- Pharo-dev - lists.pharo.org

how to make ad for PharoDays?

by stepharo

Dear Pharoers we would like to spread some noise around PharoDays and it may be good to send the announce esteban sent around. May be to FOSDEM would be good. Stef

Dec. 3, 2014

Re: [Pharo-dev] Duration year

by Hilaire

Le 02/12/2014 17:34, Sean P. DeNigris a Ã©crit : > One solution (just ignore the source ha ha) - > http://msdn.microsoft.com/en-us/library/system.datetime.addyears%28v=vs.110… > Something like ? Date>>addYears: integer ^ Date year: self year + integer month: self monthIndex day: ((self dayOfMonth = 29 and: [(Year isLeapYear: self year + integer) not and: [Year isLeapYear: self year]]) ifTrue: [ 28 ] ifFalse: [ self dayOfMonth]) -- Dr. Geo - http://drgeo.eu iStoa - http://istoa.drgeo.eu

Dec. 3, 2014

Re: [Pharo-dev] terminating a String in Smalltalk?

by Sven Van Caekenberghe

> On 03 Dec 2014, at 19:14, sheridan(a)sheridan-mahoney.com wrote: > > > Hi all, > > How do you terminate a string in Smalltalk so that it can be written to a file? > > Thanks, > > Sheridan [ this is a question for pharo-users ] I don't understand the question, what is 'terminate a string' ? Here is how you write to a file: 'myfile.txt' asFileReference writeStreamDo: [ :out | out nextPutAll: 'Hello World!' ]. If you want a line end, you can do 'myfile.txt' asFileReference writeStreamDo: [ :out | out nextPutAll: 'Hello World!'; cr ]. There is also #lf and #crlf. It is also possible to do line end conversions. What are you trying to do, what does not work ? Sven

Dec. 3, 2014

terminating a String in Smalltalk?

by sheridan＠sheridan-mahoney.com

Hi all, How do you terminate a string in Smalltalk so that it can be written to a file? Thanks, Sheridan

