June 2010 - Pharo-users - lists.pharo.org

Using Pharo 1.1

by Sven Van Caekenberghe

Hi, Yet another question. I keep hearing and reading that Pharo 1.1 is quite usable and a lot better than 1.0 that I am currently using. Is that true ? If I download Pharo-1.1-11367-Betadev10.05.1 how do I then keep up to date with the development that is presumably still going on ? It seems like only Pharo-Core images have this 'software update' world menu item ? Or do I just have to keep on downloading the lastest released beta ? Sorry for all the beginner questions... Thx, Sven

June 10, 2010

Glorp & PostgresV2

by Sven Van Caekenberghe

Hi, A similar question regarding Glorp & PosgresV2: what is the official Pharo standpoint regarding this ? There is no ConfigurationOfGlorpNativePostgreSQL (there are some for DBX, but I don't need that). I used GlorpPharoLoader loadGlorpWithNativePostgreSQLDriver. I had to make some small changes to GlorpDriverPostgreSQL and PostgresV2 to make more tests succeed. The installer did also load the underscore.cs hack adding an ugly star in Monticello to Compiler (Scanner#xLetter). But all in all it does work great and fast. Is this something for the Pharo list or should I go ask my questions somewhere else ? Sven

June 10, 2010

Re: [Pharo-users] Alien for Squeak 4.1/Pharo 1.1?

by Joachim Geidel

Am 09.06.10 11:35 schrieb StÃ©phane Ducasse: >> Am 09.06.10 08:06 schrieb StÃ©phane Ducasse: >>> We would love to have a version of alien working for pharo on all platform. [snip] >>>> as they are redundant or obsolete in >>>> Squeak 4.1. I have a version of the Alien-Core Monticello package which >>>> loads cleanly in Squeak 4.1, if anybody is interested. However, this >>>> package >>>> does not load in Pharo 1.1 beta 11367 - some of the changes I removed still >>>> seem to be needed there. >>> >>> can you point us to them? I had a look at Alien-Prereqs and Alien-Core. Actually, it seems that all extensions to system classes except the conversion and utility methods can be removed in all three platforms. The only exception is Parser>>pragmaStatement. It is needed in Pharo 1.0, which contains an old version of that method. I have added a comment to Pharo issue #1360 (http://code.google.com/p/pharo/issues/detail?id=1360) with attached Monticello versions of Pharo-Prereqs and Pharo-Core which are compatible with Pharo 1.0, 1.1, and Squeak 4.1. Pharo-Prereqs is only needed in Pharo 1.0. The Alien tests were green on all three platforms. I have accidentally published Alien-Core to SqueakSource, but have asked John McIntosh to delete the version. I think that my changes should be reviewed by someone with better knowledge of Alien and who knows how to update the ConfigurationOfAlien, before they are released publicly. Sorry for the inconvinience, I will be more careful next time. Best regards, Joachim Geidel

June 10, 2010

WebClient

by Sven Van Caekenberghe

Hi, Andreas Raab's 'new' WebClient/WebServer seems quite nice, as he says himself: As a result, we now have what I think is a pretty decent HTTP server and client implementation for Squeak 4.1 and hopefully we can nuke HTTPSocket sometime soon. WebClient is superior in every respect. Is this something that will / should fit seamlessly into Pharo ? Or even become preinstalled ? I didn't try his ConfigurationOfWebClient since the last version was unreadable and it seemed like an experiment, while his textual explanation was easy to follow. To load it into and to make the unit tests run in Pharo 1.0 I had to make a couple of fixes (to WebCookie#printOn: and WebServer class#serverString). Who should I sent these changes to ? But even then 1 unit test failed (#testServerDestroy). Furthermore, some the changes in his package WebClient-Pharo seem a bit dangerous, especially a modification to SocketStream#peek (and the failed test was doing a peek) and an override of String#, some others are unneccessary as far as I can see. Sven -- Sven Van Caekenberghe - mailto:sven@beta9.be Beta Nine - software engineering - http://www.beta9.be .Mac - svc(a)mac.com - http://homepage.mac.com/svc

June 10, 2010

Re: [Pharo-users] JNIPort preview for Pharo available on SqueakSource

by Johan Fabry

On 09 Jun 2010, at 01:35, Tudor Girba wrote: > Hi Johan, > > It is not only reasoning about Java. A connection to Java is very useful to communicate with Java libraries (for example, graph libraries). True, I was just considering my point of view because my name propped up :-) > Also, what Johan Brichau did in VW was to directly query Eclipse for reasoning about Java. Pretty cool :) Yes, penumbra is very cool. We used it in the first version of AspectMaps built on VW. Penumbra is what I wanted Irish to be in my time, but at that time Eclipse did not have sub-method granularity for the Java code. The difficulties with the penumbra way is that Eclipse is a horrible beast to work on because of its complexity (I have some nice plugin horror stories). So Respect to JohanB for getting it working in the first place, and I understand why there is nothing like this for Pharo (yet). -- Johan Fabry jfabry(a)dcc.uchile.cl - http://dcc.uchile.cl/~jfabry PLEIAD Lab - Computer Science Department (DCC) - University of Chile

