Squeak-dev April 2013

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Fwd: IWST 2013 Call for papers
by Alain Plantec 27 Apr '13

27 Apr '13

Begin forwarded message: > From: Alain Plantec <alain.plantec(a)univ-brest.fr> > Subject: IWST 2013 Call for papers > Date: 27 avril 2013 13:59:40 UTC+02:00 > To: esug-list(a)lists.esug.org > Cc: Alain Plantec <alain.plantec(a)univ-brest.fr>, Loic Lagadec <lagadec(a)univ-brest.fr>, Board ESUG <board(a)esug.org> > > Dear smalltalkers, > > You will find below the CFP for the International Workshop on Smalltalk Technologies 2013. > Please disseminate through your own mailing lists. We also hope you will be able to submit some of your contributions. > > Best regards, > Program Co-chairs > Loïc Lagadec, Alain Plantec > Lab-STICC/CNRS, Université de Bretagne Occidentale > > ---------------------------------------------------------------------------- > > International Workshop on Smalltalk Technologies 2013 > > September 10, 2013 > Annecy, France > > ESUG 2013 joint event > > -- Important dates -- > > Submission deadline: June 15, 2013 > > Notification deadline: July 15, 2013 > > Workshop : September 10, 2013 > > All accepted papers will be published in ACM DL (ACM In-Cooperation to be confirmed). > > > -- Goals and scopes -- > > The goals of the workshop is to create a forum around advances or experience in Smalltalk and to trigger discussions and exchanges of ideas. Participants are invited to submit research articles. We will not enforce any length restriction. However we expect papers of two kinds: > > Short position papers describing emerging ideas. > Long research papers with deeper description of experiments and of research results. > Topics > > We welcome contributions on all aspects, theoretical as well as practical, of Smalltalk related topics such as: > • Aspect-oriented programming, > • Design patterns, > • Experience reports, > • Frameworks, > • Implementation, new dialects or languages implemented in Smalltalk, > • Interaction with other languages, > • Meta-programming and Meta-modeling, > • Tools > > Links home page: http://www.esug.org/Conferences/2013/InternationalWorkshop > > Publication Both submissions and final papers must be prepared using the ACM SIGPLAN 10 point format. Templates for Word and LaTeX are available at http://www.acm.org/sigs/sigplan/authorInformation.htm. This site also contains links to useful informations on how to write effective submissions. > > Program chairs Loïc Lagadec and Alain Plantec (LabSticc CACS/CNRS, University of Brest, France) >

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Daily Commit Log
by commits＠source.squeak.org 27 Apr '13

27 Apr '13

Changes to Trunk (http://source.squeak.org/trunk.html) in the last 24 hours: http://lists.squeakfoundation.org/pipermail/packages/2013-April/005874.html Name: Collections-fbs.513 Ancestors: Collections-bf.512 This fixes the recent report of an Ubuntu 13.04 machine not being able to save a class comment. https://bugzilla.redhat.com/show_bug.cgi?id=956376 ============================================= http://lists.squeakfoundation.org/pipermail/packages/2013-April/005875.html Name: Collections-fbs.514 Ancestors: Collections-fbs.513 Revert the over-eager (attempt at a) fix. =============================================

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Re: [squeak-dev] The Trunk: Collections-fbs.514.mcz
by Eliot Miranda 27 Apr '13

