September 2010 - Pharo-dev - lists.pharo.org

[Pharo-project] Polymorph shell minimize
by Schwab,Wilhelm K Oct. 4, 2010

Oct. 4, 2010

Gary, Have you encountered problems after minimizing a standard window? IIRC, I had one get stuck in that state and was in an "ok, don't do that again" mood and (I think) forgot to mention it. It is not a stretch to think that I might have done something wrong in building the view. Bill

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[Pharo-project] XMLRPC Project - Progress Report
by GermÃ¡n Arduino Oct. 3, 2010

Oct. 3, 2010

Hi Everybody: I reorganized the XMLRPC packages, integrating the changes of Skrish (currently on PharoGoodies) renaming the packages in four categories: XMLRPC-Client-Core XMLRPC-Client-Tests XMLRPC-Server-Core XMLRPC-Server-Tests Next step: Build the following metacello configurations: ConfigurationOfXMLRPCClient ConfigurationOfXMLRPCServer ConfigurationOfXMLRPCAll I want to ask to any person wanting to contribute with XMLRPC project take contact with me to coordinate efforts. Cheers. -- ================================================= GermÃ¡n S. ArduinoÂ <gsa @ arsol.net>Â Â Twitter: garduino Arduino Software & Web HostingÂ Â http://www.arduinosoftware.com PasswordsProÂ http://www.passwordspro.com =================================================

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Re: [Pharo-project] Metacello Configuration Browser?
by Simon Denier Oct. 3, 2010

Oct. 3, 2010

On 28 sept. 2010, at 21:30, Mariano Martinez Peck wrote: > What I would love is a UI for GoferProjectLoader from Esteban. I mean, we have the apt-get but we need now synaptic :) > > And....if we plan to do what I say in the email about Pharo and Metacello, having something like that is very, VERY useful. From my point of view, even more than a Metacello browser. That's too different usages, which are complementary: GoferProjectLoader is for end-users, while I'm thinking more of a browser for developers, when they have to create a new release and check there configuration is consistent. Right now it's quite a pain, ask Jannik who did the 4.1 Moose :) > > Cheers > > Mariano > > 2010/9/28 Simon Denier <Simon.Denier(a)inria.fr> > > On 28 sept. 2010, at 15:14, Guillermo Polito wrote: > >> Okok, I saw there already exists a Configuration browser :P. But it can be reaally improved. > > > Which one are you talking about? The one in 1.2? Or on Squeaksource? > > There have been multiple efforts (GTMetaceller, MooseDevBrowser...) already to try and see what we would like to do in a browser. But there are also some performance issues with Metacello right now, which makes it impractical to browser config. which Dale and Alex have started to tackle them. > > Anyway, the latest effort (started during ESUG) is there: it is basically a rewrite of what have been done in the tools above (with still some missing parts). > > MCHttpRepository > location: 'http://www.squeaksource.com/MetacelloBrowser' > user: '' > password: '' > > > Note, it requires Glamour and is more of a testbed than a fully-supported tool for now. > > > >> >> On Tue, Sep 28, 2010 at 10:00 AM, Guillermo Polito <guillermopolito(a)gmail.com> wrote: >> I'm always reading people saying that metacello configurations are some kind of... overdesign. So, maybe we need a tool (or to modify monticello browser) wich allow us to: >> >> - know wich packages are core and dev. Sometimes using a dev image, I write things depending on Dev packages and I don't realize it. >> - create automatically or propose configurations depending on the actual state of the packages. >> - browse configurations nicely :). It's a new concept, we need a nice tool to support it. >> >> Maybe if the configs are easily created, we can have more of them, and we will be no longer so lazy. >> >> Cheers, >> Guille >> >> _______________________________________________ >> Pharo-project mailing list >> Pharo-project(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > -- > Simon > > > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project -- Simon

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[Pharo-project] OB Dev in Metacello
by Diogenes Moreira Oct. 3, 2010

Oct. 3, 2010

hi folks: anybody could tell how load the OB Dev Tools with Metacello. Thank in Advance..

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[Pharo-project] In Latest OB I cannot add a class variable
by Mariano Martinez Peck Oct. 3, 2010

Oct. 3, 2010

Hi Lukas. I am using latest OB + RB in PharoDev 1.1 and I have a problem trying to add a class variable. To reprpoduce 1) take any class, for example TestCase. 2) Go to the class side 3) add a class side variable. For example: TestCase class instanceVariableNames: 'history something' 4) The problem is in InteractiveAddClassChange >> definingSuperclass ^ Smalltalk globals at: self superclassName since self superclassName answers nil, because AddClassChange class >> superclassName className isNil ifTrue: [ self fillOutDefinition ]. ^ superclassName className prints -> #'Unknown Class' I attach PharoDebug.log also. Cheers Mariano

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[Pharo-project] Statistic tools in Pharo
by Alexandre Bergel Oct. 3, 2010

Oct. 3, 2010

Hi! Is there a statistic library in Pharo? Computing the correlation, linear regression, ... Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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[Pharo-project] "A Mentoring Course on Smalltalk" Code License
by DeNigris Sean Oct. 2, 2010

