October 2013 - Pharo-users - lists.pharo.org

About validation
by StÃ©phane Ducasse March 11, 2018

March 11, 2018

Hi I read the chapter on validation of the mentoring course book of andres valloud. http://www.lulu.com/fr/fr/shop/andres-valloud/a-mentoring-course-on-smallta… And I love this extension of SUnit. I loved the idea when I saw it for the first time at Lugano (presentation of Leandro Caniglia). I encourage everybody to read it. Now does anybody implemented in Pharo the SUnit extension? I would like to play with it and eventually write a chapter on it for the next book. The idea is so good. Stef

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Re: [Pharo-users] Slot questions
by Paul Davidowitz June 2, 2015

June 2, 2015

To Camillo Bruni: I'm not using any slot image (I only looked over the paper). According to the Pharo book, 'pvt' should be implemented in the mainstream image. To Marcus Denker: There are actually several methods in the image with the 'pvt' prefix. Please update the doc (Pharo book) to remove talking about 'pvt'. It would have saved me a little headache :)

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funny idea Symbol vs. Selector
by stephane ducasse May 14, 2015

May 14, 2015

Hi guys I'm thinking aloud... I was wondering if we could not take advantage of a new class: Selector. MethodDict would only contain selectors and not symbols. I remember that I talked about that with hernan. Stef

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How do I save contents of Workspace into a collection?
by Frank Church Jan. 31, 2015

Jan. 31, 2015

Hi guys, My images are gathering a number of Workspaces whose contents I don't want to delete. I want to create a collection of Workspace contents along this defintion: Description Date Category Content (the actual text in the Workspace). In the final version I would like to be able to select a workspace and simply click a button or a menu item and get a dialog where I can enter the Description, Category and Date with the Workspace contents automatically captured into a text box. Copying and pasting the contents would be okay to start with. Filing it out would be another aspect later. What kind of array would best suited to the task? There is quite a number of them depicted here: http://www.jmcsweeney.co.uk/computing/m206/collections_intro.php What could be the best way to go about it? For those who are curious I am experimenting with the original ideas of Smalltalk where a computer user would do everything in Smalltalk workspace/desktop. I am intrigued by the possibility and somehow it seems eminently doable. -- Frank Church ======================= http://devblog.brahmancreations.com

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if Pharo is key for you
by StÃ©phane Ducasse Jan. 18, 2015

Jan. 18, 2015

Hi guys if Pharo is key for you then you should ask yourself what you did for Pharo recently. Writing code, writing documentation helping closing bug entries, participating to the association, to the consortium... Pharo is not happening from spontaneous generation. Stef

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Slots
by Thomas Worthington May 19, 2014

May 19, 2014

I notice that "Slots" are slated for addition in Pharo 3.0. Is there anywhere I can see which model of "slots" is being suggested? I'm not sure that slots, in the sense of Javascript, are a good idea generally and, in the broader context, I'm very unhappy with the idea of messing with Smalltalk's generally clean syntax by adding new language features. Could the desired effects be achieved by subclassing Behavour or somesuch high-level approach? -- Thomas Worthington

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image resize event
by Usman Bhatti April 11, 2014

April 11, 2014

Hello, I would like to resize all my windows opened inside my image when resizing the image window. Can anyone point me to the hook where I can plug my code for window resizing? For example, it would like to do onImageResize World fitAll. tx, usman

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NeoJSON and inheritance
by Norbert Hartl March 22, 2014

March 22, 2014

How is inheritance supposed to work in NeoJSON? I only figured it out by doing that manually: neoJsonMapping: aMapper super neoJsonMapping: aMapper. (aMapper mappingFor: self) mapInstVar: #longitude; mapInstVar: #latitude. Is there a better way to do? Norbert

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Call for Participation in the Smalltalk Devroom at FOSDEM2014
by Stephan Eggermont Jan. 13, 2014