Dec. 3, 2014

Re: [Pharo-dev] Code retrieval on primitive failed

by Blondeau Vincent

De : Pharo-dev [mailto:pharo-dev-bounces@lists.pharo.org] De la part de ClÃ©ment Bera EnvoyÃ© : mercredi 3 dÃ©cembre 2014 17:54 Ã : Pharo Development List Objet : Re: [Pharo-dev] Code retrieval on primitive failed Please send the full stack trace. You don't have only three lines, do you ? No, indeed (the full stack is attached). There's one solution that Igor does sometimes that you can try...For that you need to remember what code you changed that now crashes the image in smalltalk. Do you know what code crash your image ? Could you rewrite it (exactly the same code) in a fresh image ? If so the process is as follow: - rewrite the crashing code in a fresh image - extract the bytecode from the compiled method - open a copy of your image with an hexadecimal editor, look for the bytecode pattern, replace it by returnself (byte 120 the number of times needed) - try open your copy. Do as little things as possible (typically, only file out your packages, monticello will most probably not work) Ok I will try this but this is more a generic printing method that is the problem (see trace)â¦ And not a specific methodâ¦ I tried but it seems not adapted to my caseâ¦ The alternative is to open your image on top of the cog simulator. Word has been that there's a Pharo 3 image running the cog simulator, you can use that to debug the code and fix it. Alternatively use a squeak vmmaker image that you can build with this script: $ svn co http://www.squeakvm.org/svn/squeak/branches/Cog/image $ cd ./image $ ./buildsqueaktrunkvmmakerimage.sh You put a halt on the implementation of primitive 117 in the simulator (named primitives call such as NB calls) to catch the crash and fix it from there in the simulator. That seems better ! I am trying this way. Good luck and have fun :-) Thanks :) 2014-12-03 17:04 GMT+01:00 Blondeau Vincent <vincent.blondeau(a)worldline.com<mailto:vincent.blondeau@worldline.com>>: Hello everyone, I am doing some developments with NativeBoost and unfortunaly I succeed to save my image in a unstable state. I am using the last moose image i.e.: Pharo3.0 - Latest update: #30860. So when I want to launch my image, I get a primitive faillure. The interesting part of the stack trace is : Stack backtrace: [07EE7A1B] ??? + 0 in (null) [00539AB5] ??? + 1284789 in Pharo.exe Smalltalk stack dump: 0x2410b8 M NBFFICallout class(NBNativeCodeGen class)>retrySend: 0x4c70b4c: a(n) NBFFICallout class 0x2410ec I NBFFICallout class(NBNativeCodeGen class)>retrySend: 0x4c70b4c: a(n) NBFFICallout class 0x78a0d90 s RDoubleVector(OrderedCollection)>at: Then I wanted to retrieve my changes on a new image but, as the doIts are not recorded, I have neither the method deletions nor all the operations on classes nor the trait methods that are recorded as Doits with preamble: Trait method. I tried to launch my image with squeak (which doesnât support NativeBoost) to hope saving or commit my code. But as I am calling a primitive at startup of the image to initialize the external environement. I got the following trace : [31m==== Startup Error: PrimitiveFailed: primitive #isEnabled in NativeBoost class failed [0mNativeBoost class(Object)>>primitiveFailed: NativeBoost class(Object)>>primitiveFailed NativeBoost class>>isEnabled NativeBoost class>>forCurrentPlatform NativeBoost class>>loadSymbol:fromModule: RSession class(Object)>>nbGetSymbolAddress:module: So what can I do to retrieve all my code without loose a day to rewrite it? Thanks in advance Vincent ________________________________ Ce message et les piÃ¨ces jointes sont confidentiels et rÃ©servÃ©s Ã l'usage exclusif de ses destinataires. Il peut Ã©galement Ãªtre protÃ©gÃ© par le secret professionnel. Si vous recevez ce message par erreur, merci d'en avertir immÃ©diatement l'expÃ©diteur et de le dÃ©truire. L'intÃ©gritÃ© du message ne pouvant Ãªtre assurÃ©e sur Internet, la responsabilitÃ© de Worldline ne pourra Ãªtre recherchÃ©e quant au contenu de ce message. Bien que les meilleurs efforts soient faits pour maintenir cette transmission exempte de tout virus, l'expÃ©diteur ne donne aucune garantie Ã cet Ã©gard et sa responsabilitÃ© ne saurait Ãªtre recherchÃ©e pour tout dommage rÃ©sultant d'un virus transmis. This e-mail and the documents attached are confidential and intended solely for the addressee; it may also be privileged. If you receive this e-mail in error, please notify the sender immediately and destroy it. As its integrity cannot be secured on the Internet, the Worldline liability cannot be triggered for the message content. Although the sender endeavours to maintain a computer virus-free network, the sender does not warrant that this transmission is virus-free and will not be liable for any damages resulting from any virus transmitted. ________________________________ Ce message et les piÃ¨ces jointes sont confidentiels et rÃ©servÃ©s Ã l'usage exclusif de ses destinataires. Il peut Ã©galement Ãªtre protÃ©gÃ© par le secret professionnel. Si vous recevez ce message par erreur, merci d'en avertir immÃ©diatement l'expÃ©diteur et de le dÃ©truire. L'intÃ©gritÃ© du message ne pouvant Ãªtre assurÃ©e sur Internet, la responsabilitÃ© de Worldline ne pourra Ãªtre recherchÃ©e quant au contenu de ce message. Bien que les meilleurs efforts soient faits pour maintenir cette transmission exempte de tout virus, l'expÃ©diteur ne donne aucune garantie Ã cet Ã©gard et sa responsabilitÃ© ne saurait Ãªtre recherchÃ©e pour tout dommage rÃ©sultant d'un virus transmis. This e-mail and the documents attached are confidential and intended solely for the addressee; it may also be privileged. If you receive this e-mail in error, please notify the sender immediately and destroy it. As its integrity cannot be secured on the Internet, the Worldline liability cannot be triggered for the message content. Although the sender endeavours to maintain a computer virus-free network, the sender does not warrant that this transmission is virus-free and will not be liable for any damages resulting from any virus transmitted.