June 9, 2010

Re: [Pharo-users] Alien for Squeak 4.1/Pharo 1.1?

by StÃ©phane Ducasse

On Jun 9, 2010, at 9:32 AM, Joachim Geidel wrote: > > Am 09.06.10 08:06 schrieb StÃ©phane Ducasse: >> We would love to have a version of alien working for pharo on all platform. > > IMO, this would make it necessary to move all extensions of system classes > (with the exception of the #asAlien conversion methods) to Alien-Prereqs, > and have different versions of this package for Pharo 1.0, Pharo 1.1, and > Squeak 4.1. Can this be done with Metacello, or is Metacello a Pharo-only > thing? I am a newbie here, I simply haven't had the time to look at > Metacello yet. > > Also, the override of > SystemDictionary/SmalltalkImage>>recreateSpecialObjectsArray has to be > eliminated. I have seen that the current Squeak and Pharo images have a 50 > element specialObjectsArray, Alien adds 5 more entries, and there is another > version in the pipeline for Squeak which adds one more for finalization > support. after discussing with igor this point we decided to wait to see what was happening since it made no sense to change this method all the time but to wait for a new VM. > That leaves us with three different versions already. IMHO, it is > not acceptable to override that method. What's needed is a possibility to > extend the array using a well-defined API, intended for VM developers only, > of course. There is a better solution as discussed in the vm mailing-list. Igor proposed a solution and now we are waiting. > >>> In Squeak, this meant removing the Alien-Prereqs package and all >>> Parser/Scanner/MethodNode changes, >> >> what are these? > > Ups, sorry for the confusion. There are changes of Parser and Scanner in > Alien-Prereqs, while Alien-Core contains methods for MethodNode, Compiler, > Decompiler, and CompiledMethod. Most of the latter only change the > printStrings of MethodNodes and CompiledMethods for primitives, and all of > them seem to be completely unnecessary in Squeak 4.1. One method in > MethodNode (MethodNode>>generate) overrides a different implementation both > in Squeak 4.1 and Pharo 1.1, and does not work in both of them. Most of the > overridden methods in Alien-Prereqs actually only changed the error messages > emitted when parsing method sources, others seem to be precursors of methods > which have been integrated into Squeak about two years ago. cleaning the package would be a nice first step. > >>> as they are redundant or obsolete in >>> Squeak 4.1. I have a version of the Alien-Core Monticello package which >>> loads cleanly in Squeak 4.1, if anybody is interested. However, this package >>> does not load in Pharo 1.1 beta 11367 - some of the changes I removed still >>> seem to be needed there. >> >> can you point us to them? > > Not yet. I didn't want to waste my time with an analysis before knowing if > someone else is working on this issue, and might already know what has to be > done. > > Joachim Geidel > > > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

June 9, 2010

Re: [Pharo-users] Alien for Squeak 4.1/Pharo 1.1?

by Joachim Geidel

Am 09.06.10 08:06 schrieb StÃ©phane Ducasse: > We would love to have a version of alien working for pharo on all platform. IMO, this would make it necessary to move all extensions of system classes (with the exception of the #asAlien conversion methods) to Alien-Prereqs, and have different versions of this package for Pharo 1.0, Pharo 1.1, and Squeak 4.1. Can this be done with Metacello, or is Metacello a Pharo-only thing? I am a newbie here, I simply haven't had the time to look at Metacello yet. Also, the override of SystemDictionary/SmalltalkImage>>recreateSpecialObjectsArray has to be eliminated. I have seen that the current Squeak and Pharo images have a 50 element specialObjectsArray, Alien adds 5 more entries, and there is another version in the pipeline for Squeak which adds one more for finalization support. That leaves us with three different versions already. IMHO, it is not acceptable to override that method. What's needed is a possibility to extend the array using a well-defined API, intended for VM developers only, of course. >> In Squeak, this meant removing the Alien-Prereqs package and all >> Parser/Scanner/MethodNode changes, > > what are these? Ups, sorry for the confusion. There are changes of Parser and Scanner in Alien-Prereqs, while Alien-Core contains methods for MethodNode, Compiler, Decompiler, and CompiledMethod. Most of the latter only change the printStrings of MethodNodes and CompiledMethods for primitives, and all of them seem to be completely unnecessary in Squeak 4.1. One method in MethodNode (MethodNode>>generate) overrides a different implementation both in Squeak 4.1 and Pharo 1.1, and does not work in both of them. Most of the overridden methods in Alien-Prereqs actually only changed the error messages emitted when parsing method sources, others seem to be precursors of methods which have been integrated into Squeak about two years ago. >> as they are redundant or obsolete in >> Squeak 4.1. I have a version of the Alien-Core Monticello package which >> loads cleanly in Squeak 4.1, if anybody is interested. However, this package >> does not load in Pharo 1.1 beta 11367 - some of the changes I removed still >> seem to be needed there. > > can you point us to them? Not yet. I didn't want to waste my time with an analysis before knowing if someone else is working on this issue, and might already know what has to be done. Joachim Geidel