Oct. 2, 2010

I emailed Andres, the author, and he said "the code didn't have a license because I meant to put no restrictions on it... The MIT license is fine with me. In fact, I released the Hash Analysis Tool and Assessments under the MIT license already." Then he asked a great question: "Let me know what you need and I'll put it in. Or do you need that the book explicitly states the code mentioned therein is MIT?" I've been contacting many people to declare code as MIT. What "proof" is considered acceptable? I've been announcing it on the mailing list, so anyone could search back, contact me, and I could send them the email I received from the author, but that requires remembering the post, finding it, etc. What's the best way to go about this? License gurus? Sean

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[Pharo-project] Multiple finalizers per single object
by Igor Stasenko Oct. 1, 2010

Oct. 1, 2010

Hello, i'd like to raise this subject once more, because i don't like it (or don't understand?). In all scenarios, where i met the need to use finalization, a single finalizer is sufficient. Moreover, there is always a single object who controls a weak reference, and it never leaks it out, to prevent the case, when some other object may obtain a strong reference on it, making it permanently held in object memory. Multiple different finalizers for single object, from design point of view, means that you having two different, not related frameworks, which using same object, and want to do something when it dies. A scenario, where its possible and userful, still don't comes into my mind. In contrary, whenever i see a use of finalizers, its in most cases about graceful control over external resource, such as: - file - socket - external memory and i really don't see how multiple finalizers per single resource could do any good. Suppose one finalizer closing a file handle, while another one flushing it buffer cache. Now, how you going to ensure, that one finalizer will execute first, before another one? And what if third framework comes into play and wants to add another finalizer on top of that, which should do something in the middle between flushing a cache and closing file handle? >From the above, the only conclusion can be made: use a single finalizer, and put all logic & operation ordering into it. And also, prevent leakage of object pointer (such as file handle) outside of your model, otherwise it may cause harm. That's why i think a current WeakRegistry model provoking bad design practices. I think a better behavior would be to raise an error, if something wants to register finalizer twice for a single object. -- Best regards, Igor Stasenko AKA sig.

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[Pharo-project] NativeBoost and Cog. A working protype.
by Igor Stasenko Oct. 1, 2010

Oct. 1, 2010

Hello, just wanna tell you that i adopted NativeBoost under Cog and have a first running prototype. It still lacks callbacks support, but its already can be used for callouts and to run native code. NativeBoost-CogPlugin does not requires patched for platform-specific code. Just load it into Cog VMMaker image, generate & build vm and you done! Thanks Eliot for providing necessary bits for controlling memory execution protection. The NativeBoost-CogPlugin will have some additional functionality, comparing to its Squeak VM cousin. - it using a primitive failure codes, so when primitive fails , you can determine why and where your native call fails. The primitive error codes still not handled/used by language side, so its a work to do: - a marchalling code can use error codes to report that primitive fails due to coercion error, and it even will tell which exactly argument failed to coerce. - of course, you will be able to add own custom error codes, and handle them as you like to. By default, a plugin could report following problems: "execution of native code is not enabled by plugin" ErrNotEnabled "failed to find a native code for primitive method" ErrNoNativeCodeInMethod "native code generated for different platform" ErrInvalidPlatformId I wanna say thanks to Eliot for providing primitive fail codes in VM. A proper error handling is an important part of infrastructure-level project (such as NativeBoost), since then people who using it, can quickly determine what's wrong with their code. -- Best regards, Igor Stasenko AKA sig.

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Oct. 1, 2010

mariano can you open a bug entry. Stef On Sep 26, 2010, at 6:21 PM, Mariano Martinez Peck wrote: > Hi. I am loading OCompletion in PharoCore 1.1 while building the Dev image. If I just take a core image, load OCompletion and run tests, they take a lot of time, not acceptable. > > Now....if I build a Dev image (with OB, RB, etc) and at the end I try to run OCompletion tests, the tests takes HOURS. The image seems frozen, but actually is working. If I interrupt I see the problem is in > > ECUntypedModel >> initializeSelectors > > the part of > > > [ Smalltalk environment keysDo: > [ :each | > selectors add: (ECGlobalEntry > contents: each > type: #globalVar) ]. > > > takes a lot of time > > and it seems related to "ECPreferences caseSensitive" and "ECUntypedModel >> resetSelectors" > > I don't know what else to say. To reproduce, take a PharoCore 1.1 and evaluate: > > Gofer new > squeaksource: 'MetacelloRepository'; > package: 'ConfigurationOfOCompletion'; > load. > > (ConfigurationOfOCompletion project version: '1.2') load: 'Core Tests' > > Then, run all the tests inside OCompletionTests. You will see that after running some threads....it will look like frozen. There, do an interrupt and analize. > > IF you do that for a Dev image, it takes muuuuch more. I guess this is because "Smalltalk environment keys" will have muuuuuch more elements than a simple core. > > Anyway, help is appreciated. > > Cheers > > Mariano > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

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