/policies/research-involving-human-particip…) Submissions that violate this policy will be rejected. --------------------------- Reviewing Process --------------------------- All submitted papers will be reviewed by at least three members of the program committee. Research papers and tool papers will be evaluated concerning novelty, correctness, significance, readability, and alignment with the conference call. New ideas/vision papers will be evaluated primarily concerning novelty, significance, readability, and alignment with the conference call. SLEBoK papers will be reviewed on their significance, readability, topicality and capacity of presenting/evaluating/demonstrating a piece of BoK about SLE. For fairness reasons, all submitted papers must conform to the above instructions. Submissions that violate these instructions may be rejected without review, at the discretion of the PC chairs. After each review round, authors will get a chance to respond before a final decision is made. --------------------------- Artifact Evaluation --------------------------- For the seventh year, SLE will use an evaluation process for assessing the quality of the artifacts on which papers are based to foster the culture of experimental reproducibility. Authors of accepted research papers are invited to submit artifacts. For more information, please have a look at the Artifact Evaluation (http://www.sleconf.org/2022/ArtifactEvaluation.html) page. --------------------------- Special Issue --------------------------- A special issue on the conference topic in a high-impact journal is under negotiation. --------------------------- Awards --------------------------- - **Distinguished paper**: Award for most notable paper, as determined by the PC chairs based on the recommendations of the programme committee. - **Distinguished artifact**: Award for the artifact most significantly exceeding expectations, as determined by the AEC chairs based on the recommendations of the artifact evaluation committee. --------------------------- Publication --------------------------- All accepted papers will be published in the ACM Digital Library. **AUTHORS TAKE NOTE**: The official publication date is the date the proceedings are made available in the ACM Digital Library. This date may be up to two weeks prior to the first day of the conference. The official publication date affects the deadline for any patent filings related to published work. --------------------------- SLE and Doctoral Students --------------------------- SLE encourages students to submit to the SPLASH doctoral symposium. Authors of accepted papers will have the chance to present their work to the SLE audience, too. --------------------------- Organisation --------------------------- Chairs: * General chair: Bernd Fischer, Stellenbosch University, South Africa * PC co-chair: Lola BurgueÃ±o, Open University of Catalonia, Spain * PC co-chair: Walter Cazzola, UniversitÃ degli Studi di Milano, Italy * Artefact Evaluation co-chair: Thomas KÃ¼hn, Karlsruhe Institute of Technology, Germany * Artefact Evaluation co-chair: Juliana A. Pereira, Pontifical Catholic University of Rio de Janeiro, Brazil Program committee: Shaukat Ali, Simula Research Laboratory, Norway Arvid Butting, Aachen University, Germany Marsha Chechik, University of Toronto, Canada Shigeru Chiba, University of Tokyo, Japan BenoÃ®t Combemale, University of Rennes, France Zhenjiang Hu, Peking University, China JÃ¶rg Kienzle, McGill University, Canada Dimitris Kolovos, University of York, UK Thomas KÃ¼hn, Karlsruhe Institute of Technology, Germany Juan de Lara, Universidad AutÃ³noma de Madrid, Spain Stefan Marr, University of Kent, UK Marjan Mernik, University of Maribor, Slovenia Natsuko Noda, Shibaura Institute of Technology, Japan Juliana A. Pereira, Pontifical Catholic University of Rio de Janeiro, Brazil Elizabeth Scott, University of London, UK Marco Servetto, Victoria University of Wellington, New Zealand Emma SÃ¶derberg, Lund University, Sweden Walid Taha, Halmstad University , Sweden Marco Tullio Valente, Universidade Federal de Minas Gerais, Brazil Erik Van Wyk, University of Minnesota , USA Alfonso de la Vega, University of Cantabria, Spain Ran Wei, Dalian University of Technology, China Andreas Wortmann, Stuttgart University, Germany Vadim Zaytsev, University of Twente, Netherlands Steffen Zschaler, Kingâs College London, UK --------------------------- Contact --------------------------- For additional information, clarification, or answers to questions, please contact the Programme Chairs (Lola BurgueÃ±o and Walter Cazzola) at sle22-chairs _at_ di.unimi.it.

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Re: aio event forwarding not supported
by Davide Varvello Feb. 7, 2022

Feb. 7, 2022

Hi Stephane > On Saturday, February 5, 2022, 10:58:37 AM GMT+1, stephane.ducasse(a)free.fr <stephane.ducasse(a)free.fr> wrote: >Hi david > >Can you tell us on which version of os-x you are? I'm on Big Sur, see my original message:Â https://www.mail-archive.com/pharo-users@lists.pharo.org/msg40530.html And the bug I openedÂ https://pharo.fogbugz.com/f/cases/22925/aio-event-forwarding-not-supportedÂ > We faced many glitches with monterrey. For example sometimes at startup my images do not get events :( > Pablo is going on vacation for two weeks and esteban and me too :) > So we will be slower to react.Â > Now you face what we face, the world keeps changing under our feets and > this brings us many things that we did not want/plan to work on. > This is why VMs are nice for the users they abstract the shit underneath but nevertheless it exists. > S I know it's a tough job, I'm trying to implement a workaround, thanks for your work. Davide

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Re: aio event forwarding not supported
by David T. Lewis Feb. 4, 2022