June 9, 2010

Re: [Pharo-users] JNIPort preview for Pharo available on SqueakSource

by StÃ©phane Ducasse

On Jun 9, 2010, at 7:35 AM, Tudor Girba wrote: > Hi Johan, > > It is not only reasoning about Java. A connection to Java is very useful to communicate with Java libraries (for example, graph libraries). +1 such as a PHP parser > Also, what Johan Brichau did in VW was to directly query Eclipse for reasoning about Java. Pretty cool :) > > Cheers, > Doru > >

June 9, 2010

Re: [Pharo-users] Alien for Squeak 4.1/Pharo 1.1?

by StÃ©phane Ducasse

We would love to have a version of alien working for pharo on all platform. On Jun 8, 2010, at 9:49 PM, Joachim Geidel wrote: > I somehow managed to load Alien into both Squeak 4.1 and Pharo 1.1. You can > see what I had to do in the installation instructions for JNIPort on > SqueakSource. It's not for the faint of heart... ;-) > > In Squeak, this meant removing the Alien-Prereqs package and all > Parser/Scanner/MethodNode changes, what are these? > as they are redundant or obsolete in > Squeak 4.1. I have a version of the Alien-Core Monticello package which > loads cleanly in Squeak 4.1, if anybody is interested. However, this package > does not load in Pharo 1.1 beta 11367 - some of the changes I removed still > seem to be needed there. can you point us to them? > > What are the plans for Alien? When will it be made available for Squeak 4.1 > and Pharo 1.1? I am interested in this because I need Alien as the base for > JNIPort, and I would like to at least run the JNIPort test suite on a stable > version of Alien before officially releasing JNIPort 2.0. > > Joachim Geidel > > > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

June 9, 2010

Re: [Pharo-users] JNIPort preview for Pharo available on SqueakSource

by Tudor Girba

Hi Johan, It is not only reasoning about Java. A connection to Java is very useful to communicate with Java libraries (for example, graph libraries). Also, what Johan Brichau did in VW was to directly query Eclipse for reasoning about Java. Pretty cool :) Cheers, Doru On 8 Jun 2010, at 23:27, Johan Fabry wrote: > > The problem with the Moose and reasoning about Java thing (I think > this is what you are thinking about) is to keep the importer > maintained, as Doru convinced me. In the end the infusion way works > OK for me, so right now I am not looking for another solution. If > one presents itself I am happy to give it a try :-) > > On 08 Jun 2010, at 11:13, StÃ©phane Ducasse wrote: > >> Cool we are really busy but really interested. >> We want to connect moose to java.... so what you are doing and also >> johan is key for us. >> >> On Jun 7, 2010, at 7:07 PM, Joachim Geidel wrote: >> >>> I have made a preview release of JNIPort for Pharo/Squeak >>> available on SqueakSource: >>> http://www.squeaksource.com/JNIPort.html >>> >>> JNIPort is a Smalltalk library which allows Java code to be >>> invoked from Smalltalk. It acts as a bridge between the world of >>> Smalltalk objects and a Java Virtual Machine (JVM) where Java code >>> is executing. >>> >>> If you want to know what can be done with JNIPort, see >>> http://philemonworks.wordpress.com/2010/04/29/google-api-access-from-smallt… >>> for an example. >>> >>> Installation instructions are on the Wiki at SqueakSource. See http://jniport.wikispaces.com/ >>> for more information about JNIPort. >>> >>> The current state of the Pharo/Squeak version of JNIPort (as of 7 >>> June 2010): >>> â¢ Callbacks from Java to Smalltalk are not yet supported. >>> â¢ In contrast to VisualWorks and Dolphin, JNIPort does not create >>> ghost classes as wrappers for Java classes, but creates ârealâ >>> classes which can be seen in the system browser. It also does not >>> copy prototypes of CompiledMethods when a wrapper class or a Java >>> class is created, because this causes VM failures in Pharo 1.0. >>> Instead, methods are compiled from source code. This has a >>> performance impact, of course. >>> â¢ Another difference from the VisualWorks and Dolphin versions is >>> that wrappers for Java methods without arguments donât have >>> selectors ending with an awkward â_nullâ suffix. >>> â¢ JNIPort has been developed and tested with Pharo 1.0 on Mac OS >>> X 10.6.3. If it works in Squeak and on other operating systems has >>> yet to be tested. >>> â¢ I have briefly tested JNIPort with Pharo 1.1 beta 11367, but >>> this needed some manual modifications of Alien â without them >>> Alien causes problems in Pharo 1.1. >>> â¢ In Pharo 1.1, starting a JVM needs 11 seconds vs. 4 seconds in >>> Pharo 1.0. I donât know yet why. >>> â¢ I donât have a Metacello configuration yet. >>> >>> The next steps will be: >>> â¢ Adding support for callbacks from Java to Smalltalk. >>> â¢ Testing it on more platforms. >>> â¢ Reorganization of the documentation on the JNIPort wiki, and >>> addition of Pharo/Squeak specific documentation similar to the >>> documentation for the VisualWorks version. >>> â¢ Release of JNIPort 2.0 for VisualWorks and Pharo/Squeak when >>> everything is stable. This will be after the release of Pharo 1.1. >>> >>> If it works in Squeak 4.1 or on Linux or Windows, please let me >>> know, especially if you had to do something which might be worth >>> mentioning in the installation instructions. >>> >>> Have fun with JNIPort, and let me know if it works! >>> >>> Joachim Geidel >>> _______________________________________________ >>> Pharo-users mailing list >>> Pharo-users(a)lists.gforge.inria.fr >>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >> >> >> _______________________________________________ >> Pharo-users mailing list >> Pharo-users(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users > > -- > Johan Fabry > jfabry(a)dcc.uchile.cl - http://dcc.uchile.cl/~jfabry > PLEIAD Lab - Computer Science Department (DCC) - University of Chile > > > > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users -- www.tudorgirba.com "Reasonable is what we are accustomed with."

