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[Pharo-project] Smalltalk on Bacon conf?
by Janko MivÅ¡ek Feb. 9, 2012

Feb. 9, 2012

Hi guys, Maybe this two day conference "by developers for developers" is another opportunity to show strengths of Smalltalk? Bacon http://devslovebacon.com/ BACON is a two-day, two-track technology conference on things developers love. 20-21 April, 2012 London. Thirty-two tasty sessions on topics including web development, machine learning, astronomy, and electronic music. Call for speakers Bacon is a conference by developers for developers. We are looking for a wide range of talks that focus on things developers love, whether digital or analogue. Are you a developer by day and electronic music superstar by night? Have you been working on some super interesting code and want to share your findings? Each speaker will have half an hour to deliver their talk and to gain the eternal admiration and adoration of their peers. Best regards Janko -- Janko MivÅ¡ek Aida/Web Smalltalk Web Application Server http://www.aidaweb.si

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[Pharo-project] FSFilesystemTest>>testReferenceTo fails on Windows
by Ben Coman Feb. 9, 2012

Feb. 9, 2012

I have loaded ConfigurationOfFilesystem v2.0.3 into Pharo-1.3-13315 on Windows 7. All tests are green except FSFilesystemTest>>testReferenceTo which hard codes the unix root folder... self assert: (filesystem referenceTo: '/') isRoot. However, guessing at the semantics of isRoot, simply changing this to... self assert: (filesystem referenceTo: 'C:\') isRoot. is not sufficient since... FSAbsolutePath>>isRoot ^ self size = 0 has size = 1. Looking into this further, it appears that the test for absolute path is incorrect in FSWindowStore>>pathFromString: aString. It is not the drive letter and colon that make it an absolute path, but whether the third character is a slash as well. Consider this sequence from a new command window ... C:\> mkdir C:\TestC1 C:\> cd TestC1 C:\TestC1> E: E:\> mkdir C:TestC2 E:\> C: C:\testC1> cd \testC1\testC2 C:\testC1\testC2> Definitively... [1] "Section 'Fully Qualified vs. Relative Paths' >> If a file name begins with only a disk designator but not the backslash after the colon, it is interpreted as a relative path to the current directory on the drive with the specified letter. " [1] http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247%28v=vs.85%… Without knowing the design philosophy or architecture of FS I'll just wildly speculate on on implementation.... by FSDiskStore having an instance variable "volume." For Unix this would remain empty. For Windows this would be 'C:' or 'D:' (without the slash). Then once this volume is stripped from the front of the path, the super method could be used, and (^ self size = 0) in FSAbsolutePath>>isRoot would be true. For example... FSWindowStore>>pathFromString: aString | class | class := ((aString at: 1) isLetter and: [(aString at: 2) = $:]) ifTrue: [ volume := (aString at: 1) asString , ":" . ^ super pathFromString: (aString copyFrom: 3 to: (aString size)). ] ^ super pathFromString: aString. FSStore>>pathFromString peek = $/ would also need to be replaced by peek = self delimiter. OR... perhaps... FSDiskStore>>pathFromString: aString self volumeFromString: aString. super pathFromString: ( aString copyFrom: (self volume size) + 1 to: (aString size) ). FSDiskStore>>volume volume ifNil: [ volume := '' ]. FSDiskStore>>volumeFromString ^self. FSWindowStore>>volumeFromString: aString ((aString at: 1) isLetter and: [(aString at: 2) = $:]) ifTrue: [ volume := (aString at: 1) asString , ":" . ] "also handle UNC volumes here" Also are UNC paths under consideration? Here the volume '\\server\share' might be extracted from the front of the path and isRoot would be True at this location. From [1] ... "The "\\?\" prefix can also be used with paths constructed according to the universal naming convention (UNC). To specify such a path using UNC, use the "\\?\UNC\" prefix. For example, "\\?\UNC\server\share", where "server" is the name of the computer and "share" is the name of the shared folder. These _ prefixes are not used as part of the path itself. _ " Anyway, that is as far as I can take it. Obviously lots of implications I haven't considered. Hope this helps. cheers, -ben

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[Pharo-project] [JOB, Academia] Postdoc Chile/France
by Marcus Denker Feb. 9, 2012

