Squeak-dev September 2008

squeak-dev@lists.squeakfoundation.org

120 participants
118 discussions

becomeForward: alternative
by Rob Withers 19 Sep '08

19 Sep '08

I am trying to becomeForward with an object and a small integer. This of course doesn't work. Is there an alternative that would allow me to do this? thanks, Rob

5 10

Send NULL to a C function trough FFI
by Mariano Martinez Peck 19 Sep '08

19 Sep '08

Hi everybody! I need to call a C function with a NULL value in one of the parameter. I tried to send it a nil but I got an error in FFI when trying to call that function. The error is: "cannot coerce arguments". Obviously this error says FFI cannot map from nil to null. Do someone know how can I do this? many thanks, mariano

3 5

About Eliot FFi changes
by stephane ducasse 19 Sep '08

19 Sep '08

Hi all I discussed at ESUG with Eliot and he told us that he sent a while ago his changes to get a much nicer FFI implementation to the VM maintainers. Since then nothing really happen. So will the changes of eliot integrated or not in the VMs? Stef

6 8

[Smalltalks 2008] --- Latest news
by Andres Valloud 18 Sep '08

18 Sep '08

Hello, We would like to share the latest news about the Smalltalks 2008 conference. 1. We have opened the submission process for talks. The URL is below, http://neuquina.lifia.info.unlp.edu.ar:8001/Smalltalks-2008 The form can be found under the section "Talks". We are looking forward to hear about different types of presentations, whether they be industry, research or education related. The submission deadline is October 13th. 2. Furthermore, we have also opened the submission process for tutorials. The URL is the same as above, only the form is under the section "Tutorials". The deadline is also October 13th. 3. Finally, we would like to remind you that the coding contest rules and regulations, as well as the problem, will be published on October 1st. For more information check the section "Coding Contest" in the conference's web site. We look forward to see you at the conference! Smalltalks 2008 Organization Committee

1 0

CSV parser
by Markus Fritsche 18 Sep '08

18 Sep '08

Hello, has somebody got a CSV parser implemented in squeak? I was looking for something to parse CSV (excel exported) text files and did not find something so far. Kind regards, Markus

