June 2012 - Esug-list - lists.esug.org

Re: [Esug-list] Worrying issue re compilation in Pharo 1.4

by Richard Sargent

I can recall seeing a problem similar to this some years ago in VisualAge Smalltalk. VisualAge Smalltalk uses the ENVY version control system (I think very highly of it!). I was able to determine what the developer had done "wrong", so it is possible that something similar exists with Pharo. Specifically, if one browses the differences between the currently loaded edition and another version, one could have an opportunity to load the alternate edition of the class definition itself through the Differences Browser. I found that this failed to recompile the methods, and resulted in methods referring to wrong the wrong instance variable offsets. I know nothing about Pharo, what version control it has, and what change browsing capabilities it has. So, I cannot say that it is the same problem, just that it is a possibility. Good luck, Richard _____ From: Graham McLeod [mailto:mcleod@iafrica.com] Sent: June-27-12 1:34 AM To: Philippe Marschall Cc: ESUG Mailing list; Andrew P. Black Subject: Re: [Esug-list] Worrying issue re compilation in Pharo 1.4 Thanks all. I have not been able to reproduce the problem. It may have been a unique sequence of actions unlikely to recur. The new strategy sounds good. KR Graham Philippe Marschall wrote: On Tue, Jun 26, 2012 at 7:49 PM, Marcus Denker <mailto:marcus.denker@inria.fr> <marcus.denker(a)inria.fr> wrote: On Jun 26, 2012, at 7:04 PM, Andrew P. Black wrote: On 25 Jun 2012, at 08:50 , Graham McLeod wrote: There still remains the question of how the system allowed the situation to arise in the first place tho.. Indeed: this should never happen. So, if you can reproduce the problem, you should report it as a bug in the 1.4 bug tracker. http://code.google.com/p/pharo/issues/list Yes! As far as I know, there is no bug reported regarding any problems with this... we are, though, completely rewriting this part of the system for 2.0: -> the old system change notifycation mechanism will be replaced with a new system base on Announcements. -> the old class builder will be replaced by one based on the work in the context of first class Slots (see the OOPSLA Paper of Toon and Camillo: http://scg.unibe.ch/scgbib?query=Verw11b <http://scg.unibe.ch/scgbib?query=Verw11b&display=abstract> &display=abstract ) -> instead of recompiling, we will just change the offsets of the iVars on the level of the bytecode intermediate representation of the new pharo compiler. Nice! Cheers Philippe _______________________________________________ Esug-list mailing list Esug-list(a)lists.esug.org http://lists.esug.org/mailman/listinfo/esug-list_lists.esug.org

June 27, 2012

German Squeakers meeting July, 7th in Potsdam

by Rita Freudenberg

Dear Squeakers, here comes the invitation for the annual meeting of Squeak Germany e.V. on July, 7th at HPI in Potsdam. http://www.squeak.de/events-squeaktreffen-2012/squeaktreffen-2012 Greetings, Rita ------------------------------------------------------------------------------------------------------------------------------ Liebe Squeaker, auch dieses Jahr laden wir Euch wieder herzliche zum Squeak-Treffen mit Vorträgen und zur Mitgliederversammlung ein Wo? Dank Robert Hirschfeld und seinem Team wieder am Hasso Plattner Institut bei der Software-Architektur Gruppe in Potsdam. Den Raum geben wir noch bekannt. Anfahrt: http://www.hpi.uni-potsdam.de/hpi/campus/anfahrt.html S a m s t a g, 07.07.2012 Vorträge (Beginn 13:00 Uhr) Themen sind gern gesehen bzw. in Planung. Wenn Ihr Ideen habt, bitte melden! Bitte meldet Euch rechtzeitig! Vereinsversammlung (17:00 Uhr - 18:00 Uhr) - Bestimmung des Protokollführers und der Kassenprüfer - Feststellung der Beschlussfähigkeit - Vorstellung / Änderung der Tagesordnung - Aktivitäten des Vereins 2011-2012 - Bericht des Schatzmeisters und der Kassenprüfer - Künftige Aktivitäten - Sonstiges Wer noch Ideen für Tagesordnungspunkte hat, bitte satzungsgemäß innerhalb von zwei Wochen melden. Anschließend Ausklang in gemütlicher Runde in Potsdam. Bitte antwortet an uns oder an die Liste, wenn Ihr kommen könnt, so dass wir ein wenig planen können, vor allem wegen des abendlichen Treffens! Wir hoffen Euch wieder zahlreich in Potsdam treffen zu können. Viele Grüße Enno, Esther und Rita Rita Freudenberg rita.freudenberg(a)ovgu.de

