February 2015 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] The evil twin in 40516

by kilon alios

I can explain why, its the language you use. For example this feature, I have no clue what you guys are talking about. For people to be impressed first they need to understand what they should be impressed with. On Fri, Feb 27, 2015 at 2:12 PM, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > > On Fri, Feb 27, 2015 at 12:35 PM, Tudor Girba <tudor(a)tudorgirba.com> > wrote: > >> So many cool things! >> >> We cannot even imagine at this point what all these little conceptual >> things will bring in downstream projects. This is amazing. >> > > Interestingly, the world view of most people is different... they never > realise this, they seem to fundamentally not see this > connection. I have not yet found out why... > > Marcus > > >

Feb. 27, 2015

Re: [Pharo-dev] The evil twin in 40516

by Marcus Denker

On Fri, Feb 27, 2015 at 12:35 PM, Tudor Girba <tudor(a)tudorgirba.com> wrote: > So many cool things! > > We cannot even imagine at this point what all these little conceptual > things will bring in downstream projects. This is amazing. > Interestingly, the world view of most people is different... they never realise this, they seem to fundamentally not see this connection. I have not yet found out why... Marcus

Feb. 27, 2015

Re: [Pharo-dev] Example implementation of associations with Slots in Pharo 4.0

by Marcus Denker

> On 27 Feb 2015, at 11:46, Jan van de Sandt <jvdsandt(a)gmail.com> wrote: > > Hello, > > Thanks for your suggestions. I have improved the naming and definition to this: > > Object subclass: #SlotExampleMovie > slots: { > #name. > #year. > #director => ToOneRelationSlot inverse: #directedMovies inClass: #SlotExamplePerson. > #actors => ToManyRelationSlot inverse: #actedInMovies inClass: #SlotExamplePerson } > classVariables: { } > category: 'SlotAssociations-Tests-Example' > > Because it is for now just an example I haven't renamed the Slot classes yet. > Thanks! I will add the associations as examples to Pharo4 (today I think) Marcus

Feb. 27, 2015

Re: [Pharo-dev] The evil twin in 40516

by Tudor Girba

So many cool things! We cannot even imagine at this point what all these little conceptual things will bring in downstream projects. This is amazing. Thanks a lot, Doru On Fri, Feb 27, 2015 at 12:07 AM, Marcus Denker <marcus.denker(a)inria.fr> wrote: > Hi, > > In 40516 there is now a strange, but rather powerful mechanism for > CompiledMethod: the Twin. > > What does that do? > > you can call on a method #createTwin > > (ReflectivityExamples>>#exampleMethod) createTwin. > > after this, the CompiledMethod has a high-level representation (the AST) > attached that itself references the CompiledMethod > (they form a twin). > > (ReflectivityExamples>>#exampleMethod) reflectiveMethod > > The fun thing is now that one can install either in the class. Call > #invalidate to make sure the reflective method is installed. > > ReflectiveMethod implements #run:with:in: which calls a compilation hook > (too re-create from the AST) and then installs that in the > method dict and then executes the method: > > (ReflectivityExamples>>#exampleMethod) createTwin. > (ReflectivityExamples>>#exampleMethod) invalidate. > self assert: (ReflectivityExamples>>#exampleMethod) class = > ReflectiveMethod. > self assert: ReflectivityExamples new exampleMethod = 5. > self assert: (ReflectivityExamples>>#exampleMethod) class = > CompiledMethod. > > Which means that this gives us an in-image, on-demand JIT compiler > AST->Bytecode. In 50 lines of code. > > e.g. try on Morph: > > Morph methods do: #createTwin. > Morph methods do: #invalidate. > > Counting which twin is installed shows us the working set of Morph: > > (Morph methods select: [ :each | each class = CompiledMethod ]) size > > some 330 method out of nearly 900â¦. > > So what can one do with this? In essence this turns the AST into a > reflective representation for Methods > (if you care to set up twin creation + invalidation correctly). > > What will this allow us to do? stay tuned... > > Marcus > > > > -- www.tudorgirba.com "Every thing has its own flow"