27 Apr '13

Tghe problem is a missing flush. Putting it in nextChunkPut: is a hack. Putting it in clients is more work, but the correct place. So e.g. classComment: aString stamp: aStamp "Store the comment, aString or Text or RemoteString, associated with the class we are organizing. Empty string gets stored only if had a non-empty one before." | ptr header file oldCommentRemoteStr | (aString isKindOf: RemoteString) ifTrue: [SystemChangeNotifier uniqueInstance classCommented: self. ^ self organization classComment: aString stamp: aStamp]. oldCommentRemoteStr := self organization commentRemoteStr. (aString size = 0) & (oldCommentRemoteStr == nil) ifTrue: [^ self organization classComment: nil]. "never had a class comment, no need to write empty string out" ptr := oldCommentRemoteStr ifNil: [0] ifNotNil: [oldCommentRemoteStr sourcePointer]. SourceFiles ifNotNil: [(file := SourceFiles at: 2) ifNotNil: [file setToEnd; cr; nextPut: $!. "directly" "Should be saying (file command: 'H3') for HTML, but ignoring it here" header := String streamContents: [:strm | strm nextPutAll: self name; nextPutAll: ' commentStamp: '. aStamp storeOn: strm. strm nextPutAll: ' prior: '; nextPutAll: ptr printString]. file nextChunkPut: header]]. self organization classComment: (RemoteString newString: aString onFileNumber: 2) stamp: aStamp. SystemChangeNotifier uniqueInstance classCommented: self. needs to read classComment: aString stamp: aStamp "Store the comment, aString or Text or RemoteString, associated with the class we are organizing. Empty string gets stored only if had a non-empty one before." | ptr header file oldCommentRemoteStr | (aString isKindOf: RemoteString) ifTrue: [SystemChangeNotifier uniqueInstance classCommented: self. ^ self organization classComment: aString stamp: aStamp]. oldCommentRemoteStr := self organization commentRemoteStr. (aString size = 0) & (oldCommentRemoteStr == nil) ifTrue: [^ self organization classComment: nil]. "never had a class comment, no need to write empty string out" ptr := oldCommentRemoteStr ifNil: [0] ifNotNil: [oldCommentRemoteStr sourcePointer]. SourceFiles ifNotNil: [(file := SourceFiles at: 2) ifNotNil: [file setToEnd; cr; nextPut: $!. "directly" "Should be saying (file command: 'H3') for HTML, but ignoring it here" header := String streamContents: [:strm | strm nextPutAll: self name; nextPutAll: ' commentStamp: '. aStamp storeOn: strm. strm nextPutAll: ' prior: '; nextPutAll: ptr printString]. file nextChunkPut: header; flush]]. self organization classComment: (RemoteString newString: aString onFileNumber: 2) stamp: aStamp. SystemChangeNotifier uniqueInstance classCommented: self. i.e. file nextChunkPut: header => file nextChunkPut: header; flush On Fri, Apr 26, 2013 at 1:30 PM, <commits(a)source.squeak.org> wrote: > Frank Shearar uploaded a new version of Collections to project The Trunk: > http://source.squeak.org/trunk/Collections-fbs.514.mcz > > ==================== Summary ==================== > > Name: Collections-fbs.514 > Author: fbs > Time: 26 April 2013, 9:30:07.501 pm > UUID: 26b584d4-1ad3-40b0-b9b1-d888e122116e > Ancestors: Collections-fbs.513 > > Revert the over-eager (attempt at a) fix. > > =============== Diff against Collections-fbs.513 =============== > > Item was changed: > ----- Method: WriteStream>>nextChunkPut: (in category 'fileIn/Out') ----- > nextChunkPut: aString > "Append the argument, aString, to the receiver, doubling embedded > terminators." > > | i remainder terminator | > terminator := $!!. > remainder := aString. > [(i := remainder indexOf: terminator) = 0] whileFalse: > [self nextPutAll: (remainder copyFrom: 1 to: i). > self nextPut: terminator. "double imbedded terminators" > remainder := remainder copyFrom: i+1 to: remainder size]. > self nextPutAll: remainder. > aString includesUnifiedCharacter ifTrue: [ > self nextPut: terminator. > self nextPutAll: ']lang['. > aString writeLeadingCharRunsOn: self. > ]. > self nextPut: terminator. > - self flush. > ! > > > -- best, Eliot

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The Trunk: Collections-fbs.514.mcz
by commits＠source.squeak.org 26 Apr '13

26 Apr '13

Frank Shearar uploaded a new version of Collections to project The Trunk: http://source.squeak.org/trunk/Collections-fbs.514.mcz ==================== Summary ==================== Name: Collections-fbs.514 Author: fbs Time: 26 April 2013, 9:30:07.501 pm UUID: 26b584d4-1ad3-40b0-b9b1-d888e122116e Ancestors: Collections-fbs.513 Revert the over-eager (attempt at a) fix. =============== Diff against Collections-fbs.513 =============== Item was changed: ----- Method: WriteStream>>nextChunkPut: (in category 'fileIn/Out') ----- nextChunkPut: aString "Append the argument, aString, to the receiver, doubling embedded terminators." | i remainder terminator | terminator := $!!. remainder := aString. [(i := remainder indexOf: terminator) = 0] whileFalse: [self nextPutAll: (remainder copyFrom: 1 to: i). self nextPut: terminator. "double imbedded terminators" remainder := remainder copyFrom: i+1 to: remainder size]. self nextPutAll: remainder. aString includesUnifiedCharacter ifTrue: [ self nextPut: terminator. self nextPutAll: ']lang['. aString writeLeadingCharRunsOn: self. ]. self nextPut: terminator. - self flush. !