June 27, 2012

Re: [Esug-list] Silver Anniversary

by giorgio ferraris

Hi, Georg, happy anniversary and best wishes for a brilliant future. ciao Giorgio On Wed, Jun 27, 2012 at 2:36 PM, Georg Heeg <georg(a)heeg.de> wrote: > Dear Smalltalkers, > > 7/7/1987 I founded my company, thus we will celebrate our silver > anniversary 7/7/2012. > > Hereby I invite you and your friends and colleagues to celebrate with us. > > Saturday, 7/7/2012, an open day will take place from 10 am to 4 pm in our > house in Wallstr. 22 in Köthen under the motto "Actually what does the > company Heeg do?". > > We will begin at 10 am with a devotion led by Reverend Armin Kensbock. > This will be followed by welcome addresses: the Mayor of our city Mr. > Kurt-Jürgen Zander, Ms. Brigitte Take, Member of the Landtag, Mr. Minister > (Ret.) Dr. Werner Sobetzko have announced addresses so far. A colorful > programme follows, where anyone can learn, what we have done in the past 25 > years and what the focus of our work has been. > > Who is prevented, for example by the Saxony Anhalt day in Dessau on > Saturday or just wants to party with us on the eve, is invited Friday > evening 6.7.2012 to an informal barbecue. > > Instead of presents, we ask for donations for the restoration of the > Steinway grand piano of Music School Johann Sebastian Bach in Cöthen. > Keyboard buttons can be purchased symbolically where the price is depending > on the pitch from 55 € to 150 € (the a1 (440 Hz) is already sold to the > string wind Orchestra and today the money transfer will take place). We ask > that payments to the account of the Association of friends of the school of > music at the Kreissparkasse Anhalt-Bitterfeld, bank code 80053722, account > number 310000807. We'll have also a violin case. > > We ask you a short feedback, with how many people you plan to come. > > Georg > > Georg Heeg eK, Dortmund und Köthen, HR Dortmund A 12812 Wallstraße 22, > 06366 Köthen Tel. +49-3496-214328, Fax +49-3496-214712 > > > > > _______________________________________________ > Esug-list mailing list > Esug-list(a)lists.esug.org > http://lists.esug.org/mailman/listinfo/esug-list_lists.esug.org >

June 27, 2012

Re: [Esug-list] Silver Anniversary

by Janko Mivšek

Happy anniversary Georg and many many more fruitful Smalltalk years ahead! Janko On 27. 06. 2012 14:36, Georg Heeg wrote: > Dear Smalltalkers, > > 7/7/1987 I founded my company, thus we will celebrate our silver anniversary 7/7/2012. > > Hereby I invite you and your friends and colleagues to celebrate with us. > > Saturday, 7/7/2012, an open day will take place from 10 am to 4 pm in our house in Wallstr. 22 in Köthen under the motto "Actually what does the company Heeg do?". > > We will begin at 10 am with a devotion led by Reverend Armin Kensbock. This will be followed by welcome addresses: the Mayor of our city Mr. Kurt-Jürgen Zander, Ms. Brigitte Take, Member of the Landtag, Mr. Minister (Ret.) Dr. Werner Sobetzko have announced addresses so far. A colorful programme follows, where anyone can learn, what we have done in the past 25 years and what the focus of our work has been. > > Who is prevented, for example by the Saxony Anhalt day in Dessau on Saturday or just wants to party with us on the eve, is invited Friday evening 6.7.2012 to an informal barbecue. > > Instead of presents, we ask for donations for the restoration of the Steinway grand piano of Music School Johann Sebastian Bach in Cöthen. Keyboard buttons can be purchased symbolically where the price is depending on the pitch from 55 € to 150 € (the a1 (440 Hz) is already sold to the string wind Orchestra and today the money transfer will take place). We ask that payments to the account of the Association of friends of the school of music at the Kreissparkasse Anhalt-Bitterfeld, bank code 80053722, account number 310000807. We'll have also a violin case. > > We ask you a short feedback, with how many people you plan to come. > > Georg > > Georg Heeg eK, Dortmund und Köthen, HR Dortmund A 12812 Wallstraße 22, 06366 Köthen Tel. +49-3496-214328, Fax +49-3496-214712 > > > > > _______________________________________________ > Esug-list mailing list > Esug-list(a)lists.esug.org > http://lists.esug.org/mailman/listinfo/esug-list_lists.esug.org -- Janko Mivšek Aida/Web Smalltalk Web Application Server http://www.aidaweb.si