Feb. 4, 2022

Hi Davide, Actually the warning has been removed in newer versions of OSProcess. I do not have time to do an update for Pharo now, but in the mean time you can apply this change in your image to remove the notifier: AioEventHandler>>initializeForExceptions: exceptionEventFlag readEvents: readEventFlag writeEvents: writeEventFlag semaphore := Semaphore new. semaIndex := Smalltalk registerExternalObject: semaphore. (AioPluginPresent = true) ifTrue: [ ([self aioEnable: self descriptor forSemaphore: self semaIndex externalObject: true] on: Warning do: [:e | self close. "unregister the semaphore" OSProcess trace: e messageText asString. nil]) ifNotNil: [handlerProc := self handleExceptions: exceptionEventFlag readEvents: readEventFlag writeEvents: writeEventFlag]] HTH, Dave On Fri, Feb 04, 2022 at 03:05:57PM +0000, Davide Varvello wrote: > Hi David,That's weird because if the AioPlugin is not present in my VM,??PipeableOSProcess shouldn't have worked till this morning... when I upgraded my mac :-) > The warning is not skippable, it stops me at:??MessageNotUnderstood: IRJump>> #nextBytecodeOffsetAfterJumpCheersDavide > > On Friday, February 4, 2022, 03:54:59 PM GMT+1, David T. Lewis <lewis(a)mail.msen.com> wrote: > > On Fri, Feb 04, 2022 at 01:46:46PM +0000, Davide Varvello via Pharo-users wrote: > > Hi guys, > > Suddenly evaluating a simple: (PipeableOSProcess command: 'ps') output, or any other PipeableOSProcess command, Pharo gives me: "aio event forwarding not supported". > > I guess it is something related to the latest update of the OS, specifically Big Sur 11.6.3 (20G415) https://support.apple.com/en-us/HT213055I'm on a Mac, of course, Pharo 8.0.0, Build information: Pharo-8.0.0+build.1128.sha.9f6475d88dda7d83acdeeda794df35d304cf620d (64 Bit) > > Can you help me, please?CheersDavide > > Hi Davide, > > The warning message indicates that the AioPlugin is not present > in your VM. I do not know the reason for that, although your > PipeableOSProcess should still work if you proceed through the > warning. > > Dave > >

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aio event forwarding not supported
by Davide Varvello Feb. 4, 2022

Feb. 4, 2022

Hi guys, Suddenly evaluating a simple: (PipeableOSProcess command: 'ps') output, or any other PipeableOSProcess command, Pharo gives me: "aio event forwarding not supported". I guess it is something related to the latest update of the OS, specifically Big Sur 11.6.3 (20G415) https://support.apple.com/en-us/HT213055I'm on a Mac, of course, Pharo 8.0.0, Build information: Pharo-8.0.0+build.1128.sha.9f6475d88dda7d83acdeeda794df35d304cf620d (64 Bit) Can you help me, please?CheersDavide

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PharoDays'22: Inscriptions are open!
by Guillermo Polito Feb. 4, 2022

Feb. 4, 2022

-------------------------------------------------------------------------------- Pharo Days March 3rd and 4th, Lille, France https://days.pharo.org/ <https://days.pharo.org/> ââââââââââââââââââââââââââââââââââââââââ Inscriptions are open! Do not miss the opportunity to meet the Pharo programming environment and its community! PharoDays is a unique event where you can meet other Pharoers, discover latest advances, and share your experience. Hand-ons sessions are there to help you getting started on advance topics. Follow the "Show us your project" sessions to get immersed in Pharo lively community. This year, PharoDays is a mix of technical talks and hand-ons. Come to join business chat and enjoy friendly atmosphere and discuss with experts. Check the tentative schedule: from building command line interfaces to web applications, through modern desktop applications, visualisations, debugging and even a live music performance! See you in march!

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Run old 32-Bit image on 64-Bit macOS
by Steffen MÃ¤rcker Feb. 3, 2022

Feb. 3, 2022

Hi, I am looking for a way to run an old 32-Bit image on a modern Mac (Montery). Pharo launcher gives me the following error: Cannot run Prism Grammar (Pharo 6.1)! This image requires a 32-Bit VM to run and 32-Bit applications are not supported on this Operating System. Is there a way to run it nevertheless? I want to extract some old app/code from the image for further use. Best, Steffen

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[ANN] When Pigeons Talk: The Evolution of Programming Education
by horrido.hobbies＠gmail.com Feb. 2, 2022

Feb. 2, 2022

Iâd like to give a shout out to David Buckâs latest project: https://richardeng.medium.com/when-pigeons-talk-the-evolution-of-programmin… I think itâs a very worthy project and it deserves your support. By the way, heâs one of the four keynote speakers at Camp Smalltalk Supreme. Donât forget to register your presentations before the mid-March deadline. Thanks, Richard

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mentor wanted for a web application
by Roelof Wobben Feb. 2, 2022

Feb. 2, 2022

Hello, I like Pharo a lot and I like to make a web site with it for a volunteer organisation. For the web site I need a login system. And some products which can be "borrowed" by a client which has a subscription. We have also some volunteer in the "shop"Â where a client can also "borrow" some toys. So a client can "borrow"Â some toysÂ in the "shop" and also on the internet. So I hope someone can and will be a mentor for me so we discuss the best way to make such a website. So which "framework"Â to use and which database to use and which classes I need Regards, Roelof

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What can you do with Pharo?
by contactme＠kathe.in Feb. 2, 2022

Feb. 2, 2022

I am new to Pharo, so pardon my ignorance. I used to be a professional developer between 1996 and 2007 during which time I developed personal Management Information Systems for employees at my company's HRD using Microsoft Access, then moved on to leading a team of C++ developers to build a graphical operating environment atop the bare Linux kernel, then took up rapid prototyping using PHP at various Web-related startups. I have been aware of Smalltalk since 1999 and have only fiddled-around with it, though have failed to learn how to produce software due to the different syntax (as compared to C++ and PHP). I would like to focus on Smalltalk more seriously and found the cleanness of Pharo to be quite refreshing. My problem is that I can't figure out what I could build using the wonderful tools in the amazing environment that is Pharo. Project ideas are most welcome, though, I no longer wish to develop for the Web. Best regards, ~Kathe Â

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