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Community Hangout tomorrow
by tim Rowledge 26 Apr '13

26 Apr '13

Don't forget the Squeak Community Hangout tomorrow! https://plus.google.com/events is the main portal. If you're an early-bird (for example rather to the sunward of PDT) then feel free to start it off yourself and invite us all. tim -- tim Rowledge; tim(a)rowledge.org; http://www.rowledge.org/tim Shift to the left! Shift to the right! Pop up, push down, byte, byte, byte!

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Re: [Vm-dev] Bug 956376 ??? Can not edit class comments
by Frank Shearar 26 Apr '13

26 Apr '13

On 25 April 2013 15:35, Frank Shearar <frank.shearar(a)gmail.com> wrote: > On 25 April 2013 13:54, David T. Lewis <lewis(a)mail.msen.com> wrote: >> >> On Thu, Apr 25, 2013 at 02:18:22PM +0200, Bert Freudenberg wrote: >>> >>> This didn't sound like a VM problem at first, but according to the discussion it is: >>> >>> https://bugzilla.redhat.com/show_bug.cgi?id=956376 >>> >>> Any idea? >>> >> >> On my 64-bit Linux with an interpreter VM compiled in 64-bit, and using >> Squeak - no problem. With a 32-bit interpreter - no problem. With Cog - >> again, no problem. >> >> I edited the class comment for class Array in each case. >> >> Dave > > "Error: RemoteString past end of file" can indicate a broken/damages > changes file. > > It does when I get the error, at least. Usually that happens when I > have to hard-kill an image that's stored state in the changes file. > Restarting the image means there's a mismatch somehow in the state > between the image and the changes file. Once you get one of these > you're nearly completely hosed: you can't file things out, for > instance. For those not following the Pharo list, it looks like the root cause is that the glibc in Ubuntu 13.04 doesn't immediately write new content out to the file. Thus you can "write" to the file, and then read from the file, only your RemoteString starts off the end of the file. The fix is to make WriteStream >> #nextPutChunk: call "self flush". I've pushed a 4.5 fix to trunk, but have not yet done the same for the 4.4 and 4.3 update streams. frank

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Re: [squeak-dev] The Trunk: Collections-fbs.513.mcz
by Bert Freudenberg 26 Apr '13

26 Apr '13

On 2013-04-26, at 14:05, commits(a)source.squeak.org wrote: > Frank Shearar uploaded a new version of Collections to project The Trunk: > http://source.squeak.org/trunk/Collections-fbs.513.mcz > > ==================== Summary ==================== > > Name: Collections-fbs.513 > Author: fbs > Time: 26 April 2013, 11:13:00.656 am > UUID: dba4f808-6844-414c-a5bf-5cda0cf4e342 > Ancestors: Collections-bf.512 > > This fixes the recent report of an Ubuntu 13.04 machine not being able to save a class comment. > > https://bugzilla.redhat.com/show_bug.cgi?id=956376 > > =============== Diff against Collections-bf.512 =============== > > Item was changed: > ----- Method: WriteStream>>nextChunkPut: (in category 'fileIn/Out') ----- > nextChunkPut: aString > "Append the argument, aString, to the receiver, doubling embedded terminators." > > | i remainder terminator | > terminator := $!!. > remainder := aString. > [(i := remainder indexOf: terminator) = 0] whileFalse: > [self nextPutAll: (remainder copyFrom: 1 to: i). > self nextPut: terminator. "double imbedded terminators" > remainder := remainder copyFrom: i+1 to: remainder size]. > self nextPutAll: remainder. > aString includesUnifiedCharacter ifTrue: [ > self nextPut: terminator. > self nextPutAll: ']lang['. > aString writeLeadingCharRunsOn: self. > ]. > self nextPut: terminator. > + self flush. > ! This just papers over the problem, does not fix it. We need to figure out what the problem is on the VM side. IMHO this should not be in trunk. - Bert -