Feb. 27, 2015

Re: [Pharo-dev] Slots: and ProcessLocalSlot

by Tudor Girba

Great catch. Thanks. Doru On Fri, Feb 27, 2015 at 11:23 AM, Alejandro Infante < alejandroinfante91(a)gmail.com> wrote: > First of all, the things that you are doing with slots are just amazing. I > never thought that there were so many cool stuff that could be done with > them. > > Now, two things to point out about the ProcessLocalSlot that probably not > all know. > > 1) The value is stored weakly, an example of this would be: > obj := MyClass new. > obj local: Object new. > obj local. âanObjectâ <ââ Now we see the object > Smalltalk garbageCollect. > obj local. ânilâ <ââ Now we donât > > 2) This variable are stored in a WeakArray in the Process, so massive use > of them will make the array in the processes start growing a lot and often. > Use them wisely :) > > Again, really cool stuff. > Thanks Guille!!! > > Cheers, > Alejandro > > On Feb 26, 2015, at 10:32 PM, Tudor Girba <tudor(a)tudorgirba.com> wrote: > > Very very nice! > > This is really cool. > > Doru > > On Thu, Feb 26, 2015 at 7:01 PM, Sven Van Caekenberghe <sven(a)stfx.eu> > wrote: > >> *Very* nice ! >> >> > On 26 Feb 2015, at 18:55, Guillermo Polito <guillermopolito(a)gmail.com> >> wrote: >> > >> > So I added an example of ProcessLocalSlot (like a thread local from >> other languages) using the existing ProcessLocalVariable. A variable has >> different values depending on the process the code is executing. >> > >> > Example of usage: >> > >> > Object subclass: #TestLocal >> > slots: { #local => ProcessLocalSlot } >> > classVariables: { } >> > category: 'SlotTestGuille'. >> > >> > object := TestLocal new. >> > object local: 55. >> > object local. >> > >> > [ valueInOtherProcess := object local ] fork. >> > >> > valueInOtherProcess. "=> nil" >> > >> > [ object local: 'String'. >> > valueInOtherProcess := object local ] fork. >> > >> > valueInOtherProcess. "=> 'String'" >> > object local "=> 55" >> > >> > Code in issue: >> https://pharo.fogbugz.com/f/cases/15004/Add-ProcessLocalSlot >> > >> > Guille >> >> >> > > > -- > www.tudorgirba.com > > "Every thing has its own flow" > > > -- www.tudorgirba.com "Every thing has its own flow"

Feb. 27, 2015

[pharo-project/pharo-core]

by GitHub

Branch: refs/tags/40518 Home: https://github.com/pharo-project/pharo-core

Feb. 27, 2015

[pharo-project/pharo-core] 3c72b1: 40518

by GitHub

Branch: refs/heads/4.0 Home: https://github.com/pharo-project/pharo-core Commit: 3c72b19984db177e9cf05273093b82be85642630 https://github.com/pharo-project/pharo-core/commit/3c72b19984db177e9cf05273… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2015-02-27 (Fri, 27 Feb 2015) Changed paths: M AST-Core.package/RBPatternVariableNode.class/instance/initialize-release/initializePatternVariables.st M Monticello.package/MCCacheRepository.class/instance/storing/storeVersion_.st A Monticello.package/MCFileBasedRepository.class/instance/storing/storeVersion_.st R ScriptLoader40.package/ScriptLoader.class/instance/pharo - scripts/script517.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - scripts/script518.st R ScriptLoader40.package/ScriptLoader.class/instance/pharo - updates/update40517.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - updates/update40518.st M ScriptLoader40.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st M Zinc-Resource-Meta-FileSystem.package/ZnFileUrlTests.class/instance/testing/testRetrieveContents.st A Zinc-Resource-Meta-FileSystem.package/ZnFileUrlTests.class/instance/testing/testWindowsDriveNamesInFileUrl.st Log Message: ----------- 40518 15006 RBPatternVariableNode>>initializePatternVariables(name is shadowed) https://pharo.fogbugz.com/f/cases/15006 15001 Update Zinc-Resource-Meta-FileSystem https://pharo.fogbugz.com/f/cases/15001 10741 Can not upload slice dependency already in repo https://pharo.fogbugz.com/f/cases/10741 http://files.pharo.org/image/40/40518.zip