Jan. 13, 2014

Call for Participation in the Smalltalk Devroom at FOSDEM 2014. http://www.fosdem.org, please forward " A devroom for the Pharo, Squeak, Amber, GST, EtoilÃ©, Seaside, Moose Smalltalk projects & Newspeak as derived language. Smalltalk environments offer a very high development productivity, unmatched by their successors. Come do some pair programming with us and experience yourself the advantages of a real OO environment" The meetup will take place Saturday, February 1, 2014, from 9AM until 5PM, building AW. This room has 72 seats, a VGA video projector and wireless internet. More information will be available later. If there are volunteers to record video content, the FOSDEM organization kindly offered to provide needed equipment & instructions. Please let me know if you would be willing to spend some time pointing a camera at a speaker. Proposals on content and format are welcome. People interested in running a session should send me an email at stephan ( @ ) stack ( dot ) nl with 'FOSDEM2014â in the subject and the following information: - Their name - The project they are associated with - A short bio, to be put on the website along with their speaker name - (optionally) a picture of themselves - The title of their session (which will go on the website and in the booklet) - A abstract describing the session in further detail. - The desired length of the session. - The desired time slot in which they want to hold the session. I will send out updates on a regular basis to the lists and anyone stating his interest. Suggested values for the duration are 55min, 25min, 6m40 (Pecha Kucha). The desired time slot is meant to help you prevent conflicts with other dev rooms in which you might have a talk or your travel arrangements. There are alternative, non smalltalk-specific tracks available: lightning talk and the main track The deadline for submissions is December 31, 23:00 GMT+1. Devroom related URLs: http://www.pharo-project.org http://www.squeak.org/ http://etoileos.com/ http://www.seaside.st/ http://smalltalk.gnu.org/ http://www.moosetechnology.org http://amber-lang.net http://newspeaklanguage.org/ http://www.esug.org First proposal already arrived: Stefan Marr proposed: I could give a presentation on SOM (Simple Object Machine) Smalltalk. I would especially go into detail of the Truffle-based and the RPython (PyPy) based implementations to show modern ways of language implementations with the goal of achieving high performance.

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Using FFI
by Annick Fron Dec. 10, 2013

Dec. 10, 2013

Hi I want to launch a simple init with the following C signature : void gst_init (int *argc, char **argv[]) If I write <apicall: void 'gst_init' (int*, char**) module: 'blabla'> I get a Smalltalk syntax error Annick Fron

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Arduino package extra files
by Bernat Romagosa Nov. 15, 2013

Nov. 15, 2013

Hi list, After successfully installing the Arduino package, I noticed this Getting Started text: *After installing the Arduino packages by evaluating...* * * * ConfigurationOfArduino load.* * * *...you'll need a couple extra support files in order to be able to upload programs to your Arduino board. You can download them from here:* * * * http://www.mediafire.com/?1rep41uygl4rpf1* * * *Extract the contents of that file in the same directory where you have your Pharo image.* But the mediafire link is broken. Where can I get the extra support files? Thanks! Bernat. -- Bernat Romagosa.

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CogVM arguments in Win32
by Bernat Romagosa Nov. 13, 2013

Nov. 13, 2013

Hi list! I've never used Pharo on Windows before, but we're starting to package a multi-platform app right now and I've just found out command line arguments don't work like I thought they would. I need to run the image headless, so I figured: bin-win32\Pharo -headless shared\Pharo2.0.image Would do the trick, but it's not working. Pharo /? doesn't give any hints either, and I can't seem to find the docs for the Windows VM anywhere. Does anybody know where I can find a Win32 VM reference? Thanks! -- Bernat Romagosa.