Feb. 9, 2012

Postdoc position in software engineering at University of Chile in cooperation with INRIA ===================================================================== A post-doctoral research position is available with the Pleiad Lab (University of Chile) and the RMoD Group (INRIA Lille Nord Europe). The position is targeted for research on software maintenance and software visualization. Validation of research hypotheses will be carried out using the Pharo programming language. Experience with it, or any other Smalltalk dialect, is a plus (but not necessary). The postdoctoral researcher will be expected to develop independent research initiatives within the scope of the position, design and contribute to the research experiments conducted by Pleiad and RMoD. There is no teaching duty associated with this position. Both Pleiad and RMoD offer a creative, productive and multicultural staff and students, with many collaboration opportunities. Pleiad and RMoD have an extensive expertise and an advanced infrastructure related to software analysis, data mining, testing, meta-modeling and language semantics. The position is funded by INRIA for a period of 12 or 18 months. In order to foster the collaboration between France and Chili, the candidate will have to share his time between Lille, France and Santiago, Chile. The candidate must hold a PhD in computer science, finished max 2 years ago. Contact Persons: Alexandre Bergel and StÃ©phane Ducasse More about... - PLEIAD: http://pleiad.dcc.uchile.cl - RMOD: http://rmod.lille.inria.fr - Pharo: http://www.pharo-project.org - Moose: http://www.moosetechnology.org (permanent link of this call: http://rmod.lille.inria.fr/web/pier/blog/2012-02-09) -- Marcus Denker -- http://marcusdenker.de

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[Pharo-project] [update 1.4] #14323
by Marcus Denker Feb. 9, 2012

Feb. 9, 2012

14323 ----- Issue 5239: Add explicit entries for squeaksource / gemstone repos http://code.google.com/p/pharo/issues/detail?id=5239 Issue 5237: as: LinkedList does not behave as expected http://code.google.com/p/pharo/issues/detail?id=5237 Issue 5266: Behavior >> methodDict should answer empty method dict rather than nil http://code.google.com/p/pharo/issues/detail?id=5266 -- Marcus Denker -- http://marcusdenker.de

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[Pharo-project] Reserve the dates: 24-25
by StÃ©phane Ducasse Feb. 9, 2012

Feb. 9, 2012

Hi guys after compiling all your answers and checking with the local constraints: Rooms and others like free days we will organize the Pharo conference the 24-25 May. We would need some help for setting up a simple web site for registration. Stef

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[Pharo-project] [COTDC] 107 - CommentNode
by sean＠clipperadams.com Feb. 8, 2012

Feb. 8, 2012

106 classes done 537 classes remaining Continuing in Compiler... Today: CommentNode Comment Of The Day Contest - One Day One Comment Rules: #1: Each day a not commented class is elected. Each day the best comment will be integrated with name of the author(s). #2: If you cannot comment it, deprecate it. Results: http://code.google.com/p/pharo/wiki/CommentOfTheDayContest p.s. this message was sent from a pharo image. Did you know you could easily do that?!

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Re: [Pharo-project] Trusting Trust
by Marcus Denker Feb. 8, 2012

Feb. 8, 2012

On Feb 8, 2012, at 10:39 AM, Philippe Marschall wrote: >> well I do not think so since we can all read the code. > > No, read the argument again. If the compiler is compromised and the other tools in the image are compromised you can't read the code because the tools don't display you the actual code. > But this stays the same with a boot-strap, as you will use a compomised compiler to bootstrap the bootstrap. There is nothing you can do against it. It's true for GCC or Java, too. Marcus -- Marcus Denker -- http://marcusdenker.de

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[Pharo-project] Some code
by Schwab,Wilhelm K Feb. 8, 2012

Feb. 8, 2012

Stef, I tried to push this to the inbox, but there was a problem, and "the administrator has been notified." Oh well. Attachments work. Attached are my FFI extensions, including non-aligned (with which I have been able to slide so far???) double arrays, catalog (schema) information for ODBC, value adapters, and some patching around weak collections to make a thread safe and self-cleaning sort of them - essential IMHO. None of this is particularly polished. Some parts are more heavily tested than others. Bill

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[Pharo-project] Migrating to Gemstone
by Benjamin Feb. 8, 2012

Feb. 8, 2012

Would it be possible to write some kind of import / migrate script for ss3.gemstone.com? The following lines copy the complete version history to an *existing* project on gemstone: Gofer new url: 'http:/squeaksource.com/FOO'; package: 'FOO'; package: 'BAR'; ... url: 'http://ss3.gemstone.com/ss/FOO'; push but that still requires me to define all packages I want to import *and* to create a new project on gemstone.... I would really love to see a one-click experience here? best ben & cami

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Feb. 8, 2012

Hi mariano I have the impression that methodDict should be redefined as you propose it because else it does not work well with the cannotInterpret hook. I suggest to redefine methodDict as follow. notice the cool comment!!! If this is ok -> open a bug entry. Behavior >> methodDict "The method dictionary of a class can be nil when we want to use the cannotInterpret: hook. Indeed when a class dictionary is nil, the VM sends the message cannotInterpret: to the receiver but starting the look up in the superclass. Now the system relies that when the message methodDict is sent to a class a method dictionary is returned. The implementation below makes sure that a method dictionary can be nilled but does not confuse the system." methodDict == nil ifTrue: [^ MethodDictionary new ]. ^ methodDict Stef

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