Dec. 3, 2014

Re: [Pharo-dev] Code retrieval on primitive failed

by ClÃ©ment Bera

Please send the full stack trace. You don't have only three lines, do you ? There's one solution that Igor does sometimes that you can try...For that you need to remember what code you changed that now crashes the image in smalltalk. Do you know what code crash your image ? Could you rewrite it (exactly the same code) in a fresh image ? If so the process is as follow: - rewrite the crashing code in a fresh image - extract the bytecode from the compiled method - open a copy of your image with an hexadecimal editor, look for the bytecode pattern, replace it by returnself (byte 120 the number of times needed) - try open your copy. Do as little things as possible (typically, only file out your packages, monticello will most probably not work) The alternative is to open your image on top of the cog simulator. Word has been that there's a Pharo 3 image running the cog simulator, you can use that to debug the code and fix it. Alternatively use a squeak vmmaker image that you can build with this script: $ svn co http://www.squeakvm.org/svn/squeak/branches/Cog/image $ cd ./image $ ./buildsqueaktrunkvmmakerimage.sh You put a halt on the implementation of primitive 117 in the simulator (named primitives call such as NB calls) to catch the crash and fix it from there in the simulator. Good luck and have fun :-) 2014-12-03 17:04 GMT+01:00 Blondeau Vincent <vincent.blondeau(a)worldline.com> : > Hello everyone, > > > > I am doing some developments with NativeBoost and unfortunaly I succeed to > save my image in a unstable state. > > I am using the last moose image i.e.: Pharo3.0 - Latest update: #30860. > > > > So when I want to launch my image, I get a primitive faillure. > > The interesting part of the stack trace is : > > Stack backtrace: > > [07EE7A1B] ??? + 0 in (null) > > [00539AB5] ??? + 1284789 in Pharo.exe > > > > Smalltalk stack dump: > > 0x2410b8 M NBFFICallout class(NBNativeCodeGen class)>retrySend: > 0x4c70b4c: a(n) NBFFICallout class > > 0x2410ec I NBFFICallout class(NBNativeCodeGen class)>retrySend: > 0x4c70b4c: a(n) NBFFICallout class > > 0x78a0d90 s RDoubleVector(OrderedCollection)>at: > > > > Then I wanted to retrieve my changes on a new image but, as the doIts are > not recorded, I have neither the method deletions nor all the operations on > classes nor the trait methods that are recorded as Doits with preamble: > Trait method. > > > > I tried to launch my image with squeak (which doesnât support NativeBoost) > to hope saving or commit my code. But as I am calling a primitive at > startup of the image to initialize the external environement. I got the > following trace : > > [31m==== Startup Error: PrimitiveFailed: primitive #isEnabled in > NativeBoost class failed > > [0mNativeBoost class(Object)>>primitiveFailed: > > NativeBoost class(Object)>>primitiveFailed > > NativeBoost class>>isEnabled > > NativeBoost class>>forCurrentPlatform > > NativeBoost class>>loadSymbol:fromModule: > > RSession class(Object)>>nbGetSymbolAddress:module: > > > > So what can I do to retrieve all my code without loose a day to rewrite it? > > > > Thanks in advance > > > > Vincent > > > > ------------------------------ > > Ce message et les piÃ¨ces jointes sont confidentiels et rÃ©servÃ©s Ã l'usage > exclusif de ses destinataires. Il peut Ã©galement Ãªtre protÃ©gÃ© par le secret > professionnel. Si vous recevez ce message par erreur, merci d'en avertir > immÃ©diatement l'expÃ©diteur et de le dÃ©truire. L'intÃ©gritÃ© du message ne > pouvant Ãªtre assurÃ©e sur Internet, la responsabilitÃ© de Worldline ne pourra > Ãªtre recherchÃ©e quant au contenu de ce message. Bien que les meilleurs > efforts soient faits pour maintenir cette transmission exempte de tout > virus, l'expÃ©diteur ne donne aucune garantie Ã cet Ã©gard et sa > responsabilitÃ© ne saurait Ãªtre recherchÃ©e pour tout dommage rÃ©sultant d'un > virus transmis. > > This e-mail and the documents attached are confidential and intended > solely for the addressee; it may also be privileged. If you receive this > e-mail in error, please notify the sender immediately and destroy it. As > its integrity cannot be secured on the Internet, the Worldline liability > cannot be triggered for the message content. Although the sender endeavours > to maintain a computer virus-free network, the sender does not warrant that > this transmission is virus-free and will not be liable for any damages > resulting from any virus transmitted. >