June 9, 2010

Re: [Pharo-users] JNIPort preview for Pharo available on SqueakSource

by Johan Fabry

The problem with the Moose and reasoning about Java thing (I think this is what you are thinking about) is to keep the importer maintained, as Doru convinced me. In the end the infusion way works OK for me, so right now I am not looking for another solution. If one presents itself I am happy to give it a try :-) On 08 Jun 2010, at 11:13, StÃ©phane Ducasse wrote: > Cool we are really busy but really interested. > We want to connect moose to java.... so what you are doing and also johan is key for us. > > On Jun 7, 2010, at 7:07 PM, Joachim Geidel wrote: > >> I have made a preview release of JNIPort for Pharo/Squeak available on SqueakSource: >> http://www.squeaksource.com/JNIPort.html >> >> JNIPort is a Smalltalk library which allows Java code to be invoked from Smalltalk. It acts as a bridge between the world of Smalltalk objects and a Java Virtual Machine (JVM) where Java code is executing. >> >> If you want to know what can be done with JNIPort, see >> http://philemonworks.wordpress.com/2010/04/29/google-api-access-from-smallt… >> for an example. >> >> Installation instructions are on the Wiki at SqueakSource. See http://jniport.wikispaces.com/ for more information about JNIPort. >> >> The current state of the Pharo/Squeak version of JNIPort (as of 7 June 2010): >> â¢ Callbacks from Java to Smalltalk are not yet supported. >> â¢ In contrast to VisualWorks and Dolphin, JNIPort does not create ghost classes as wrappers for Java classes, but creates ârealâ classes which can be seen in the system browser. It also does not copy prototypes of CompiledMethods when a wrapper class or a Java class is created, because this causes VM failures in Pharo 1.0. Instead, methods are compiled from source code. This has a performance impact, of course. >> â¢ Another difference from the VisualWorks and Dolphin versions is that wrappers for Java methods without arguments donât have selectors ending with an awkward â_nullâ suffix. >> â¢ JNIPort has been developed and tested with Pharo 1.0 on Mac OS X 10.6.3. If it works in Squeak and on other operating systems has yet to be tested. >> â¢ I have briefly tested JNIPort with Pharo 1.1 beta 11367, but this needed some manual modifications of Alien â without them Alien causes problems in Pharo 1.1. >> â¢ In Pharo 1.1, starting a JVM needs 11 seconds vs. 4 seconds in Pharo 1.0. I donât know yet why. >> â¢ I donât have a Metacello configuration yet. >> >> The next steps will be: >> â¢ Adding support for callbacks from Java to Smalltalk. >> â¢ Testing it on more platforms. >> â¢ Reorganization of the documentation on the JNIPort wiki, and addition of Pharo/Squeak specific documentation similar to the documentation for the VisualWorks version. >> â¢ Release of JNIPort 2.0 for VisualWorks and Pharo/Squeak when everything is stable. This will be after the release of Pharo 1.1. >> >> If it works in Squeak 4.1 or on Linux or Windows, please let me know, especially if you had to do something which might be worth mentioning in the installation instructions. >> >> Have fun with JNIPort, and let me know if it works! >> >> Joachim Geidel >> _______________________________________________ >> Pharo-users mailing list >> Pharo-users(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users > > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users -- Johan Fabry jfabry(a)dcc.uchile.cl - http://dcc.uchile.cl/~jfabry PLEIAD Lab - Computer Science Department (DCC) - University of Chile

June 8, 2010

Alien for Squeak 4.1/Pharo 1.1?

