September 2017 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] [Pharo-users] why is adding instance variables so slow?
by Tudor Girba Nov. 17, 2017

Nov. 17, 2017

Hi, Please letâs move this discussion on pharo-dev. And keep going :) Cheers, Doru > On Apr 14, 2017, at 12:09 PM, Denis Kudriashov <dionisiydk(a)gmail.com> wrote: > > > 2017-04-14 11:09 GMT+02:00 tesonep(a)gmail.com <tesonep(a)gmail.com>: > Hi, I think the problem was not clearly explained. This is the scenario that is problematic. > This scenario does not happen in the new Spur implementation of forwarding, but I think is happening in the old one. > > 1. You have, let's say 3 instances of ClassA. > 2. You add a new instance variable to ClassA. It produces > 2a. A new ClassAv2 is created with the instances variables of ClassA and the newone > 2b. 3 Instances of ClassAv2 are created > 2c. The values of the instance variables of ClassA are copied to the ones in ClassAv2 (the ones missing are left in nil). > 2d. The 3 instances of ClassA are becomed forward to the 3 instances of ClassAv2 > 2e. The ClassA is becomed forward ClassAv2 > > I still not see why my example not reflects all these steps. I checked also scenario with class becoming: > > c1 := Class1 new. > c2 := Class2 new. > c1 becomeForward: c2. > Class1 becomeForward: Class2. > Class2 allInstances "=>#(aClass2)" > > It also works in Cog -- www.tudorgirba.com www.feenk.com "What we can governs what we wish."

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slow Pharo downloading and Travis
by Peter UhnÃ¡k Nov. 17, 2017

Nov. 17, 2017

Hi, over the past week+ downloading the latest Pharo 6 version has been extremely slow -- 5+ minutes to download the zip. a) is there a known reason for this? b) is there a way to know what is the current latest image of particular Pharo without downloading it? Could we include e.g. "latest.txt" file into http://files.pharo.org/image/60/ (and /70/ etc) that will include the latest image number? Because then we can cache on travis side which could significantly reduce the demands on pharo infrastructure. Peter

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OSWindow in Pharo 6.1 stable
by ClÃ©ment Bera Oct. 26, 2017

Oct. 26, 2017

Hi Ronie, Hi all, I am trying to use OSWindow/SDL2 in Pharo 6,1 stable, I successfully opened the window and I can draw on it with Athens (with minor changes compared to Pharo 4). However, the user events (keyboard, mouse, etc.) are not working. It seems some constants are not initialized but I am not sure what is the right way to initialize them. If I am correct Ronie you said you had a script to run to make OSWindow work in the latest Pharo version. Can you give it to me so I can use it ? I just need keyboard events for my use case. Btw for some reason in the one-click version of Pharo 32 bits on Mac there is 2 SDL plugins (libSDL2-2.0.0 and libSDL2), which leads to conflicts (the VM use randomly one lib or the other). I randomly chose one that I use and deleted the other one, do you have advises on which one I should prefer ? Maybe the events are working only with the other one ? Thanks

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Bloc status
by Torsten Bergmann Oct. 25, 2017

Oct. 25, 2017

Hi, what is the current status of Bloc and Brick? How likely is it that Bloc goes into Pharo 7? Anyone able to give a short update on current work and plans? Thanks T.

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XPath chapter...
by Stephane Ducasse Oct. 23, 2017

Oct. 23, 2017

Hi I'm fully convinced that we can have the best language if we do not let people find their way super easily to do what they want to do we will fail. Documentation is KEY and I feel a bit alone. Since I always wanted to learn XPath I started to write a chapter on XPath. I hope that I did not write too many mistakes. Pull requests are welcome here https://github.com/SquareBracketAssociates/Booklet-Scraping I would love to have one booklet on SAX and DOM handling. Stef

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PharoLauncher - uninformative Pharo7 template names
by Ben Coman Oct. 23, 2017

Oct. 23, 2017

Attached is what I see for Pharo 7 images in PharoLauncher. I presume the top one is the latest, but Its a bit hard to tell :P Anyone else seeing this? Loading ConfigurationOfPharoLauncher-ChristopheDemarey.53 (latest) and doing "ConfigurationOfPharoLauncher loadDevelopment" which loads PharoLauncher-Core-ChristopheDemarey.116 (latest) This is with Pharo builds 60486 and 60510, and same VM for both... Win32 built on May 31 2017 03:09:04 GMT Compiler: 5.4.0 VMMaker versionString VM: 201705310241 CoInterpreter VMMaker.oscog-eem.2231 uuid: de62947a-7f40-4977-a232-e06a3a80c939 May 31 2017 (but btw, does that look strange? The 60510 image was lauched from the original 60486-PharoLauncher which said it was downloading the matching VM, so I kind of expect each image to have a different VM ?? ) cheers -ben