2 2

MonticelloConfiguration and Installer questions
by C. David Shaffer 18 Sep '08

18 Sep '08

I'm trying to move myself into the 21st century here by using Installer and MonticelloConfigurations. Great tools for image building, I think , but I'm having a couple of small problems. Version info: Squeak-3.9.1-7075 Insaller-Core-kph.222 Monticello-md.308 MonticelloConfigurations-stephaneducasse.38 1) I'm confused about how MC ".mcm" files are supposed to be published. It seems that that configuration browser always asks me for a repo and a file name. I've tried using the same name as an existing configuration (assuming I'd get a new version of that configuration) but, at least in a HTTP repo, and I just get an error (refuses to overwrite the existing file...doesn't seem like the correct behavior anyway). Are configurations not versioned like other MC entities? How do people work with changing configs? 2) Once I have a configuration published in a repo, opening the MC repo browser and clicking on the configuration file (select the configuration "package" then click on the .mcm file) gives me a walkback as per the attached file ClickOnMcmDebug.log. I've patched it but should I be working with a newer version of Monticello? If so, which one (I've tried a few but they have all caused me one problem or another with things that are working fine in my existing setup)? 3) Trying to install a configuration using Installer doesn't seem to work. The offending code is in Installer>>mcThing which tries to add the MCConfiguration to the loader thus: loader addVersion: version. This eventually results in an error (the configuration is added after all of its "dependencies"). I've patched Installer but I'm not sure if this is the right thing to do. See attached InstallerPatches-cds.3.cs. David Error: My subclass should have overridden #loadVersionInfo 16 September 2008 8:30:55 am VM: unix - a SmalltalkImage Image: Squeak3.9.1 [latest update: #7075] SecurityManager state: Restricted: false FileAccess: true SocketAccess: true Working Dir /home/shaffer/Source/Squeak/ProfitPortal/ImageBuilder Trusted Dir /home/shaffer/Source/Squeak/ProfitPortal/ImageBuilder/secure Untrusted Dir /home/shaffer/Source/Squeak/ProfitPortal/ImageBuilder/My Squeak MCMcmReader(Object)>>error: Receiver: a MCMcmReader Arguments and temporary variables: aString: 'My subclass should have overridden #loadVersionInfo' Receiver's instance variables: stream: a RWBinaryOrTextStream '( repository (''http://www.cdshaffer.com/housto...etc... package: nil info: nil definitions: nil dependencies: nil stepChildren: nil fileName: 'HitMysticR4Config7.mcm' MCMcmReader(Object)>>subclassResponsibility Receiver: a MCMcmReader Arguments and temporary variables: Receiver's instance variables: stream: a RWBinaryOrTextStream '( repository (''http://www.cdshaffer.com/housto...etc... package: nil info: nil definitions: nil dependencies: nil stepChildren: nil fileName: 'HitMysticR4Config7.mcm' MCMcmReader(MCVersionReader)>>loadVersionInfo Receiver: a MCMcmReader Arguments and temporary variables: Receiver's instance variables: stream: a RWBinaryOrTextStream '( repository (''http://www.cdshaffer.com/housto...etc... package: nil info: nil definitions: nil dependencies: nil stepChildren: nil fileName: 'HitMysticR4Config7.mcm' MCMcmReader(MCVersionReader)>>info Receiver: a MCMcmReader Arguments and temporary variables: Receiver's instance variables: stream: a RWBinaryOrTextStream '( repository (''http://www.cdshaffer.com/housto...etc... package: nil info: nil definitions: nil dependencies: nil stepChildren: nil fileName: 'HitMysticR4Config7.mcm' --- The full stack --- MCMcmReader(Object)>>error: MCMcmReader(Object)>>subclassResponsibility MCMcmReader(MCVersionReader)>>loadVersionInfo MCMcmReader(MCVersionReader)>>info - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - [] in MCHttpRepository(MCFileBasedRepository)>>loadVersionInfoFromFileNamed: {[:r | r info]} MCMcmReader(Object)>>ifNotNilDo: MCHttpRepository>>versionReaderForFileNamed:do: MCHttpRepository(MCFileBasedRepository)>>loadVersionInfoFromFileNamed: MCHttpRepository(MCFileBasedRepository)>>versionInfoFromFileNamed: MCFileRepositoryInspector>>versionInfo MCFileRepositoryInspector>>versionSummary MCFileRepositoryInspector(MCVersionInspector)>>summary PluggableTextMorphPlus(PluggableTextMorph)>>getText PluggableTextMorphPlus(PluggableTextMorph)>>update: PluggableTextMorphPlus>>update: [] in MCFileRepositoryInspector(Object)>>changed: {[:aDependent | aDependent update: aParameter]} DependentsArray>>do: MCFileRepositoryInspector(Object)>>changed: MCFileRepositoryInspector>>versionSelection: PluggableListMorphPlus(PluggableListMorph)>>changeModelSelection: PluggableListMorphPlus(PluggableListMorph)>>mouseUp: PluggableListMorphPlus(Morph)>>handleMouseUp: MouseButtonEvent>>sentTo: PluggableListMorphPlus(Morph)>>handleEvent: PluggableListMorphPlus(Morph)>>handleFocusEvent: [] in HandMorph>>sendFocusEvent:to:clear: {[ActiveHand := self. ActiveEvent := anEvent. result := focusHolder han...]} [] in PasteUpMorph>>becomeActiveDuring: {[aBlock value]} BlockContext>>on:do: PasteUpMorph>>becomeActiveDuring: HandMorph>>sendFocusEvent:to:clear: HandMorph>>sendEvent:focus:clear: HandMorph>>sendMouseEvent: HandMorph>>handleEvent: HandMorph>>processEvents [] in WorldState>>doOneCycleNowFor: {[:h | ActiveHand := h. h processEvents. capturingGesture := capturingGest...]} Array(SequenceableCollection)>>do: WorldState>>handsDo: WorldState>>doOneCycleNowFor: WorldState>>doOneCycleFor: PasteUpMorph>>doOneCycle [] in Project class>>spawnNewProcess {[[World doOneCycle. Processor yield. false] whileFalse. nil]} [] in BlockContext>>newProcess {[self value. Processor terminateActive]} 'From Squeak3.9.1 of 2 March 2008 [latest update: #7075] on 15 September 2008 at 8:34:32 pm'! !Installer methodsFor: 'monticello' stamp: 'cds 9/15/2008 20:15'! mcThing | loader files fileToLoad version count | loader := self classMCVersionLoader new. 1 to: self packages size do: [ :n | self logCR: 'finding ', self package asString, '...'. "several attempts to read files - repository readableFileNames sometimes fails" count := 0. fileToLoad := nil. [count := count + 1. (fileToLoad = nil) and:[ count < 5 ] ] whileTrue: [ files := mc readableFileNames asSortedCollection: self mcSortFileBlock. fileToLoad := files detect: self mcDetectFileBlock ifNone: [ nil ]. ]. version := mc versionFromFileNamed: fileToLoad. (version isKindOf: MCConfiguration) ifTrue: [^version] ifFalse:[version workingCopy repositoryGroup addRepository: mc]. self log: ' found ', version fileName, '...'. loader addVersion: version. packages removeFirst. ]. ^ loader ! !