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The Trunk: Collections-fbs.513.mcz
by commits＠source.squeak.org 26 Apr '13

26 Apr '13

Frank Shearar uploaded a new version of Collections to project The Trunk: http://source.squeak.org/trunk/Collections-fbs.513.mcz ==================== Summary ==================== Name: Collections-fbs.513 Author: fbs Time: 26 April 2013, 11:13:00.656 am UUID: dba4f808-6844-414c-a5bf-5cda0cf4e342 Ancestors: Collections-bf.512 This fixes the recent report of an Ubuntu 13.04 machine not being able to save a class comment. https://bugzilla.redhat.com/show_bug.cgi?id=956376 =============== Diff against Collections-bf.512 =============== Item was changed: ----- Method: WriteStream>>nextChunkPut: (in category 'fileIn/Out') ----- nextChunkPut: aString "Append the argument, aString, to the receiver, doubling embedded terminators." | i remainder terminator | terminator := $!!. remainder := aString. [(i := remainder indexOf: terminator) = 0] whileFalse: [self nextPutAll: (remainder copyFrom: 1 to: i). self nextPut: terminator. "double imbedded terminators" remainder := remainder copyFrom: i+1 to: remainder size]. self nextPutAll: remainder. aString includesUnifiedCharacter ifTrue: [ self nextPut: terminator. self nextPutAll: ']lang['. aString writeLeadingCharRunsOn: self. ]. self nextPut: terminator. + self flush. !

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Only 5 failing tests! (was Re: [squeak-dev] Tests broken because of ToolSet dependencies)
by Frank Shearar 26 Apr '13

26 Apr '13

On 25 April 2013 07:41, Frank Shearar <frank.shearar(a)gmail.com> wrote: > On 25 April 2013 03:31, Levente Uzonyi <leves(a)elte.hu> wrote: >> On Wed, 24 Apr 2013, Frank Shearar wrote: >> >>> So I wrote a very basic CommandLineToolSet (please! save me and >>> suggest a better name!). It can "debug" errors by dumping a stack >>> trace to stderr and kill the image. >>> >>> So now the CI tests use this, and the following tests fail: >>> >>> ToolsTests.Browser.BrowseTest.testBrowseClass >>> ToolsTests.Browser.BrowseTest.testBrowseHierarchyClass >>> ToolsTests.Browser.BrowseTest.testBrowseHierarchyInstance >>> ToolsTests.Browser.BrowseTest.testBrowseHierarchyMataclass >>> ToolsTests.Browser.BrowseTest.testBrowseInstance >>> ToolsTests.Browser.BrowseTest.testBrowseMetaclass >>> ToolsTests.Browser.DependencyBrowserTest.testBrowse >>> ToolsTests.Inspector.WeakSetInspectorTest.testSymbolTableM6812 >>> >>> That's because these tests actually want the StandardToolSet. One idea >>> that occurs to me is to use a #setUp/#tearDown combo to re-set the >>> ToolSet. That comes at the risk of things blowing up in a test causing >>> CI jobs to hang; the very reason I wrote the CommandLineToolSet. >>> >>> So before I do that, any other ideas? Essentially I'm looking for a >>> scoped ToolSet change. I think? >> >> >> What about making CommandLineToolSet a subclass of StandardToolSet? That way >> everything would work unless there's an error. > > Yes, I suppose I could do that. It would certainly scratch my current > itch. Thanks! > > The other option is to fill out the ToolSet protocol with empty > methods. But that wouldn't be very least-surprise-ish. Yep, we're down to 5 failing tests! Only one of those is Environments related - Tests.Release.ReleaseTest.testMethodsWithUnboundGlobals - which times out because it's trying to concatenate the world's biggest string. Actually, Tests.Bugs.ClassRemovalTest.testClassRemovalAndRecompilationWontCreateDuplicateVariableBinding might be Environment related. > frank > >> Levente >> >>> >>> frank >>> >>> >>

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Small(talk) opportunities
by DeNigris Sean 26 Apr '13

26 Apr '13

From time to time, I lead small commercial Smalltalk projects, parts of which I'm able to delegate. If you're interested in more details / participating when these come up, email me and I'll keep you in mind. Cheers, Sean

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