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Writeup: how to contribute to Pharo
by Guillermo Polito Oct. 19, 2017

Oct. 19, 2017

Hi, I've made some write up for the pharo part (not metacello or external projects) https://github.com/guillep/PharoIntegrationProcess/wiki/ Contribute-a-fix-to-Pharo Of course, expect bugs on it :) Not everything is smooth. If you have comments, they are welcome. Guille -- 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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Let's prepare for Google Code-In 2017 with Pharo Consortium
by Jigyasa Grover Oct. 12, 2017

Oct. 12, 2017

Hello Pharo-ers ! On behalf of the community, I would like to thank each one of you for their significant contribution in the recently concluded *Google Summer of Code 2017* with *Pharo Consortium*. We aspire to take-off on a long flight after this successful stint. In this spirit, I proposed at ESUG 2017 that we take part in the upcoming *Google Code-In 2017*. GCI is a contest to introduce pre-university students (ages 13-17) to open source software development. Because Google Code-in is often the first experience many students have with open source, the contest is designed to make it easy for students to jump right in with /bite-sized tasks/ (3 to 5 days) having categorised as: Code, Documentation/Training, Outreach/Research, Quality Assurance, or User Interface. Students search for a task from the list created by us that interests them and claim it. They have at least three days to complete it. The student works on the task, getting guidance from mentors, if needed. Once the student is ready, they submit their work for review through the contest website. Mentors from the organisation evaluate the work, provide feedback, and if it's complete, accept it so that student can claim a new task. Otherwise, specific feedback is provided, and the student goes back to improving it. Participants who complete at least 1 task get a digital certificate. Participants who complete 3 or more tasks receive a t-shirt too. At the end of the contest, each organisation chooses five finalists to receive limited edition Google Code-in hoodies. Two finalists from each organisation get to be the grand prize winners and go on a trip to Google Headquarters in California ! The contest runs for about 6-8 weeks in December & January generally. With organisation applications beginning in October/November, we need to be well prepared for this seasonâs application with a hope to get selected. As an open source evangelist and a Pharo developer, I would like to invite all the experienced members to be a part of the "GCI with Pharo Consortium" Team and mentor students. To get added to the âprivate repositoryâ (we need to keep prospective students away from the task list before the program begins ð ) where you can put in your tasks/suggestions kindly EMail me or any of the previously added mentor. Looking forward to an appreciable representation from the Pharo community. Best regards Jigyasa Grover Pharo Consortium Org Admin, Google Summer of Code 2017 grover.jigyasa1(a)gmail.com Link to know more about GCI: https://codein.withgoogle.com/archive/ <https://codein.withgoogle.com/archive/ > Link to sample tasks: https://developers.google.com/open-source/gci/resources/example-tasks <https://developers.google.com/open-source/gci/resources/example-tasks> Link to FAQs: https://developers.google.com/open-source/gci/faq <https://developers.google.com/open-source/gci/faq > Link to contest rules: https://developers.google.com/open-source/gci/resources/contest-rules <https://developers.google.com/open-source/gci/resources/contest-rules> Link to GCI presentation for outreach: https://developers.google.com/open-source/gci/resources/downloads/Google-Co… <https://developers.google.com/open-source/gci/resources/downloads/Google-Co…> -- Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html

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[Pharo 7.0-dev] Build #135: 20434-use-Ring2-during-the-bootstrap
by ci-pharo-ci-jenkins2＠inria.fr Oct. 12, 2017

Oct. 12, 2017

There is a new Pharo build available! The status of the build #135 was: SUCCESS. The Pull Request #294 was integrated: "20434-use-Ring2-during-the-bootstrap" Pull request url: https://github.com/pharo-project/pharo/pull/294 Issue Url: https://pharo.fogbugz.com/f/cases/20434 Build Url: https://ci.inria.fr/pharo-ci-jenkins2/job/Test%20pending%20pull%20request%2…

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Never-ending computations and cmd-dot
by HernÃ¡n Morales Durand Oct. 6, 2017

Oct. 6, 2017

Hi, Guys I have the situation you will recognize in the attached picture: A never-ending recursive computation which generate zillions of pre-debug windows when cmd-dot key is pressed. Is there any setting, or any way to put a monitor to detect that cmd-dot is creating too many windows so will pop-up just one or two? Maybe someone researched this issue, does it makes sense? Cheers, HernÃ¡n

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