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[Pharo 7.0-dev] Build #786: 21745-Trait-new-should-raise-error-instead-of-VM-crash
by ci-pharo-ci-jenkins2＠inria.fr April 20, 2018

April 20, 2018

There is a new Pharo build available! The status of the build #786 was: SUCCESS. The Pull Request #1229 was integrated: "21745-Trait-new-should-raise-error-instead-of-VM-crash" Pull request url: https://github.com/pharo-project/pharo/pull/1229 Issue Url: https://pharo.fogbugz.com/f/cases/21745 Build Url: https://ci.inria.fr/pharo-ci-jenkins2/job/Test%20pending%20pull%20request%2…

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[Pharo 7.0-dev] Build #785: 21733 Categorize methods in FontChoosers4
by ci-pharo-ci-jenkins2＠inria.fr April 20, 2018

April 20, 2018

There is a new Pharo build available! The status of the build #785 was: SUCCESS. The Pull Request #1219 was integrated: "21733 Categorize methods in FontChoosers4" Pull request url: https://github.com/pharo-project/pharo/pull/1219 Issue Url: https://pharo.fogbugz.com/f/cases/21733 Build Url: https://ci.inria.fr/pharo-ci-jenkins2/job/Test%20pending%20pull%20request%2…

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[Pharo 7.0-dev] Build #784: 21735 Improve AnnouncerTest
by ci-pharo-ci-jenkins2＠inria.fr April 20, 2018

April 20, 2018

There is a new Pharo build available! The status of the build #784 was: SUCCESS. The Pull Request #1221 was integrated: "21735 Improve AnnouncerTest" Pull request url: https://github.com/pharo-project/pharo/pull/1221 Issue Url: https://pharo.fogbugz.com/f/cases/21735 Build Url: https://ci.inria.fr/pharo-ci-jenkins2/job/Test%20pending%20pull%20request%2…

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Changed #atEnd primitive - #atEnd vs #next returning nil
by Sven Van Caekenberghe April 20, 2018

April 20, 2018

Somehow, somewhere there was a change to the implementation of the primitive called by some streams' #atEnd. IIRC, someone said it is implemented as 'remaining size being zero' and some virtual unix files like /dev/random are zero sized. Now, all kinds of changes are being done image size to work around this. I am a strong believer in simple, real (i.e. infinite) streams, but I am not sure we are doing the right thing here. Point is, I am not sure #next returning nil is official and universal. Consider the comments: Stream>>#next "Answer the next object accessible by the receiver." ReadStream>>#next "Primitive. Answer the next object in the Stream represented by the receiver. Fail if the collection of this stream is not an Array or a String. Fail if the stream is positioned at its end, or if the position is out of bounds in the collection. Optional. See Object documentation whatIsAPrimitive." Note how there is no talk about returning nil ! I think we should discuss about this first. Was the low level change really correct and the right thing to do ? Note also that a Guille introduced something new, #closed which is related to the difference between having no more elements (maybe right now, like an open network stream) and never ever being able to produce more data. Sven

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DelayScheduler cleanup & Bootstrap
by Ben Coman April 20, 2018

April 20, 2018

I am doing a pass to cleanup the DelayScheduler hierarchy. I'll be refactoring of the hierarchy to aid code understanding and eliminate redundant instance variables from the original code. The target structure is.... DelayNullScheduler -- minimum interface to avoid errors in rest of system (6 empty methods) |__DelayBasicScheduler -- fully working sans race protection (equivalent to Courageous scheduler) |__DelaySpinScheduler -- plus race protection Can someone advise how/where the Bootstrap loads Delay and the DelaySchedulers? where the invocation of Delay_class>>#initialize selects the delay scheduler. I need to determine whether during transition the Bootstrap might need to temporarily hop to a different scheduler, and how to provide the new structure in the Image for operational testing before switching. cheers -ben

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Hierarchy (roots) of package
by Stephane Ducasse April 20, 2018

April 20, 2018

Hi Given a package I would like to know the classes that are roots of hierarchy inside the package. Do we have something like that? Stef

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[ANN] Pharo Sprint Apr 20
by Marcus Denker April 19, 2018

April 19, 2018

Pharo Sprint Apr 20 https://association.pharo.org/event-2789579 We will organize a Pharo sprint / Moose dojo Apr 20 , starting at 10:00am. (Local Time Paris). Goals of this sprint: â¢ Pharo 7 issues Remote Sprint Remotely, you can join us on Discord. During the sprint, we synchronize local and remote Pharo sprinters: Known Local Sprint meetings Lille/France: It will be at the Inria Lille, Building B, third floor (RMoD offices). As the building is not open to the public, please contact us before if you plan to come

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Slot Questions
by Sean P. DeNigris April 19, 2018

April 19, 2018

Stateful traits inspired me to reread the flexible object layout paper and I came up with a few questions about slots: - What is the plan for tool support? For example, it seems that to make slots discoverable like any other class or message, "References to it" should include class definitions, which should be the primary slot client. - Why does IndexedSlot have a #name slot? I thought the index and name were "either or" for instVars. Thanks! ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Developers-f1294837.html

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[Pharo-Launcher] call for tests on Windows
by Christophe Demarey April 19, 2018

April 19, 2018

Hi, Regarding the various problems Pharo Launchers had on Windows, we worked on a new installer based on Advanced Installer [1] to avoid UAC (User Account Control) and write permissions problems. This new installer now installs Pharo Launcher in the userâs local app data folder (where for sure, he has write permissions). Pharo Launcher also now have its own icon and use its own name instead of Pharo. Also, the uninstaller now works as expected. Last but not least, the installer is now signed to avoid warning of Windows Defender. Thanks to Ben Coman who did the first version of the packaging using Advanced Installer (was NSIS). This version should also improve the launch of Pharo images on Windows. So, please could you install and test this new version: and report any problem with it? http://files.pharo.org/pharo-launcher/win-alpha/ We do not have windows users around so itâs hard to know if it works outside our tests boxes. Thanks, Christophe [1] https://www.advancedinstaller.com/

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Exception in Iceberg when removing selectors from anonymous classes
by Steven Costiou April 19, 2018

April 19, 2018

Hi, i downloaded yesterday the latest Pharo 7 and in a playground if you do: class := Object newAnonymousSubclass. (OK) class package. "a RPackage(_UnpackagedPackage)" (OK) class compile: 'test ^nil'. (OK) (class >> #test) package. "nil" (Surprising but no problem with any pharo version since yesterday) class removeSelector: #test. (Exception, see below) An exception is raised in IceSystemEventListener class because the method package is nil: handlePackagesChange: packages IceRepository registry do: [ :repository | | changed | changed := packages anySatisfy: [ :each | repository notifyPackageModified: each name ]. "(EACH IS NIL HERE)" changed ifTrue: [ Iceberg announcer announce: (IceRepositoryModified for: repository) ]] So to fix it, the package needs to be correctly set for each method compiled in an anonymous class, but should anonymous subclasses really raise events when adding/modifying/removing methods? Steven.

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