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

Re: [Pharo-project] about ValueAdapter

by StÃ©phane Ducasse

On Aug 27, 2010, at 4:46 PM, Schwab,Wilhelm K wrote: > Stef, > > Got it - I thought you might have meant something completely different. For example, I had a really cool #printOn: method that I had to suppress because the inspector was parsing the text and changing things as a result - arrrrggggGGGGGG!!!!! :) > > Re other methods in the image. My goal was to be as data driven (off of the format) as possible and to get specific things working quickly. Mostly the latter; I just needed a few types of date and time conversions to work, and to work the same way they did when the code ran in Dolphin. > > Even if I had looked around, there are always questions: does it work at all, does it work well, will it survive the next sprint? what will survive? > You are doing a wonderful job, so please don't take that as anything negative. Of course, more tests will allow you to clean freely and immediately note that something was critical to the adpaters. > > Another thing to note, we are under the ValueAdapter thread, but dates and times really fall under type converters. Of course, converters and adapters often work together. A model understands #bodyWeight; a text editor understands #value, and a converter can sit between them to turn the editor's (text) value into a float for the model. It is nice pluggable/serializable stuff that probably makes the most sense in the context of view resources, whether they are saved in binary or not. The 30k ft view is probably to encourage composition rather than to force inheritance. Closures help us. Doing our graphics in Smalltalk can help or hurt, because we can freely change the widgets as needed, which is both valuable freedom and a crutch that can compensate for inflexible design. My suggestion is the following. Show us that this is cool with a nice example. Code is a good value for not native english speakers. Stef > > Bill > > > ________________________________________ > From: pharo-project-bounces(a)lists.gforge.inria.fr [pharo-project-bounces(a)lists.gforge.inria.fr] On Behalf Of StÃ©phane Ducasse [stephane.ducasse(a)inria.fr] > Sent: Friday, August 27, 2010 9:07 AM > To: Pharo-project(a)lists.gforge.inria.fr > Subject: Re: [Pharo-project] about ValueAdapter > > there are a lot of methods to print time and date as well as number and I thought that your adaptor would benefit from them. > > Stef > > On Aug 27, 2010, at 1:49 PM, Schwab,Wilhelm K wrote: > >> Stef, >> >> I generally spend most of my time trying to avoid having the RB do what you are describing, but it should be that simple, right? >> >> As you have noticed, the adapters are very crude, but tests are certainly a good idea. One thing that I miss is a good place to put package comments; I tend to write them more than class comments (they not only identify the important classes, but which ones to use and how, all in one place - who then need class comments?), and then relentlessly comment methods as they evolve. That said, I could probably force out a few class comments. >> >> What do you mean by checking padded printOn? What are they, and how (and for what) would I check them? >> >> Bill >> >> >> ________________________________________ >> From: pharo-project-bounces(a)lists.gforge.inria.fr [pharo-project-bounces(a)lists.gforge.inria.fr] On Behalf Of stephane ducasse [stephane.ducasse(a)free.fr] >> Sent: Friday, August 27, 2010 4:28 AM >> To: Pharo-project(a)lists.gforge.inria.fr Development >> Subject: [Pharo-project] about ValueAdapter >> >> Bill >> >> I scanned the code. >> Could you >> - reformat your code? >> put space after : >> align on the first tab >> - get some more tests? >> - I could not see the class comments but if there are none then please adde something. >> - did you check the padded printon methods and others? >> >> Stef >> _______________________________________________ >> Pharo-project mailing list >> Pharo-project(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >> >> _______________________________________________ >> Pharo-project mailing list >> Pharo-project(a)lists.gforge.inria.fr >> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

Aug. 27, 2010

Re: [Pharo-project] what about putting RBengine in pharo1.2 core?

by StÃ©phane Ducasse

> > Hudson isn't your friend for this ? no when I batch fixes I cannot wait for something that start and can take 15 min. I prefer to update often to separate commit for tracebility so speed in making new image is important. It is already so slow. Stef