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Pharo Sprint in Buenos Aires Nov 7th
by Gisela Decuzzi Nov. 1, 2013

Nov. 1, 2013

Hello, we are organizing a Pharo Sprint in Bs As: When: November 7th, starting at 10:00 am Where: 10 Pines (Av Leandro N. Alem 693 5Â°B)

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another talk online: Pharo: Objects At Your Fingertips
by Marcus Denker Nov. 1, 2013

Nov. 1, 2013

The idea of this talk is to give an intro for someone who know OO but not Pharo (or Smalltalk). (this means for someone who does it has noting new) Pharo: Objects At Your Fingertips A talk given at Universitat PolitÃ¨cnica de Catalunya on Oct 30, 2013. SlideShare: http://www.slideshare.net/MarcusDenker/pharo-objects-at-your-fingertips PDF: http://marcusdenker.de/talks/13BarcelonaTalk/PharoObjectsAtYourFingertips.p… Video: http://media.fib.upc.edu/fibtv/streamingmedia/view/2/821

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Create a .exe application in Pharo 2.0
by Paolo Piccinelli Oct. 31, 2013

Oct. 31, 2013

Hi Everybody, i'd like to know what can i have to do to create a .exe application/desktop application, after creating a Package with all the working classes in Pharo 2.0. I created the Minesweeper game, and i'm tired to write into the workspace MSGame new openInWorld. How can i automatize that?Thanks for the help guys! W Pharo!Paolo

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Create a .exe application in Pharo 2.0
by Paolo Piccinelli Oct. 31, 2013

Oct. 31, 2013

Hi Ben, thanks for the fast reply.What do you mean for "use the preferences?". Is it a method, right? It's my first ever application, so i need some explanation about that.Thanks again.Paolo

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Anyone have a script to take a set of Packages and commit them in chronological order to a git repo?
by Paul DeBruicker Oct. 31, 2013

Oct. 31, 2013

Hi, I'm thinking to use travisci.org to build and test some of the MIT licensed packages I've been maintaining. I'd like to get those packages development histories into git in an orderly way, so the information is there for curiosity's sake. Thanks Paul

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Strange behaviour of abstract method
by Michael Paap Oct. 31, 2013

Oct. 31, 2013

Hello list, in our OOP course we noticed some behaviour of an abstract method, which I cannot explain. Maybe you can help me: If I do the following SequenceableCollection new add: 123 I would expect an Error. The method add: is not implemented in SequenceableCollectionbut inherited from collection, where it's only statement is self subclassResponsibility But in reality, Pharo seems to enter an endless loop, consuming more and more memory. Can someone please explain to me, what happens here? Greetings, Michael

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Oct. 30, 2013

http://www.slideshare.net/pharoproject/2013smalltalksconference-pharo-is-yo… Stef

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CogVM arguments in Win32
by Torsten Bergmann Oct. 30, 2013

Oct. 30, 2013

1. HEADLESS The SqueakVM had support for this and it was usable in the past <quote> -headless Tells Squeak to run without a main window. However, for allowing at least some access to Squeak, an icon is added to the system tray. If you double-click this icon, the Squeak window will show up again. </quote> Ask on the VM list - maybe the "headless" option could be fixed for Pharo VM to work again. 2. Shell_NotifyIcon route You use "apicall" pragram - so I expect you will use FFI. Note that I would not go that path because FFI its outdated and unsupported. Go the NativeBoost route - its much better! PNOTIFYICONDATA is a windows structure you would have to wrap. You could look at various examples in the "OS-Windows" package (loadable from config browser in Pharo 3.0) to get some examples of wrapped structures. I'm not sure if "Shell_NotifyIcon" is the right way - if I remember correctly from my C/C++ and SmalltalkMT times it is just used to work with the tray icons. These will usally have a menu (so you need callbacks) and the window is just invisible (receiving no events, ...) while the process is running. Note that you have to dive down into the darkness of Win API before you get enlightened here ;) Bye T.

