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

about smacc gt extensions
by Stephane Ducasse March 27, 2017

March 27, 2017

hi andrei and doru I think that we should improve the gt extension of smacc. Right now when I have a token I do not see it when inspecting it in raw. The raw view should always show the object implementation. After we can have other view. Now with the token this is super strange to get a string (or the result of value). because when you are exploring a tree you want to know if this is a string or a token. As in the following attachment: the current situation is confusing. in the list I have a list of token and when I look at one, I get a string. Stef [image: Inline image 1]

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Smalltalk jobs in Germany
by Stephane Ducasse March 27, 2017

March 27, 2017

Hi guys Tomcat is looking for Smalltalkers in Germany. Contact them not me :) richard.v-lavante(a)tomcat.de christian.mann(a)tomcat.de Stef Actually now we are still looking for more Smalltalker again. Therefore today I turn to You and want to ask, it You know anybody, who has at least 2-3 Y. ST-experience (no matter which system) and wants to work for longer time in Germany, beginning in next 4-10 weeks. I thank You for Your help in advance and look forward to interesting news from You. Have a nice week! Viele GrÃ¼Ãe Best Regards Pozdravy Richard v. Lavante *Tomcat**Â®** GmbH **ITÂ·ConsultingÂ·Management* *Tomcat*Â® GmbH Flughafen Oberpfaffenhofen Friedrichshafener Str. 1 82205 Gilching Tel. +49-(0)8105-771801-0 Fax. +49-(0)89-849544 Mobil: +49-(0)172-9778982 Mail: richard.v-lavante(a)tomcat.de www.tomcat.de GeschÃ¤ftsfÃ¼hrer: Dipl.-Ing.(univ.) Richard von Lavante Firmensitz: D-82205 Gilching Register: MÃ¼nchen HRB 85435 *Tomcat*Â® ist eingetragenes Warenzeichen der *Tomcat*Â® GmbH

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Pharo Papers
by Ben Coman March 27, 2017

March 27, 2017

And now for your regularly scheduled random trivia show... I was mildly curious about how many papers touched on Pharo. 1,110 on google scholar for... "pharo" "programming" http://tiny.cc/pharo-scholar 1,630 on normal google for... "pharo" "programming" "abstract" "introduction" "conclusion" "references" filetype:pdf http://tiny.cc/pharo-papers Probably a lot of overlap between them. cheers -ben

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Esteban's ChangeLog week of 20 March 2017
by estebanlm＠gmail.com March 27, 2017

March 27, 2017

Hello! This is my weekly ChangeLog, from 20 March 2017 to 26 March 2017. You can see it in a better format by going here: http://log.smallworks.eu/web/search?from=20/3/2017&to=26/3/2017 ChangeLog ========= 23 March 2017: -------------- * Fixed (again!) build process for linux (libssh2 version was not correct). 22 March 2017: -------------- * I made another pass to some problems on *icebeg>* : added a new "branch browser" to compare sources from remote branchs and added a couple of fixes to make the system a bit stronger... still working on this :) * I spent some time again on VM building, where a couple of issues arised: === Build windows VM with cygwin instead mingw [Nico Cellier](https://github.com/nicolas-cellier-aka-nice) moved the [OSVM](https://github.com/OpenSmalltalk/opensmalltalk-vm) to cygwin as part of his effort to produce Win64 VMs (and to align PharoVM with the other VMs flavours built). This was a cool work, but it requires some work for our side to properly build the [PharoVM](https://github.com/pharo-project/pharo-vm). === Fix a problem with SDL2 and linux SDL2 version was upgraded, but there was a remaining problem when building it, so I needed to track down the problem and fix it. Overall, the process are ok now... nevertheless I cannot merge the changes to make them available for users because with latest VM sources there are some problems here and there (not all tests pass). So I'm waiting for Eliot :) 20 March 2017: -------------- * I added edit of repositories to [Iceberg](https://github.com/npasserini/iceberg) :) This is usefull when you make a mistake and do not locate sources properly when cloning or when you want to re-locate repository after moving it in your disk. cheers! Esteban

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about push up and pull up
by Stephane Ducasse March 26, 2017

March 26, 2017

Hi guys I wonder why we have push up method and pull up instance variables. I remember that long time ago we got a discussion but I forgot. Do you remember? Stef (writing chapters for new books for total newbies: yes the future pharoers)

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Estebanâs list of blocking issues for release Pharo 6.0
by Esteban Lorenzano March 26, 2017

March 26, 2017

Hi, I wanted to share with you the list of blocking issues I see to do the release :) Image ===== - Cairo surface crash. Of course, as it is now is unnaceptable... I have some solution to test but if that does not work, I will workaround the problem by adding a (hopefully temporal) CairoPlugin. - Iceberg needs to enter the system as preview before release. This is needed to use the new process, and it was almost ready but we get blocked for a problem in VM for linux (see below). - I'm quite sure there is still a leak. During too much time we had the compactor problem so we blame it for our increasing sizes. Now it works and images continue growing without control, so we need to find it. Image 64bits ============ - Athens is working in general, but there are still some places where it uses a `long` as a pointer and of course, that's not true on 64bits (at least in windows). VM == - New VM compactor has problems when image hits a big size. Eliot is working on it, but we cannot release with VM as it is now... I hope it will be fixed next days too. - here are still some glitches and tests do not pass completely. Methods failing in travis are: DelayMicrosecondSchedulerTest>>#testForMilliseconds MutexTest>>#testFailedCriticalSectionShouldUnblockWaitingOne This, in linux VM. I think is important but I think we will have a solution next days - Dependency libraries problem. Again, in linux... we distribute libgit2, libssh2 and libssl (because we cannot rely on linux installed versions), and there is a problem to solve the paths. Ultimate solution is to use a script as entry point (not the binary), and do a LD_LIBRARY_PATH to solve it. Iâm testing this. VM 64bits ========= - Is incredibly hard to compile a 64bits version of libgit2 0.23 (the one we are using) for macOS, which makes impossible to use Iceberg. Not sure this is blocking, but well... I needed to point it :) - No VM for windows. Again, this is a know issueâ¦ but maybe I can add a StackVM for windowsâ¦ I need to see how is working.