June 27, 2012

Re: [Esug-list] Silver Anniversary

by Bert Freudenberg

Congratulations on your anniversary! Unfortunately, on 7/7 there is the annual German Squeak get-together at HPI in Potsdam. But maybe I can drop by for the barbecue. Sounds like a bit more fun, too ;) - Bert - On 27.06.2012, at 14:36, Georg Heeg wrote: > Dear Smalltalkers, > > 7/7/1987 I founded my company, thus we will celebrate our silver anniversary 7/7/2012. > > Hereby I invite you and your friends and colleagues to celebrate with us. > > Saturday, 7/7/2012, an open day will take place from 10 am to 4 pm in our house in Wallstr. 22 in Köthen under the motto "Actually what does the company Heeg do?". > > We will begin at 10 am with a devotion led by Reverend Armin Kensbock. This will be followed by welcome addresses: the Mayor of our city Mr. Kurt-Jürgen Zander, Ms. Brigitte Take, Member of the Landtag, Mr. Minister (Ret.) Dr. Werner Sobetzko have announced addresses so far. A colorful programme follows, where anyone can learn, what we have done in the past 25 years and what the focus of our work has been. > > Who is prevented, for example by the Saxony Anhalt day in Dessau on Saturday or just wants to party with us on the eve, is invited Friday evening 6.7.2012 to an informal barbecue. > > Instead of presents, we ask for donations for the restoration of the Steinway grand piano of Music School Johann Sebastian Bach in Cöthen. Keyboard buttons can be purchased symbolically where the price is depending on the pitch from 55 € to 150 € (the a1 (440 Hz) is already sold to the string wind Orchestra and today the money transfer will take place). We ask that payments to the account of the Association of friends of the school of music at the Kreissparkasse Anhalt-Bitterfeld, bank code 80053722, account number 310000807. We'll have also a violin case. > > We ask you a short feedback, with how many people you plan to come. > > Georg > > Georg Heeg eK, Dortmund und Köthen, HR Dortmund A 12812 Wallstraße 22, 06366 Köthen Tel. +49-3496-214328, Fax +49-3496-214712 > > > > > _______________________________________________ > Esug-list mailing list > Esug-list(a)lists.esug.org > http://lists.esug.org/mailman/listinfo/esug-list_lists.esug.org

June 27, 2012

Silver Anniversary

by Georg Heeg

Dear Smalltalkers, 7/7/1987 I founded my company, thus we will celebrate our silver anniversary 7/7/2012. Hereby I invite you and your friends and colleagues to celebrate with us. Saturday, 7/7/2012, an open day will take place from 10 am to 4 pm in our house in Wallstr. 22 in Köthen under the motto "Actually what does the company Heeg do?". We will begin at 10 am with a devotion led by Reverend Armin Kensbock. This will be followed by welcome addresses: the Mayor of our city Mr. Kurt-Jürgen Zander, Ms. Brigitte Take, Member of the Landtag, Mr. Minister (Ret.) Dr. Werner Sobetzko have announced addresses so far. A colorful programme follows, where anyone can learn, what we have done in the past 25 years and what the focus of our work has been. Who is prevented, for example by the Saxony Anhalt day in Dessau on Saturday or just wants to party with us on the eve, is invited Friday evening 6.7.2012 to an informal barbecue. Instead of presents, we ask for donations for the restoration of the Steinway grand piano of Music School Johann Sebastian Bach in Cöthen. Keyboard buttons can be purchased symbolically where the price is depending on the pitch from 55 € to 150 € (the a1 (440 Hz) is already sold to the string wind Orchestra and today the money transfer will take place). We ask that payments to the account of the Association of friends of the school of music at the Kreissparkasse Anhalt-Bitterfeld, bank code 80053722, account number 310000807. We'll have also a violin case. We ask you a short feedback, with how many people you plan to come. Georg Georg Heeg eK, Dortmund und Köthen, HR Dortmund A 12812 Wallstraße 22, 06366 Köthen Tel. +49-3496-214328, Fax +49-3496-214712