by Joachim Geidel

I somehow managed to load Alien into both Squeak 4.1 and Pharo 1.1. You can see what I had to do in the installation instructions for JNIPort on SqueakSource. It's not for the faint of heart... ;-) In Squeak, this meant removing the Alien-Prereqs package and all Parser/Scanner/MethodNode changes, as they are redundant or obsolete in Squeak 4.1. I have a version of the Alien-Core Monticello package which loads cleanly in Squeak 4.1, if anybody is interested. However, this package does not load in Pharo 1.1 beta 11367 - some of the changes I removed still seem to be needed there. What are the plans for Alien? When will it be made available for Squeak 4.1 and Pharo 1.1? I am interested in this because I need Alien as the base for JNIPort, and I would like to at least run the JNIPort test suite on a stable version of Alien before officially releasing JNIPort 2.0. Joachim Geidel

June 8, 2010

Re: [Pharo-users] JNIPort preview for Pharo available on SqueakSource

by Tudor Girba

Indeed, we are very much interested in all this work! Doru On 8 Jun 2010, at 17:13, StÃ©phane Ducasse wrote: > Cool we are really busy but really interested. > We want to connect moose to java.... so what you are doing and also > johan is key for us. > > On Jun 7, 2010, at 7:07 PM, Joachim Geidel wrote: > >> I have made a preview release of JNIPort for Pharo/Squeak available >> on SqueakSource: >> http://www.squeaksource.com/JNIPort.html >> >> JNIPort is a Smalltalk library which allows Java code to be >> invoked from Smalltalk. It acts as a bridge between the world of >> Smalltalk objects and a Java Virtual Machine (JVM) where Java code >> is executing. >> >> If you want to know what can be done with JNIPort, see >> http://philemonworks.wordpress.com/2010/04/29/google-api-access-from-smallt… >> for an example. >> >> Installation instructions are on the Wiki at SqueakSource. See http://jniport.wikispaces.com/ >> for more information about JNIPort. >> >> The current state of the Pharo/Squeak version of JNIPort (as of 7 >> June 2010): >> â¢ Callbacks from Java to Smalltalk are not yet supported. >> â¢ In contrast to VisualWorks and Dolphin, JNIPort does not create >> ghost classes as wrappers for Java classes, but creates ârealâ >> classes which can be seen in the system browser. It also does not >> copy prototypes of CompiledMethods when a wrapper class or a Java >> class is created, because this causes VM failures in Pharo 1.0. >> Instead, methods are compiled from source code. This has a >> performance impact, of course. >> â¢ Another difference from the VisualWorks and Dolphin versions is >> that wrappers for Java methods without arguments donât have >> selectors ending with an awkward â_nullâ suffix. >> â¢ JNIPort has been developed and tested with Pharo 1.0 on Mac OS X >> 10.6.3. If it works in Squeak and on other operating systems has >> yet to be tested. >> â¢ I have briefly tested JNIPort with Pharo 1.1 beta 11367, but >> this needed some manual modifications of Alien â without them Alien >> causes problems in Pharo 1.1. >> â¢ In Pharo 1.1, starting a JVM needs 11 seconds vs. 4 seconds in >> Pharo 1.0. I donât know yet why. >> â¢ I donât have a Metacello configuration yet. >> >> The next steps will be: >> â¢ Adding support for callbacks from Java to Smalltalk. >> â¢ Testing it on more platforms. >> â¢ Reorganization of the documentation on the JNIPort wiki, and >> addition of Pharo/Squeak specific documentation similar to the >> documentation for the VisualWorks version. >> â¢ Release of JNIPort 2.0 for VisualWorks and Pharo/Squeak when >> everything is stable. This will be after the release of Pharo 1.1. >> >> If it works in Squeak 4.1 or on Linux or Windows, please let me >> know, especially if you had to do something which might be worth >> mentioning in the installation instructions. >> >> Have fun with JNIPort, and let me know if it works! >> >> Joachim Geidel >> _______________________________________________ >> Pharo-users mailing list >> Pharo-users(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users > > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users -- www.tudorgirba.com "Not knowing how to do something is not an argument for how it cannot be done."