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Good way to promote Smalltalk
by askoh March 26, 2017

March 26, 2017

Being able to shine in software competitions is a very good way for Smalltalk to get exposure. We should present our technologies as such competitions as much as possible. Enjoy the case below. http://www.cincomsmalltalk.com/main/2017/03/one-cincom-engineer-got-450-pro… Aik-Siong Koh -- View this message in context: http://forum.world.st/Good-way-to-promote-Smalltalk-tp4939758.html Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

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ZnEasy problem?
by Stephane Ducasse March 25, 2017

March 25, 2017

Hi guys in the mooc (first example) we have the following expression (ZnEasy getPng: 'http://pharo.org/web/files/pharo.png') and it does not work anymore. I'm pair programming with Amal in Rennes from the university in italy and from her univ in Rennes we both get on 60 and 50 and time out https sslException: text code: code self error: (String streamContents: [ :stream | stream << 'SSL Exception: ' << text << ' [code:'. stream print: code. stream << ']' ]) Any idea. Tx in advance

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Is this a report for an announcement?
by Eliot Miranda March 24, 2017

March 24, 2017

Hi All, there's probably no issue here, except that I'm seeing a report for an announcement, and I fear it might be wasted effort. So can someone who understands this examine the following and check whether announcements are being reported by mistake? This is an a 6.0 image with Scorch loaded (so it may be completely irrelevant). [0mProcess>>terminate NECController>>stopCompletionDelay NECController>>closeMenu MessageSend>>value MessageSend>>cull: MessageSend>>cull:cull: [ action cull: anAnnouncement cull: announcer ] in AnnouncementSubscription>>deliver: in Block: [ action cull: anAnnouncement cull: announcer ] FullBlockClosure(BlockClosure)>>on:do: FullBlockClosure(BlockClosure)>>on:fork: AnnouncementSubscription>>deliver: [ "Ensure delivery to remaining announcements" subscription deliver: anAnnouncement ] in SubscriptionRegistry>>deliver:to:startingAt: in Block: [ "Ensure delivery to remaining announcements" sub...etc... FullBlockClosure(BlockClosure)>>ifCurtailed: SubscriptionRegistry>>deliver:to:startingAt: SubscriptionRegistry>>deliver:to: SubscriptionRegistry>>deliver: Announcer>>announce: RubEditingArea(Morph)>>doAnnounce: RubEditingArea(Morph)>>announceKeyboardFocusChange: RubEditingArea(Morph)>>keyboardFocusChange: RubEditingArea(RubAbstractTextArea)>>keyboardFocusChange: HandMorph>>newKeyboardFocus: HandMorph>>releaseKeyboardFocus [ :hand | hand releaseKeyboardFocus ] in WorldMorph>>viewBox: in Block: [ :hand | hand releaseKeyboardFocus ] Array(SequenceableCollection)>>do: WorldState>>handsDo: WorldMorph>>viewBox: WorldMorph(PasteUpMorph)>>restoreMorphicDisplay WorldMorph class>>startUp WorldMorph class(Behavior)>>startUp: ClassSessionHandler>>startup: [0m _,,,^..^,,,_ best, Eliot

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Serial Port not working on Mac
by Guillermo Polito March 24, 2017

March 24, 2017

Hi all, We are here with Olivier taking a loot at how serial ports work, because he wants to use it to connect to arduino/raspberries. We saw that the serial port works nice in unix, in windows we had a look but we found some problems (and we do not have now a windows machine to test well), and we found that in mac it does not work. We are seeing that this behaviour is there since Pharo 3 (4 years ago). We tried to see if it was a problem of the VM plugin (missing depenencies using ld / otool) but everything seemed ok. Finally, we took the vm from git and tried to compile it from scratch. *Meta-question 1:* Is there a way to create an xcode project from the vm sources? We would have lost less time if we used a graphical debugger to take a look at this :). There, we found that - apparently the mac VM is using an empty implementation of the serial port plugin: https://github.com/OpenSmalltalk/opensmalltalk-vm/blob/Cog/platforms/Mac%20… We replaced the contents of that file by the one in the Unix plugin and it worked *when the plugin was compiled as internal* (delta some differences between the default values in mac and unix like uppercasing the 's' of ttyS and ttys) https://github.com/OpenSmalltalk/opensmalltalk-vm/blob/Cog/platforms/unix/p… However, as soon as we retried to recompile the plugin as external it did not work any more... The initializeModule function was never called, the module was not loaded (from the system report) and the Serial port could not be open. For this we would have liked a debugger. And I'm not a friend of gdb on the terminal... *Meta-question 2:* Is there any clean/make clean used to remove generated files. We found ourselves a lot of times bitten by the fact that even recompiling everything using `mvm -A` did not really recompile and we had to remove files from here and there... How should we propose a fix? - do we duplicate the code of the plugin in the mac and unix platforms? - or do we somehow tell the compilation process that for this plugin it should use the sources in the unix platform code? Thanks! Guille and Olivier

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