June 27, 2012

Re: [Esug-list] Worrying issue re compilation in Pharo 1.4

by Graham McLeod

Thanks all. I have not been able to reproduce the problem. It may have been a unique sequence of actions unlikely to recur. The new strategy sounds good. KR Graham Philippe Marschall wrote: > On Tue, Jun 26, 2012 at 7:49 PM, Marcus Denker<marcus.denker(a)inria.fr> wrote: >> On Jun 26, 2012, at 7:04 PM, Andrew P. Black wrote: >> >>> On 25 Jun 2012, at 08:50 , Graham McLeod wrote: >>> >>>> There still remains the question of how the system allowed the situation to arise in the first place tho.. >>> Indeed: this should never happen. So, if you can reproduce the problem, you should report it as a bug in the 1.4 bug tracker. >>> >>> http://code.google.com/p/pharo/issues/list >>> >> Yes! As far as I know, there is no bug reported regarding any problems with this... we are, though, completely rewriting this >> part of the system for 2.0: >> -> the old system change notifycation mechanism will be replaced with a new system base on Announcements. >> -> the old class builder will be replaced by one based on the work in the context of first class Slots >> (see the OOPSLA Paper of Toon and Camillo: http://scg.unibe.ch/scgbib?query=Verw11b&display=abstract ) >> -> instead of recompiling, we will just change the offsets of the iVars on the level of the bytecode intermediate representation >> of the new pharo compiler. > > Nice! > > Cheers > Philippe > > _______________________________________________ > Esug-list mailing list > Esug-list(a)lists.esug.org > http://lists.esug.org/mailman/listinfo/esug-list_lists.esug.org

June 26, 2012

Re: [Esug-list] Worrying issue re compilation in Pharo 1.4

by Philippe Marschall

On Tue, Jun 26, 2012 at 7:49 PM, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > On Jun 26, 2012, at 7:04 PM, Andrew P. Black wrote: > >> >> On 25 Jun 2012, at 08:50 , Graham McLeod wrote: >> >>> There still remains the question of how the system allowed the situation to arise in the first place tho.. >> >> Indeed: this should never happen. So, if you can reproduce the problem, you should report it as a bug in the 1.4 bug tracker. >> >> http://code.google.com/p/pharo/issues/list >> > Yes! As far as I know, there is no bug reported regarding any problems with this... we are, though, completely rewriting this > part of the system for 2.0: > -> the old system change notifycation mechanism will be replaced with a new system base on Announcements. > -> the old class builder will be replaced by one based on the work in the context of first class Slots > (see the OOPSLA Paper of Toon and Camillo: http://scg.unibe.ch/scgbib?query=Verw11b&display=abstract ) > -> instead of recompiling, we will just change the offsets of the iVars on the level of the bytecode intermediate representation > of the new pharo compiler. Nice! Cheers Philippe

June 26, 2012

Re: [Esug-list] Worrying issue re compilation in Pharo 1.4

by Marcus Denker

On Jun 26, 2012, at 7:04 PM, Andrew P. Black wrote: > > On 25 Jun 2012, at 08:50 , Graham McLeod wrote: > >> There still remains the question of how the system allowed the situation to arise in the first place tho.. > > Indeed: this should never happen. So, if you can reproduce the problem, you should report it as a bug in the 1.4 bug tracker. > > http://code.google.com/p/pharo/issues/list > Yes! As far as I know, there is no bug reported regarding any problems with this... we are, though, completely rewriting this part of the system for 2.0: -> the old system change notifycation mechanism will be replaced with a new system base on Announcements. -> the old class builder will be replaced by one based on the work in the context of first class Slots (see the OOPSLA Paper of Toon and Camillo: http://scg.unibe.ch/scgbib?query=Verw11b&display=abstract ) -> instead of recompiling, we will just change the offsets of the iVars on the level of the bytecode intermediate representation of the new pharo compiler. This is not yet in 2.0... but we are woking on it. Marcus -- Marcus Denker -- http://marcusdenker.de

June 26, 2012

Re: [Esug-list] Worrying issue re compilation in Pharo 1.4

by Andrew P. Black

On 25 Jun 2012, at 08:50 , Graham McLeod wrote: > There still remains the question of how the system allowed the situation to arise in the first place tho.. Indeed: this should never happen. So, if you can reproduce the problem, you should report it as a bug in the 1.4 bug tracker. http://code.google.com/p/pharo/issues/list Andrew

June 26, 2012