February 2016 - Pharo-dev - lists.pharo.org

[pharo-project/pharo-core] 3d6dce: 50569
by GitHub Feb. 8, 2016

Feb. 8, 2016

Branch: refs/heads/5.0 Home: https://github.com/pharo-project/pharo-core Commit: 3d6dce043ce1c1e48b9027eb2d0f82648117a26c https://github.com/pharo-project/pharo-core/commit/3d6dce043ce1c1e48b9027eb… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2016-02-08 (Mon, 08 Feb 2016) Changed paths: M ConfigurationOfGTDebugger.package/ConfigurationOfGTDebugger.class/instance/versions/version16_.st M ConfigurationOfGTInspectorCore.package/ConfigurationOfGTInspectorCore.class/instance/versions/version29_.st M ConfigurationOfGTSpotter.package/ConfigurationOfGTSpotter.class/instance/versions/version112_.st M ConfigurationOfGToolkitCore.package/ConfigurationOfGToolkitCore.class/instance/versions/version310_.st M ConfigurationOfGlamourCore.package/ConfigurationOfGlamourCore.class/instance/versions/version40_.st R GT-SpotterExtensions-Core.package/extension/TBehavior/class/gtExampleAllSubclasses.st R GT-SpotterExtensions-Core.package/extension/TBehavior/class/gtExampleClassVariables.st R GT-SpotterExtensions-Core.package/extension/TBehavior/class/gtExampleInstanceVariables.st R GT-SpotterExtensions-Core.package/extension/TBehavior/class/gtExampleSuperclasses.st R GT-SpotterExtensions-Core.package/extension/TBehavior/class/gtExampleTraitComposition.st R GT-SpotterExtensions-Core.package/extension/TBehavior/class/gtExampleTraitUsers.st R GT-SpotterExtensions-Core.package/extension/TBehavior/class/gtExampleTraits.st R GT-SpotterExtensions-Core.package/extension/TClassDescription/class/gtExamplePackage.st M GTInspector-Help.package/GTInspectorHelp.class/README.md M ScriptLoader50.package/ScriptLoader.class/instance/load primitives/loadConfiguration_version_.st R ScriptLoader50.package/ScriptLoader.class/instance/pharo - scripts/script50568.st A ScriptLoader50.package/ScriptLoader.class/instance/pharo - scripts/script50569.st R ScriptLoader50.package/ScriptLoader.class/instance/pharo - updates/update50568.st A ScriptLoader50.package/ScriptLoader.class/instance/pharo - updates/update50569.st M ScriptLoader50.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st Log Message: ----------- 50569 GTInspector-Help http://files.pharo.org/image/50/50569.zip

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[pharo-project/pharo-core]
by GitHub Feb. 8, 2016

Feb. 8, 2016

Branch: refs/tags/50570 Home: https://github.com/pharo-project/pharo-core

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[pharo-project/pharo-core] 554291: 50570
by GitHub Feb. 8, 2016

Feb. 8, 2016

Branch: refs/heads/5.0 Home: https://github.com/pharo-project/pharo-core Commit: 554291a8627653a9e9d955d6066cdb7d2ef3f4d3 https://github.com/pharo-project/pharo-core/commit/554291a8627653a9e9d955d6… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2016-02-08 (Mon, 08 Feb 2016) Changed paths: M Morphic-Base.package/StringMorph.class/instance/accessing/backgroundColor.st A Morphic-Base.package/StringMorph.class/instance/accessing/contrastingBackgroundColor.st M Refactoring-Critics.package/RBSmalllintChecker.class/class/instance creation/runRule_onEnvironment_.st M Refactoring-Critics.package/RBSmalllintChecker.class/instance/actions/run.st M Refactoring-Critics.package/RBTransformationRule.class/instance/accessing/problemCount.st M Refactoring-Critics.package/RBTransformationRule.class/instance/running/checkMethod_.st M Refactoring-Critics.package/RBTransformationRule.class/instance/testing/isEmpty.st R ScriptLoader50.package/ScriptLoader.class/instance/pharo - scripts/script50569.st A ScriptLoader50.package/ScriptLoader.class/instance/pharo - scripts/script50570.st R ScriptLoader50.package/ScriptLoader.class/instance/pharo - updates/update50569.st A ScriptLoader50.package/ScriptLoader.class/instance/pharo - updates/update50570.st M ScriptLoader50.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st Log Message: ----------- 50570 16814 Critics Browser seriously broken https://pharo.fogbugz.com/f/cases/16814 17545 StringMorph background part2 https://pharo.fogbugz.com/f/cases/17545 http://files.pharo.org/image/50/50570.zip

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[pharo-project/pharo-core]
by GitHub Feb. 8, 2016

Feb. 8, 2016

Branch: refs/tags/50569 Home: https://github.com/pharo-project/pharo-core

1 0

[pharo-project/pharo-core]
by GitHub Feb. 8, 2016

Feb. 8, 2016

Branch: refs/tags/50568 Home: https://github.com/pharo-project/pharo-core

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[pharo-project/pharo-core] 9a770f: 50568
by GitHub Feb. 8, 2016