June 8, 2010

Re: [Pharo-users] JNIPort preview for Pharo available on SqueakSource

by StÃ©phane Ducasse

Cool we are really busy but really interested. We want to connect moose to java.... so what you are doing and also johan is key for us. On Jun 7, 2010, at 7:07 PM, Joachim Geidel wrote: > I have made a preview release of JNIPort for Pharo/Squeak available on SqueakSource: > http://www.squeaksource.com/JNIPort.html > > JNIPort is a Smalltalk library which allows Java code to be invoked from Smalltalk. It acts as a bridge between the world of Smalltalk objects and a Java Virtual Machine (JVM) where Java code is executing. > > If you want to know what can be done with JNIPort, see > http://philemonworks.wordpress.com/2010/04/29/google-api-access-from-smallt… > for an example. > > Installation instructions are on the Wiki at SqueakSource. See http://jniport.wikispaces.com/ for more information about JNIPort. > > The current state of the Pharo/Squeak version of JNIPort (as of 7 June 2010): > â¢ Callbacks from Java to Smalltalk are not yet supported. > â¢ In contrast to VisualWorks and Dolphin, JNIPort does not create ghost classes as wrappers for Java classes, but creates ârealâ classes which can be seen in the system browser. It also does not copy prototypes of CompiledMethods when a wrapper class or a Java class is created, because this causes VM failures in Pharo 1.0. Instead, methods are compiled from source code. This has a performance impact, of course. > â¢ Another difference from the VisualWorks and Dolphin versions is that wrappers for Java methods without arguments donât have selectors ending with an awkward â_nullâ suffix. > â¢ JNIPort has been developed and tested with Pharo 1.0 on Mac OS X 10.6.3. If it works in Squeak and on other operating systems has yet to be tested. > â¢ I have briefly tested JNIPort with Pharo 1.1 beta 11367, but this needed some manual modifications of Alien â without them Alien causes problems in Pharo 1.1. > â¢ In Pharo 1.1, starting a JVM needs 11 seconds vs. 4 seconds in Pharo 1.0. I donât know yet why. > â¢ I donât have a Metacello configuration yet. > > The next steps will be: > â¢ Adding support for callbacks from Java to Smalltalk. > â¢ Testing it on more platforms. > â¢ Reorganization of the documentation on the JNIPort wiki, and addition of Pharo/Squeak specific documentation similar to the documentation for the VisualWorks version. > â¢ Release of JNIPort 2.0 for VisualWorks and Pharo/Squeak when everything is stable. This will be after the release of Pharo 1.1. > > If it works in Squeak 4.1 or on Linux or Windows, please let me know, especially if you had to do something which might be worth mentioning in the installation instructions. > > Have fun with JNIPort, and let me know if it works! > > Joachim Geidel > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

June 8, 2010

Re: [Pharo-users] JNIPort preview for Pharo available on SqueakSource

by Mariano Martinez Peck

great work. Congratulations. I cc'ed pharo mailing list. cheers mariano On Mon, Jun 7, 2010 at 7:07 PM, Joachim Geidel <joachim.geidel(a)onlinehome.de > wrote: > I have made a preview release of JNIPort for Pharo/Squeak available on > SqueakSource: > http://www.squeaksource.com/JNIPort.html > > JNIPort is a Smalltalk library which allows Java code to be invoked from > Smalltalk. It acts as a bridge between the world of Smalltalk objects and a > Java Virtual Machine (JVM) where Java code is executing. > > If you want to know what can be done with JNIPort, see > > http://philemonworks.wordpress.com/2010/04/29/google-api-access-from-smallt… > for an example. > > Installation instructions are on the Wiki at SqueakSource. See > http://jniport.wikispaces.com/ for more information about JNIPort. > > The current state of the Pharo/Squeak version of JNIPort (as of 7 June > 2010): > > - Callbacks from Java to Smalltalk are not yet supported. > - In contrast to VisualWorks and Dolphin, JNIPort does not create ghost > classes as wrappers for Java classes, but creates ârealâ classes which can > be seen in the system browser. It also does not copy prototypes of > CompiledMethods when a wrapper class or a Java class is created, because > this causes VM failures in Pharo 1.0. Instead, methods are compiled from > source code. This has a performance impact, of course. > - Another difference from the VisualWorks and Dolphin versions is that > wrappers for Java methods without arguments donât have selectors ending with > an awkward â_nullâ suffix. > - JNIPort has been developed and tested with Pharo 1.0 on Mac OS X > 10.6.3. If it works in Squeak and on other operating systems has yet to be > tested. > - I have briefly tested JNIPort with Pharo 1.1 beta 11367, but this > needed some manual modifications of Alien â without them Alien causes > problems in Pharo 1.1. > - In Pharo 1.1, starting a JVM needs 11 seconds vs. 4 seconds in Pharo > 1.0. I donât know yet why. > - I donât have a Metacello configuration yet. > > > The next steps will be: > > - Adding support for callbacks from Java to Smalltalk. > - Testing it on more platforms. > - Reorganization of the documentation on the JNIPort wiki, and addition > of Pharo/Squeak specific documentation similar to the documentation for the > VisualWorks version. > - Release of JNIPort 2.0 for VisualWorks and Pharo/Squeak when > everything is stable. This will be after the release of Pharo 1.1. > > > If it works in Squeak 4.1 or on Linux or Windows, please let me know, > especially if you had to do something which might be worth mentioning in the > installation instructions. > > Have fun with JNIPort, and let me know if it works! > > Joachim Geidel > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users > >