Dec. 3, 2014

Code retrieval on primitive failed

by Blondeau Vincent

Hello everyone, I am doing some developments with NativeBoost and unfortunaly I succeed to save my image in a unstable state. I am using the last moose image i.e.: Pharo3.0 - Latest update: #30860. So when I want to launch my image, I get a primitive faillure. The interesting part of the stack trace is : Stack backtrace: [07EE7A1B] ??? + 0 in (null) [00539AB5] ??? + 1284789 in Pharo.exe Smalltalk stack dump: 0x2410b8 M NBFFICallout class(NBNativeCodeGen class)>retrySend: 0x4c70b4c: a(n) NBFFICallout class 0x2410ec I NBFFICallout class(NBNativeCodeGen class)>retrySend: 0x4c70b4c: a(n) NBFFICallout class 0x78a0d90 s RDoubleVector(OrderedCollection)>at: Then I wanted to retrieve my changes on a new image but, as the doIts are not recorded, I have neither the method deletions nor all the operations on classes nor the trait methods that are recorded as Doits with preamble: Trait method. I tried to launch my image with squeak (which doesn't support NativeBoost) to hope saving or commit my code. But as I am calling a primitive at startup of the image to initialize the external environement. I got the following trace : [31m==== Startup Error: PrimitiveFailed: primitive #isEnabled in NativeBoost class failed [0mNativeBoost class(Object)>>primitiveFailed: NativeBoost class(Object)>>primitiveFailed NativeBoost class>>isEnabled NativeBoost class>>forCurrentPlatform NativeBoost class>>loadSymbol:fromModule: RSession class(Object)>>nbGetSymbolAddress:module: So what can I do to retrieve all my code without loose a day to rewrite it? Thanks in advance Vincent ________________________________ Ce message et les pi?ces jointes sont confidentiels et r?serv?s ? l'usage exclusif de ses destinataires. Il peut ?galement ?tre prot?g? par le secret professionnel. Si vous recevez ce message par erreur, merci d'en avertir imm?diatement l'exp?diteur et de le d?truire. L'int?grit? du message ne pouvant ?tre assur?e sur Internet, la responsabilit? de Worldline ne pourra ?tre recherch?e quant au contenu de ce message. Bien que les meilleurs efforts soient faits pour maintenir cette transmission exempte de tout virus, l'exp?diteur ne donne aucune garantie ? cet ?gard et sa responsabilit? ne saurait ?tre recherch?e pour tout dommage r?sultant d'un virus transmis. This e-mail and the documents attached are confidential and intended solely for the addressee; it may also be privileged. If you receive this e-mail in error, please notify the sender immediately and destroy it. As its integrity cannot be secured on the Internet, the Worldline liability cannot be triggered for the message content. Although the sender endeavours to maintain a computer virus-free network, the sender does not warrant that this transmission is virus-free and will not be liable for any damages resulting from any virus transmitted.

Dec. 3, 2014

[ANN] Pharo Days 2015. The Pharo summit is back!