Aug. 27, 2010

Re: [Pharo-project] Why has MethodFinder a fixed list of results?

by Nicolas Cellier

2010/8/27 Bart Gauquie <bart.gauquie(a)gmail.com>: > Dear list, > I was showing off Pharo to a colleague today and was surprised that. > > My quick introduction of adding new methods on existing system classes > String>>firstLetter > ^self copyFrom: 1 to: 1 > > - extension on String worked immediately. But that: > in the MethodFinder evaluating: 'tried'.'t' > did not return my method I just added .... :-( > Turns out that MethodFinder has a class side Set of Approved and > AddAndRemove methods. > What is the rationale of this? Should we not allow any method, but exclude > some tricky ones (doesNotUnderstand:, ... )? > Kind Regards, > Bart > > Suppose you feed MethodFinder with Array and #() just to check whether #new is found. Will you be happy after MethodFinder has tried if ever Array removeFromSystem just wouldn't return #() ? Nicolas

Aug. 27, 2010

Re: [Pharo-project] [update 1.2] #12116

by StÃ©phane Ducasse

On Aug 27, 2010, at 3:46 PM, Sven Van Caekenberghe wrote: > > On 27 Aug 2010, at 15:16, StÃ©phane Ducasse wrote: > >> >> 12116 >> ----- >> >> merging webclient pmm 73 > > It seems that every time I upgrade 1.2a using System>Software Update, the version of WebClient-Test reverts as well. Strange where is the other tests packages? in the inbox? > > As I told you, your (older) version gives more unit test errors ;-) > > Sven > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

Aug. 27, 2010

Re: [Pharo-project] About webclient.ppm.73

by StÃ©phane Ducasse

On Aug 27, 2010, at 3:45 PM, Philippe Marschall wrote: > On 08/27/2010 10:22 AM, stephane ducasse wrote: >> hi philippe >> >> I wanted to integrate it in 1.2 but I have 5 conflicts. Should I juste load? >> Is it for 1.2? > > No, it's not. Do you have WebClient already in 1.2 and are trying to > merge against it? If so I can have a look at it. yes we have it in 1.2 and sven merged your changes but it would be great if you can have a look > > Cheers > Philippe > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

Aug. 27, 2010

Re: [Pharo-project] Why has MethodFinder a fixed list of results?

by Marcus Denker

On Aug 27, 2010, at 8:59 PM, Bart Gauquie wrote: > Dear list, > > I was showing off Pharo to a colleague today and was surprised that. > > My quick introduction of adding new methods on existing system classes > > String>>firstLetter > ^self copyFrom: 1 to: 1 > > - extension on String worked immediately. But that: > > in the MethodFinder evaluating: 'tried'.'t' > did not return my method I just added .... :-( > > Turns out that MethodFinder has a class side Set of Approved and AddAndRemove methods. > What is the rationale of this? Should we not allow any method, but exclude some tricky ones (doesNotUnderstand:, ... )? > The rational is that the MethodFinder would, if it would not have a positive list, quite likely call methods that do bad things to the state of the system. Remember that is just calls all methods to check if some leads to the return value that you gave! e.g. Smalltalk.true. takes a while, but it does not try to call #quitPrimitive. Which it would if Methodfinder would not be based on a positive list. It would of course be nice to be able to not need a positive list. The question of how to control side-effects (and how to realize a secure yet reflective language in general) is of course a very interesting one... Marcus -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