June 7, 2010

JNIPort preview for Pharo available on SqueakSource

by Joachim Geidel

I have made a preview release of JNIPort for Pharo/Squeak available on SqueakSource: http://www.squeaksource.com/JNIPort.html JNIPort is a Smalltalk library which allows Java code to be invoked from Smalltalk. It acts as a bridge between the world of Smalltalk objects and a Java Virtual Machine (JVM) where Java code is executing. If you want to know what can be done with JNIPort, see http://philemonworks.wordpress.com/2010/04/29/google-api-access-from-smallta lk-using-jniport/ for an example. Installation instructions are on the Wiki at SqueakSource. See http://jniport.wikispaces.com/ for more information about JNIPort. The current state of the Pharo/Squeak version of JNIPort (as of 7 June 2010): * Callbacks from Java to Smalltalk are not yet supported. * In contrast to VisualWorks and Dolphin, JNIPort does not create ghost classes as wrappers for Java classes, but creates Â³realÂ² classes which can be seen in the system browser. It also does not copy prototypes of CompiledMethods when a wrapper class or a Java class is created, because this causes VM failures in Pharo 1.0. Instead, methods are compiled from source code. This has a performance impact, of course. * Another difference from the VisualWorks and Dolphin versions is that wrappers for Java methods without arguments donÂ¹t have selectors ending with an awkward Â³_nullÂ² suffix. * JNIPort has been developed and tested with Pharo 1.0 on Mac OS X 10.6.3. If it works in Squeak and on other operating systems has yet to be tested. * I have briefly tested JNIPort with Pharo 1.1 beta 11367, but this needed some manual modifications of Alien Â without them Alien causes problems in Pharo 1.1. * In Pharo 1.1, starting a JVM needs 11 seconds vs. 4 seconds in Pharo 1.0. I donÂ¹t know yet why. * I donÂ¹t have a Metacello configuration yet. The next steps will be: * Adding support for callbacks from Java to Smalltalk. * Testing it on more platforms. * Reorganization of the documentation on the JNIPort wiki, and addition of Pharo/Squeak specific documentation similar to the documentation for the VisualWorks version. * Release of JNIPort 2.0 for VisualWorks and Pharo/Squeak when everything is stable. This will be after the release of Pharo 1.1. If it works in Squeak 4.1 or on Linux or Windows, please let me know, especially if you had to do something which might be worth mentioning in the installation instructions. Have fun with JNIPort, and let me know if it works! Joachim Geidel

June 7, 2010

Re: [Pharo-users] [Pharo-project] [JOB] We are Looking for a Pharo Engineer

by Marcus Denker

On Jun 7, 2010, at 3:54 PM, Niko Schwarz wrote: > Is there a website with this text that I can link to? > http://rmod.lille.inria.fr/web/pier/blog/2010-06-07 Marcus -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

June 7, 2010

[JOB] We are Looking for a Pharo Engineer

by Marcus Denker

Hello, INRIA RMOD is looking for a full-time engineer for helping with Pharo development. As researchers, we need a really great system to explore new ideas with. The job of the engineer is to help us by improving the infrastructure we use for our work. What this of course means is that it's kind of a cool job: work in a research lab, but no paper writing, no teaching, no administration. In addition: - live in France (one hour from Paris, 1h20 from London, 35 min from Brussels) - try a lot of good beers (our office is just 10km from the border to Belgium) - french food - code all the day in Smalltalk and a bit of C Apparently from what the DHR services told us, the salary will depend on years of expertise and diplomas. We can think that 2700 Euros (before final taxes) should be a good working number for a candidate of the experience we are looking for. In France the employer pays already social security and pension. So the salary already includes lots (and lots) of deductions compared to e.g. a german brutto salary. Lille is an active city but not expensive (lot of students...), centrally located with good connections by train to everywhere (including CDG and Brussels airports). The job will to continue making Pharo better - better tools - better network support - better compiler infrastructure - improve the VM - help with day-to-day bug fixing and constant improvement Therefore we are looking for a candidate with some years of Smalltalk (possible Pharo/Squeak) background. Duration: 30 months Starting date: October 2010 Location: Lille (no remote job possible) Official Job Description and Application via: http://bit.ly/dyhdba Deadline: 15 July 2010 More about INRIA Lille: http://www.inria.fr/lille/ INRIA in General: http://www.inria.fr Engineers at INRIA: http://www.inria.fr/travailler/metiers/accompagnement/dev_applications.en.h… Lille: http://en.wikipedia.org/wiki/Lille http://www.mairie-lille.fr/en http://wikitravel.org/en/Lille Do not hesitate to contact us for more information. Stef/Marcus -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

June 7, 2010

Next smalltalk meetup in cologne

by Norbert Hartl

Hi! Just a short reminder that the next Cologne Smalltalk Meetup will be happening this Thursday at the usual time and location. For any details have a look at [1] and [2]. Cheers, Alex [1] http://colstme.selfish.org/events/stammtisch03 [2] http://colstme.selfish.org/blog/2010-06-02

June 7, 2010

Pharocasts: GUI - Proportional layout

by laurent laffont

Hi, here's the screencast based on the GUI layout section of the Pharo book. http://pharocasts.blogspot.com/2010/06/proportional-layout.html I found a better (but not perfect) tool to edit subtitles on Linux: Jubler http://www.jubler.org/ , it's cross-platform. See http://www.my-guides.net/en/content/view/105/26/ Cheers, Laurent Laffont http://pharocasts.blogspot.com/ http://magaloma.blogspot.com/