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moose 4.9
by Tudor Girba Oct. 30, 2013

Oct. 30, 2013

We are happy to announce version 4.9 of the Moose Suite: http://moosetechnology.org/download/4.9 This is a minor release still based on Pharo 2.0. The differences from Moose 4.8 are: The Mondrian engine was removed. The transition to Roassal is now complete. - Small fixes in Roassal layouts and rendering. - Small fix in FAMIX regarding manipulation of accesses. - Small visual fix in Glamour for rendering splitters in tables. A list of issues addressed in this release can be found at: http://code.google.com/p/moose-technology/issues/list?can=1&q=status=Fixed%… The Moose Suite 4.9 comes for each platform as a separate bundle: - Moose Suite 4.9 for Mac https://dl.dropboxusercontent.com/u/18323746/Moose/moose_suite_4_9-mac.zip - Moose Suite 4.9 for Windows https://dl.dropboxusercontent.com/u/18323746/Moose/moose_suite_4_9-win.zip - Moose Suite 4.9 for Linux https://dl.dropboxusercontent.com/u/18323746/Moose/moose_suite_4_9-linux.zip The Moose Suite 4.9 can also be loaded in a Pharo 2.0 image either from the Configuration Browser, or by executing the following script: Gofer new smalltalkhubUser: 'Moose' project: 'Moose'; package: 'ConfigurationOfMoose'; load. ((Smalltalk at: #ConfigurationOfMoose) project version: '4.9-snapshot') load

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Prepared statements with PostgresV2
by Esteban A. Maringolo Oct. 30, 2013

Oct. 30, 2013

I'm using PGConnection from the PostgresV2 package. I'd like to use prepared statements to avoid SQL Injection and continuous recompilation of the query. Ej: conn execute: 'SELECT * FROM MYTABLE WHERE COLUMN = ?' withAll: (Array with: columnValue) How can I do this? Regards, -- View this message in context: http://forum.world.st/Prepared-statements-with-PostgresV2-tp4717659.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Slides of my Lecture this morning..
by Marcus Denker Oct. 29, 2013

Oct. 29, 2013

Hi, I am just visiting Jordi Delgado in Barcelona and I gave a lecture in his course this morning. âAdvanced Reflection in Pharoâ, this is meant to be a lecture after an introduction to standard Smalltalk reflection. SlideShare http://www.slideshare.net/MarcusDenker/lecture-27685035 PDF http://marcusdenker.de/talks/13BarcelonaLecture/ Marcus

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Reminder: Smalltalk Meetup in ZÃ¼rich, Nov 5th
by jtuchel＠objektfabrik.de Oct. 28, 2013

Oct. 28, 2013

Hi, this is just a kind reminder that we're meeting in ZÃ¼rich next week to chat about our favorite programming language, frameworks, news etc., and have a great time! When? November 5th, 2013, 19:00 Where? Restaurant Steinfels (near HardbrÃ¼cke, good to reach from anywhere by bus, tram, train, plane and even car - just don't expect free parking ;-) ) Who? Anybody interested in Smalltalk (the programming environment ;-) ), any flavor, any level, any framework It would be cool if you could spread the word, come yourself, bring colleagues with you, blog abut this, and let us know you're coming. See you next week, Joachim -- -- â¨----------------------------------------------------------------------- â¨Objektfabrik Joachim Tuchel mailto:jtuchel@objektfabrik.de â¨Fliederweg 1 http://www.objektfabrik.de D-71640 Ludwigsburg http://joachimtuchel.wordpress.com Telefon: +49 7141 56 10 86 0 Fax: +49 7141 56 10 86 1

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profStef missing executeMethod
by Charles Hixson Oct. 27, 2013

Oct. 27, 2013

I'm using: Pharo2.0 Latest update: #20625 I'm at "Reflection continued When I do the command to go to the next lesson: ProfStef default executeMethod: (ProfStef lookupSelector:#next). I get the error: ProfStef(Object) doesNotUnderstand: #executeMethod When I browse to the class in the system browser, ProfStef doesn't have an executeMethod object. I also checked Object and ProtoObject,just to be sure, but neither of them listed an executeMethod either. P.S.: I also looked at the Class Methods, though default looks like it returns an instance, so that didn't feel reasonable. Where is executeMethod supposed to reside, and was this an intentional change that just hasn't propagated yet ('m guessing the removal of the method) or is something wrong with my image? Also, if I wanted to include it into ProfStef, what would the method look like? -- Charles Hixson

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