Feb. 27, 2015

Re: [Pharo-dev] Slots: and ProcessLocalSlot

by Guillermo Polito

Done https://pharo.fogbugz.com/f/cases/15007/Add-comment-on-ProcessLocalSlot-for… El Fri Feb 27 2015 at 11:31:55 AM, Guillermo Polito < guillermopolito(a)gmail.com> escribiÃ³: > Haha, I didn't know that. I'll add that in the class comment. > > El Fri Feb 27 2015 at 11:23:59 AM, Alejandro Infante < > alejandroinfante91(a)gmail.com> escribiÃ³: > > First of all, the things that you are doing with slots are just amazing. I >> never thought that there were so many cool stuff that could be done with >> them. >> >> Now, two things to point out about the ProcessLocalSlot that probably not >> all know. >> >> 1) The value is stored weakly, an example of this would be: >> obj := MyClass new. >> obj local: Object new. >> obj local. âanObjectâ <ââ Now we see the object >> Smalltalk garbageCollect. >> obj local. ânilâ <ââ Now we donât >> >> 2) This variable are stored in a WeakArray in the Process, so massive use >> of them will make the array in the processes start growing a lot and often. >> Use them wisely :) >> >> Again, really cool stuff. >> Thanks Guille!!! >> >> Cheers, >> Alejandro >> >> On Feb 26, 2015, at 10:32 PM, Tudor Girba <tudor(a)tudorgirba.com> wrote: >> >> Very very nice! >> >> This is really cool. >> >> Doru >> >> On Thu, Feb 26, 2015 at 7:01 PM, Sven Van Caekenberghe <sven(a)stfx.eu> >> wrote: >> >>> *Very* nice ! >>> >>> > On 26 Feb 2015, at 18:55, Guillermo Polito <guillermopolito(a)gmail.com> >>> wrote: >>> > >>> > So I added an example of ProcessLocalSlot (like a thread local from >>> other languages) using the existing ProcessLocalVariable. A variable has >>> different values depending on the process the code is executing. >>> > >>> > Example of usage: >>> > >>> > Object subclass: #TestLocal >>> > slots: { #local => ProcessLocalSlot } >>> > classVariables: { } >>> > category: 'SlotTestGuille'. >>> > >>> > object := TestLocal new. >>> > object local: 55. >>> > object local. >>> > >>> > [ valueInOtherProcess := object local ] fork. >>> > >>> > valueInOtherProcess. "=> nil" >>> > >>> > [ object local: 'String'. >>> > valueInOtherProcess := object local ] fork. >>> > >>> > valueInOtherProcess. "=> 'String'" >>> > object local "=> 55" >>> > >>> > Code in issue: https://pharo.fogbugz.com/f/cases/15004/Add- >>> ProcessLocalSlot >>> > >>> > Guille >>> >>> >>> >> >> >> -- >> www.tudorgirba.com >> >> "Every thing has its own flow" >> >> >>