June 6, 2010

Re: [Pharo-users] A Day At The Beach

by StÃ©phane Ducasse

Thanks sven. I remember your tutorial. Now head to the future, do not hesitate to join making pharo better :) Stef On Jun 4, 2010, at 6:28 PM, Sven Van Caekenberghe wrote: > Hi, > > Back in 2003, when Seaside was still very young, I wrote a short article about our initial exposure to Seaside. Recently, I went back to Seaside (and Pharo), pleasantly surprised by the immense progress made since then. So I decided to update the article, the code and the screenshots. It is targeted at people new to Seaside and Smalltalk. > > http://homepage.mac.com/svc/ADayAtTheBeach > > The examples are now also live. > > http://caretaker.wolf359.be:8080/ > > To all those who worked on Seaside/Squeak/Pharo since then: thank you ! You have much to be proud of. > > BTW, consider this my 'hello' message to this list, I am new. As far as I am concerned, Pharo rocks. > > Sven > > PS: This was the original posting http://lists.squeakfoundation.org/pipermail/seaside/2003-November/002297.ht… > > -- > Sven Van Caekenberghe - http://homepage.mac.com/svc > Beta Nine - software engineering - http://www.beta9.be > > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

June 5, 2010

A Day At The Beach

by Sven Van Caekenberghe

Hi, Back in 2003, when Seaside was still very young, I wrote a short article about our initial exposure to Seaside. Recently, I went back to Seaside (and Pharo), pleasantly surprised by the immense progress made since then. So I decided to update the article, the code and the screenshots. It is targeted at people new to Seaside and Smalltalk. http://homepage.mac.com/svc/ADayAtTheBeach The examples are now also live. http://caretaker.wolf359.be:8080/ To all those who worked on Seaside/Squeak/Pharo since then: thank you ! You have much to be proud of. BTW, consider this my 'hello' message to this list, I am new. As far as I am concerned, Pharo rocks. Sven PS: This was the original posting http://lists.squeakfoundation.org/pipermail/seaside/2003-November/002297.ht… -- Sven Van Caekenberghe - http://homepage.mac.com/svc Beta Nine - software engineering - http://www.beta9.be

June 4, 2010

Re: [Pharo-users] Debugging "Error: Could not access..."

by Michael Roberts

Sorry.... The set break is on the (classic) implementors browser on the context menu of the method list Cheers Mike On 3 Jun 2010, at 08:41, Geert Claes <geert.wl.claes(a)gmail.com> wrote: > > > Michael Roberts-2 wrote: >> >> One way is to >> -bring up the morphic halo (shift-alt on mac) and click until you >> have >> the pluggable button selected. >> -click the debug halo (spanner) and say inspect morph. >> -see the actionSelector is openRepository >> > > I managed to get to this step :) How do I set a "toggle break on > entry"? > > > Michael Roberts-2 wrote: >> >> -browse implementors, there is only one >> -correlate this with the model >> -toggle break on entry in the method view >> -press the button >> > -- > View this message in context: http://forum.world.st/Debugging-Error-Could-not-access-tp2228445p2241313.ht… > Sent from the Pharo Smalltalk Users mailing list archive at > Nabble.com. > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

June 3, 2010

Re: [Pharo-users] Debugging "Error: Could not access..."

by Michael Roberts

On 3 Jun 2010, at 08:41, Geert Claes <geert.wl.claes(a)gmail.com> wrote: > > > Michael Roberts-2 wrote: >> >> One way is to >> -bring up the morphic halo (shift-alt on mac) and click until you >> have >> the pluggable button selected. >> -click the debug halo (spanner) and say inspect morph. >> -see the actionSelector is openRepository >> > > I managed to get to this step :) How do I set a "toggle break on > entry"? > > > Michael Roberts-2 wrote: >> >> -browse implementors, there is only one >> -correlate this with the model >> -toggle break on entry in the method view >> -press the button >> > -- > View this message in context: http://forum.world.st/Debugging-Error-Could-not-access-tp2228445p2241313.ht… > Sent from the Pharo Smalltalk Users mailing list archive at > Nabble.com. > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

June 3, 2010

Re: [Pharo-users] Debugging "Error: Could not access..."

by Geert Claes

Michael Roberts-2 wrote: > > One way is to > -bring up the morphic halo (shift-alt on mac) and click until you have > the pluggable button selected. > -click the debug halo (spanner) and say inspect morph. > -see the actionSelector is openRepository > I managed to get to this step :) How do I set a "toggle break on entry"? Michael Roberts-2 wrote: > > -browse implementors, there is only one > -correlate this with the model > -toggle break on entry in the method view > -press the button > -- View this message in context: http://forum.world.st/Debugging-Error-Could-not-access-tp2228445p2241313.ht… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

June 3, 2010