Feb. 8, 2016

Branch: refs/heads/5.0 Home: https://github.com/pharo-project/pharo-core Commit: 9a770ffe7387272747c7bf65fc8c0b758371423f https://github.com/pharo-project/pharo-core/commit/9a770ffe7387272747c7bf65… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2016-02-08 (Mon, 08 Feb 2016) Changed paths: M Monticello.package/MethodAddition.class/instance/notifying/notifyObservers.st M Morphic-Base.package/HaloMorph.class/instance/private/addNameBeneath_string_.st R Morphic-Base.package/NameStringInHalo.class/README.md R Morphic-Base.package/NameStringInHalo.class/definition.st R Morphic-Base.package/NameStringInHalo.class/instance/drawing/drawOn_.st M Morphic-Base.package/StringMorph.class/definition.st A Morphic-Base.package/StringMorph.class/instance/accessing/backgroundColor.st A Morphic-Base.package/StringMorph.class/instance/accessing/backgroundColor_.st M Morphic-Base.package/StringMorph.class/instance/drawing/drawOn_.st M Morphic-Base.package/StringMorph.class/instance/initialization/initialize.st M ScriptLoader50.package/ScriptLoader.class/instance/load primitives/loadConfiguration_version_.st R ScriptLoader50.package/ScriptLoader.class/instance/pharo - scripts/script50567.st A ScriptLoader50.package/ScriptLoader.class/instance/pharo - scripts/script50568.st R ScriptLoader50.package/ScriptLoader.class/instance/pharo - updates/update50567.st A ScriptLoader50.package/ScriptLoader.class/instance/pharo - updates/update50568.st M ScriptLoader50.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st M Traits.package/TClassDescription.class/instance/compiling/compile_classified_withStamp_notifying_logSource_.st A Traits.package/TClassDescription.class/instance/compiling/noteCompilationOfMethod_meta_.st Log Message: ----------- 50568 17531 add #noteCompilationOfMethod:meta: https://pharo.fogbugz.com/f/cases/17531 13209 StringMorph background https://pharo.fogbugz.com/f/cases/13209 http://files.pharo.org/image/50/50568.zip

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Best way to access icons?
by Aliaksei Syrel Feb. 8, 2016

Feb. 8, 2016

Hi For ages to access an icon we used: > Smalltalk ui icons protocolPrivateIcon Smalltalk ui icons returns an instance of ThemeIcons. After refactoring (case https://pharo.fogbugz.com/f/cases/16651 <https://pharo.fogbugz.com/f/cases/16651>) all methods to access icon (for example protocolPrivateIcon) were removed. ThemeIcons>>#doesNotUnderstand: aMessage converts message sent to iconNamed: aMessage selector which works. BUT we have this all over the image: [image: Inline image 1] So, what is the best practice to access icons to use in application? Cheers, Alex

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[ANN] We are in "code freeze" for Pharo 5
by Esteban Lorenzano Feb. 8, 2016

Feb. 8, 2016

Hi, We are on âjust bugfixesâ since some time nowâ¦ I delayed the announcement because Epicea still needs to enter and we didnât manage to include it yet. But wellâ¦ with the exception of Epicea, no new features will be included un Pharo 5â¦ just bugfixes (and we have a lot of bugfixes incomingâ¦ this release will be hard :( ) cheers, Esteban

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[bloc] a little demo
by stepharo Feb. 6, 2016

Feb. 6, 2016

Hi guys aleksei, glenn, alain shaked deeply bloc and slowly bloc is getting backing shape. We are moving now the discussions to the pharo-dev mailing-list https://drive.google.com/file/d/0B-bMBVDOi3oTTDBxNmdfS0o3S3c/view?pref=2&pl…

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Simple versus Recursive Mutexes
by Ben Coman Feb. 6, 2016

Feb. 6, 2016

While we are in the process of revising the Mutex infrastructure [1] to use dedicated primitives rather than rely on counting via a semaphore, I want to raise the question of simple versus recursive mutexes. This isn't something I know much about, except that some people strongly believe recursive mutexes are evil, including David Butenhof who apparently was the guy who added recursive mutexes to POSIX "on a dare [...] but nobody was supposed to use recursive mutexes." [1]. There are two interesting discussion on stockoverflow [2][3]. But btw I disagree with Tall Jeff [3] says "The difference between a recursive and non-recursive mutex has to do with ownership. " I think he confuses a simple-mutex and binary-semaphore, as do a some commenters. "Prefer Simple Mutex Over Recursive Mutex" [4] demonstrates some performance considerations and advises "a recursive mutex is dangerous because you lose sense of locking scope. It costs more than a simple mutex." "Recursive Locks Will Kill You!" [5] provides some thread safety guidelines. Finally, there is a paper "Ad Hoc Synchronization Considered harmful" [6], which I haven't read yet since I wanted to get this post out before heading to bed, but I hope to tomorrow. [1] http://www.zaval.org/resources/library/butenhof1.html [2] http://stackoverflow.com/questions/2415082/when-to-use-recursive-mutex [3] http://stackoverflow.com/questions/187761/recursive-lock-mutex-vs-non-recur… [4] http://askldjd.com/2009/10/26/prefer-simple-mutex-over-recursive-mutex/ [5] http://www.fieryrobot.com/blog/2008/10/14/recursive-locks-will-kill-you/ [6] https://www.usenix.org/legacy/event/osdi10/tech/full_papers/Xiong.pdf So our existing Mutex implementation happens to be recursive, and I'm not suggesting we change that. However if we should consider *not* baking the *assumption* of recursion into the primitives, so the same primitives could *also* be used for a SimpleMutex class. The logic to provide recursion for Mutex is only [ owner = activeProcess ] which is easily done in-image. So I propose introducing aquire/release primitives based off the existing critical section primitives with the recursion removed. cheers -ben

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