Aug. 27, 2010

Re: [Pharo-project] Running Pharo on a headless Ubuntu server

by Jan van de Sandt

Hello, When I run squeakvm directly it works! Thanks for the tip. Jan. On Thu, Aug 26, 2010 at 11:37 PM, Sven Van Caekenberghe <sven(a)beta9.be>wrote: > Jan, > > On 26 Aug 2010, at 22:42, Jan van de Sandt wrote: > > > Hello, > > > > I am trying to run a Pharo Seaside image on an Ubunbtu 10.04 server. When > I start the image like this > > > > squeak -mmap 256m -vm-sound-null -vm-display-null seaside3.0rc.image > > > > I get the following errors: > > > > found gettext in path > > /srv/seaside > > libasound.so.2: cannot open shared object file: No such file or directory > > squeak: could not find any display driver > > /usr/bin/squeak: line 277: 7499 Aborted $VM "$1" "$2" > > > > > > Does anybody know the minimal set of packages I need to install before I > can run a headless image? > > > > Jan. > > The command line options are OK and should work. > You could try running the squeak-vm directly (/usr/bin/squeak is a shell > script). > On Ubuntu it is in /usr/lib/squeak/4.0.3-2202/squeakvm (or some other > version). > > I installed these on Ubuntu 10.04.1, but I am not sure they are needed (I > just did to get rid of the warnings). > > sudo apt-get install libsm6 > sudo apt-get install libaudio2 > sudo apt-get install libpulse0 > sudo apt-get install libglu1-mesa > > On a server they are not really needed. > > HTH, > > Sven > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project > -- Jan van de Sandt gsm: +31 (0)6 3039 5998

Aug. 27, 2010

[Pharo-project] Why has MethodFinder a fixed list of results?

by Bart Gauquie

Dear list, I was showing off Pharo to a colleague today and was surprised that. My quick introduction of adding new methods on existing system classes String>>firstLetter ^self copyFrom: 1 to: 1 - extension on String worked immediately. But that: in the MethodFinder evaluating: 'tried'.'t' did not return my method I just added .... :-( Turns out that MethodFinder has a class side Set of Approved and AddAndRemove methods. What is the rationale of this? Should we not allow any method, but exclude some tricky ones (doesNotUnderstand:, ... )? Kind Regards, Bart

Aug. 27, 2010

Re: [Pharo-project] Experimental Cocoa OS-X based Squeak Cog JIT VM 5.8b3.

by Eliot Miranda

On Fri, Aug 27, 2010 at 1:59 AM, Sven Van Caekenberghe <sven(a)beta9.be>wrote: > > On 26 Aug 2010, at 21:44, Sven Van Caekenberghe wrote: > > > I hope the linux VM is equally fast. > > Is the COG VM capable of running headless on Linux ? > We routinely run it headless on linux using -vm-display-null. > sven@bladerunner:~/Smalltalk$ ./coglinux/bin/squeak -version > 3.9-7 #2 Wed Aug 18 19:45:40 GMT 2010 gcc 4.1.2 > Croquet Closure Cog VM [CoInterpreter VMMaker-oscog.26] > Linux cern 2.6.18-194.8.1.el5PAE #1 SMP Fri Jul 2 10:18:13 CEST 2010 i686 > i686 i386 GNU/Linux > plugin path: /home/sven/Smalltalk/coglinux/lib/squeak/3.9-7/ [default: > /home/sven/Smalltalk/coglinux/lib/squeak/3.9-7/] > > sven@bladerunner:~/Smalltalk$ ./coglinux/bin/squeak -vm-display-null > -vm-sound-null seaside3.lr.cog.image > > This doesn't seem to work, no errors to be seen anywhere. Can I enable some > debugging output ? > Try -sendtrace, e.g. ./coglinux/bin/squeak -vm-display-null -vm-sound-null -sendtrace seaside3.lr.cog.image > This same image runs perfectly well with a display, as in > > sven@bladerunner:~/Smalltalk$ ./coglinux/bin/squeak seaside3.lr.cog.image > What does your image do? Does it depend on any additional plugins or shared objects? Are these also present in your Cog installation? HTH Eliot > > Thx, > > Sven > > > _______________________________________________ > Pharo-project mailing list > Pharo-project(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project >

Aug. 27, 2010

[Pharo-project] [update 1.2] #12118

by StÃ©phane Ducasse

12118 ----- Enhancing method reference with benjamin. Stef

Aug. 27, 2010