3 14

Lisp50@OOPSLA -- Celebrating the 50th birthday of Lisp at OOPSLA 2008
by Robert Hirschfeld 18 Sep '08

18 Sep '08

Lisp50@OOPSLA ...celebrating the 50th birthday of Lisp at OOPSLA 2008 Monday, October 20, 2008 Nashville, Tennessee, USA co-located with OOPSLA 2008 participation is free for all OOPSLA participants registration for at least one conference day at OOPSLA is required URL: http:www.lisp50.org Feed: http://lisp50.blogspot.com Invited Speakers + William Clinger, Northeastern University, USA + Pascal Costanza, Vrije Universiteit Brussel, Belgium + Richard Gabriel, IBM Research, USA + Rich Hickey, Independent Consultant, USA + Alan Kay, Viewpoints Research Institute, USA + Fritz Kunze, USA + Ora Lassila, Nokia Research Center, USA + John McCarthy, USA + Kent Pitman, PTC, USA + Guy Steele, Sun Microsystems Laboratories, USA + Herbert Stoyan, University of Erlangen, Germany + Warren Teitelman, Google Inc., USA + JonL White, USA Titles, abstracts, biographies and schedule will be announced at the Lisp50 webpage and blog in the coming days and weeks. Abstract In October 1958, John McCarthy published one in a series of reports about his then ongoing effort for designing a new programming language that would be especially suited for achieving artificial intelligence. That report was the first one to use the name LISP for this new programming language. 50 years later, Lisp is still in use. This year we are celebrating Lisp's 50th birthday. OOPSLA 2008 is an excellent venue for such a celebration, because object-oriented programming benefited heavily from Lisp ideas and because OOPSLA 2008 takes place in October, exactly 50 years after the name Lisp has been used publicly for the first time. We will have talks by John McCarthy himself, and numerous other influential Lispers from the past five decades. We will also take a look at the next 50 years of Lisp. Organizers + Pascal Costanza, Vrije Universiteit Brussel, Belgium + Richard Gabriel, IBM Research, Hawthorne, NY, USA + Robert Hirschfeld, Hasso-Plattner-Institut, Potsdam, Germany + Guy Steele, Sun Microsystems Laboratories, Burlington, MA, USA Sponsored by ACM SIGPLAN Supported by + IBM Research + LispWorks Ltd + Franz Inc. + Clozure Associates -- Robert Hirschfeld hirschfeld(a)acm.org www.hirschfeld.org

1 0

Squeak leadership meeting minutes, 2008-09-17
by Craig Latta 18 Sep '08

18 Sep '08

Squeak leadership meeting minutes, 2008-09-17: present: Craig, Randal, Bert, Yoshiki Craig got new signed agreements from VPRI. Yoshiki has code for cleanup and for gathering contributors, will give to release team. Yoshiki will also work with the web team to put the right disclaimer for all future contributions. -C -- Craig Latta improvisational musical informaticist www.netjam.org Smalltalkers do: [:it | All with: Class, (And love: it)]

1 0

[ANN] MemoryAccess Slang alternative to sqMemoryAccess.h macros
by David T. Lewis 18 Sep '08

18 Sep '08

MemoryAccess is a small addition to VMMaker that provides a Smalltalk Slang implemention of the memory access macros (or static inline functions) that are normally defined in sqMemoryAccess.h. By implementing these methods in Smalltalk, they may be directly translated to C code by the Slang translator, with Slang inlining providing performance similar to that of traditional C preprocessor macros. The resulting C code is directly visible to C debuggers and profiling tools, and the use of C code rather than macros is helpful in exposing problems such as improper type declarations and 32bit/64bit word size issues. I did my testing only with VMMaker from SqueakSource, but I expect MemoryAccess to work correctly with any of the several VM development projects currently in play, given that a few relevant patches are collected from Mantis. Change set, platform diffs, and a more complete description are at http://wiki.squeak.org/squeak/6081 - Dave (cross-posted to squeak-dev and vm-dev, replies should go to vm-dev if possible)

1 0

[ANN] SqueakSVN
by Michael Perscheid 18 Sep '08

18 Sep '08

Hi list, I am very proud to announce "SqueakSVN". SqueakSVN is our last bachelor project and joins Squeak with version control offered by Subversion. Squeak developers take advantage of team programming and the benefits of Subversion's growing popularity and support. More details can be found on our web pages. - Project Description: http://www.swa.hpi.uni-potsdam.de/projects/ssvn/index.html - Source Code Download: http://www.swa.hpi.uni-potsdam.de/projects/ssvn/media/SqueakSVN.sar - Demonstration Video: http://www.swa.hpi.uni-potsdam.de/projects/ssvn/media/ssvn_en.mp4 Best Regards, Michael Perscheid on behalf of the Software Architecture Group Hasso-Plattner-Institut, Potsdam

13 23

← Newer
1
2
3
4
5
6
7
8
9
...
12
Older →