Feb. 27, 2015

Re: [Pharo-dev] GSOC 2015 Call for Ideas

by Serge Stinckwich

Dear all, last week, we submit the Pharo proposal for GSOC 2015 with Uko and we are waiting now for the answer from Google. Accepted organisations will be announce March 2, 2015. We have now more than 50 projects ideas but we are still looking for more ideas from the community ! Don't be shy, propose your project idea here: https://github.com/pharo-project/pharo-project-proposals/blob/master/Topics… regards, On Sun, Feb 15, 2015 at 3:23 PM, Serge Stinckwich <serge.stinckwich(a)gmail.com> wrote: > Dear pharoers, > > this year Pharo consortium (and community) is going to take part in a > Google Summer of Code event[1] as a standalone organization. This is > an opportunity to promote Pharo, get some job done and have students > paid. > > Currently we are at the most important stage as we are preparing the > organization application, and hoping that we will be accepted and > granted decent amount of project slots. Everyone can help with > application by submitting ideas for student projects. > > Current list can be found at: > https://github.com/pharo-project/pharo-project-proposals/blob/master/Topics… > > It is in STON format, and result is being generated at: http://gsoc.pharo.org/ > > Please add your ideas following the format of existing projects and > open a pull request with them (you will need a github account). > Preferably submit ideas with possible mentors, but if none are > available at the moment ideas without mentors are also welcome. > > The template to submit projects is : > > PharoTopic new > title: 'The name of your project; > contact: 'email address'; > supervisors: 'Supervisors names'; > keywords: 'keywords separated by spaces; > context: 'a description of the context of the project'; > goal: 'description of the goal'; > level: 'Beginner or Intermediate or Advanced'; > yourself. > > We will need a lot of projects/idea before February 20th 2015, the > deadline for applying to GSOC 2015. > > Do not hesitate to ask questions. Administrators of this yearâs > application are Serge Stinckwich <serge.stinckwich(a)gmail.com> and > Yuriy Tymchuk <yuriy.tymchuk(a)me.com> > > If you don't know how to edit the list, please send your project > following the template to the administrators. > > [1]: https://www.google-melange.com/gsoc/homepage/google/gsoc2015 > > Cheers, > -- > Serge Stinckwich > UCBN & UMI UMMISCO 209 (IRD/UPMC) > Every DSL ends up being Smalltalk > http://www.doesnotunderstand.org/ -- Serge Stinckwich UCBN & UMI UMMISCO 209 (IRD/UPMC) Every DSL ends up being Smalltalk http://www.doesnotunderstand.org/

Feb. 27, 2015

Re: [Pharo-dev] Example implementation of associations with Slots in Pharo 4.0

by Jan van de Sandt

Hello, Thanks for your suggestions. I have improved the naming and definition to this: Object subclass: #SlotExampleMovie slots: { #name. #year. #director => ToOneRelationSlot inverse: #directedMovies inClass: #SlotExamplePerson. #actors => ToManyRelationSlot inverse: #actedInMovies inClass: #SlotExamplePerson } classVariables: { } category: 'SlotAssociations-Tests-Example' Because it is for now just an example I haven't renamed the Slot classes yet. Jan. On Tue, Feb 24, 2015 at 8:03 AM, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > On 23 Feb 2015, at 22:34, Ben Coman <btc(a)openInWorld.com> wrote: > > I haven't played with the relation example yet, but will real soon. Just > some initial thoughts... > > I like RelationSlot. To me association seems one-way while a relation is > two-way. > > btw, Is there some reason to not match the syntax of the often cited paper > "Flexible Object Layout" ? > I see one advantage is that its easier to read all the slot names > vertically aligned. > > Object subclass: #SlotExampleMovie > slots: { > #name. > #year. > #director => ToOneRelationSlot opposite: #directedMovies class: > #SlotExamplePerson. > #actors => ToManyRelationSlot opposite: #actedInMovies class: #SlotExamplePerson. > } > classVariables: { } > category: 'SlotAssociations-Tests-Example' > > > Also maybe an alternative slot class name so that it reads more like a > sentence... "#director related to one #directedMovies in class > #SlotExamplePerson" > > Object subclass: #SlotExampleMovie > slots: { > #name. > #year. > #director => RelatedToOne inverse: #directedMovies inClass: > #SlotExamplePerson. > #actors => RelatedToMany inverse: #actedInMovies inClass: #SlotExamplePerson. > } > classVariables: { } > category: 'SlotAssociations-Tests-Example' > > > Something like those would be goodâ¦ yes, I think having the slot name in > front is important. > > Marcus > >

Feb. 27, 2015