by Esteban Lorenzano

Pharo Days 2015 http://pharodays2015.pharo.org January 29 & 30, Lille, France INRIA Lille, building A, 40 avenue Halley, F-59650 Villeneuve dâAscq == General Information == Start the year in the right spirit by joining the Pharo community for the Pharo Days 2015 on Thursday January 29 and Friday January 30 at INRIA, Lille, France. Meet your online colleagues, programmers and hackers in real life and experience how much you can pick up in just two days. Learn about key technologies, talk to core developers and other users, pair program and contribute to Pharo. Have fun and enjoy yourself. Each day has a similar schedule. The morning consists of a handful of twenty minute tech talks, the afternoon is a coding sprint and open pair programming workspace. There will be a general assembly of both the Pharo Consortium and the Pharo Association. On the first days there will be a parallel Getting Started with Pharo tutorial in the afternoon. The very first Pharo conference took place in Annecy in February 2011. In May 2012 the second Pharo Conference took place, over two days, in Lille. It was a huge success, with about 60 people participating. It had a very positive effect on the community and on those who participated. In April 2013 there was a third well attended Pharo Conference in Bern. In June 2013, there was also a successful Web specific Pharo one-day event in Lille. Join us again this time. == Pricing == The Pharo Days are a two day event with catering included (2 lunches, 1 diner, drinks and snacks) in a nice environment with full facilities (main room, auxiliary rooms, office furtniture and wireless network). â¬ 199âââRegular â¬ 149âââFor individual Pharo Association Members â¬ 89âââFor individual Pharo Gold Association Members â¬ 89âââFor Pharo Consortium Members (1, 2 or 4 for silver, bronze or gold) â¬ 39âââStudents (excluding diner) â¬ 19âââStudent Volunteers (excluding diner) == Registration == For official registration we are using EventBrite. You can buy tickets using PayPal and hence any credit card. If absolutely necessary, you can opt for an off line payment. Please register on time. For social registration you can use Lanyrd or Doodle. Spread the word: Summit schedule and relevant data: http://pharodays2015.pharo.org Register here: http://www.eventbrite.com/e/pharos-days-2015-tickets-14469423435

Dec. 3, 2014

Re: [Pharo-dev] class variable slots?

by Ben Coman

In System Browser, right-click on a class > Analyse > Class refs... or, select some text e.g. 'Object' > Extended search...>references to it and in both cases there is highlighting of the search for class, which I find useful. cheers -ben Tudor Girba wrote: > What do you mean? > > Doru > > On Wed, Dec 3, 2014 at 2:33 PM, Ben Coman <btc(a)openinworld.com > <mailto:btc@openinworld.com>> wrote: > > Marcus Denker wrote: > > > > On Wed, Dec 3, 2014 at 1:32 PM, Tudor Girba > <tudor(a)tudorgirba.com <mailto:tudor@tudorgirba.com> > <mailto:tudor@tudorgirba.com <mailto:tudor@tudorgirba.com>>> wrote: > > Exactly! This is what I was looking for :) > > > This is now in 4.0 #397 > > e.g. use GTInspector on > > Object binding > > > Is it feasible to get highlighting of 'Object' as well? > cheers -ben > > > > > -- > www.tudorgirba.com <http://www.tudorgirba.com> > > "Every thing has its own flow"

Dec. 3, 2014

Re: [Pharo-dev] Athens and ellipse drawing (again)

by Igor Stasenko

On 3 December 2014 at 12:13, Nicolai Hess <nicolaihess(a)web.de> wrote: > background: > > forum.world.st/Athens-and-ellipse-drawing-td4754256.html > > drawing an ellipse by drawing a non-uniform-scaled circle > works, but the border is scaled as well. > > in Roassal2, ellipse shapes always use a small 1px border > (https://code.google.com/p/moose-technology/issues/detail?id=1097) > > As described in the above 2 threads, it is possible to draw an ellipse > with uniform border with cairo, and it is possible to do this > with athens, although athens does not provide this as a public api. > > A much easier solution than the one I suggested in > https://code.google.com/p/moose-technology/issues/detail?id=1097 > is to use athens "paintTransform". > > We need to add > AthensCairoCanvas>>setPaintMatrix > (similiar to setPathMatrix) > > and call this in > AthensCairoStrokePaint>>#athensFillPath:on: > > self prepareForDrawingOn: aCanvas. > > aCanvas > newPath; > loadPath: aPath; > setPaintMatrix; "< --- new" > stroke > > > what do you think? > > it looks like you discovered a bug. the point is, that the paint matrix should affect the output.. and if it doesn't then it is a bug. If so, feel free to post a fix. > > Nicolai > > -- Best regards, Igor Stasenko.

Dec. 3, 2014