- Pharo-dev - lists.pharo.org

Re: [Pharo-project] Good practicces! Looking for examples

by merlyn＠stonehenge.com

>>>>> "Franz" == Franz Josef Konrad <franzl(a)fjkonrad.de> writes: Franz> Stef, Franz> you should also refere to Kent Beck's book "SmallTalk Best Practice Patterns" Franz> in your chapter. IMHO it's one of the best Smalltalk books written in this Franz> area. But... it's not "SmallTalk"... it's "Smalltalk". I wonder why people keep doing that. -- Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095 <merlyn(a)stonehenge.com> <URL:http://www.stonehenge.com/merlyn/> Smalltalk/Perl/Unix consulting, Technical writing, Comedy, etc. etc. See http://methodsandmessages.posterous.com/ for Smalltalk discussion

Dec. 25, 2011

Re: [Pharo-project] Good practicces! Looking for examples

by Oscar Nierstrasz

Don't forget, there are lectures on idioms and best practice patterns with lots of examples in the Smalltalk course. https://www.iam.unibe.ch/scg/svn_repos/Lectures/Smalltalk/ Many of these come from Kent Beck's book. - on On 25 Dec 2011, at 10:11, StÃ©phane Ducasse wrote: > indeed the presentation is quite good and I like the tips section. > Right now I started to collect coding examples (i.e. do not use , but nextPutAll:â¦.). > > Stef > > On Dec 25, 2011, at 3:26 AM, Damien Pollet wrote: > >> On 24 December 2011 14:53, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: >>> If you have some suggestions with examples I could integrate to the chapter. >> >> HernÃ¡n had a good list in his talk on the design of patagonia: >> http://www.slideshare.net/esug/design-principlesbehindpatagonia >> >> -- >> Damien Pollet >> type less, do more [ | ] http://people.untyped.org/damien.pollet >> > >

Dec. 25, 2011

Re: [Pharo-project] [update 1.4] #14267

by StÃ©phane Ducasse

It does not work so I rolled back 14267 and 14268. Stef > 14267 > ----- > > - Issue 5113: Use ZnClient instead of HttpClient. > Let us try to see if the update stream is ok after that one. > > Stef >

Dec. 25, 2011

[Pharo-project] [update 1.4] #14267

by stephane ducasse

14267 ----- - Issue 5113: Use ZnClient instead of HttpClient. Let us try to see if the update stream is ok after that one. Stef

Dec. 25, 2011

[Pharo-project] [update 1.4] #14268

by StÃ©phane Ducasse

14268 ----- - Issue 5126: french Date format. Thanks Olivier Overlot. http://code.google.com/p/pharo/issues/detail?id=5126

Dec. 25, 2011

Re: [Pharo-project] Good practicces! Looking for examples

by Franz Josef Konrad

Stef, you should also refere to Kent Beck's book "SmallTalk Best Practice Patterns" in your chapter. IMHO it's one of the best Smalltalk books written in this area. Franz Josef Am 24.12.2011 14:53, schrieb StÃ©phane Ducasse: > Hi guys > > talking with sven during the last sprint we realized that it would be good to collect and document some good practices. > So I started a chapter for PBE2 on coding practices. > > I will take the some of the optimization that sven did in time/date printOn: as a start > > If you have some suggestions with examples I could integrate to the chapter. > > > Stef > > >

Dec. 25, 2011

[Pharo-project] [update 1.4] #14266

by StÃ©phane Ducasse

14266 ----- - Issue 5117: MNU: Transcripter class>>open. Thanks vpnbecmann. http://code.google.com/p/pharo/issues/detail?id=5117 - Issue 5122: ZnUpdate-Dec-20. Thanks sven van caekenberghe. http://code.google.com/p/pharo/issues/detail?id=5120 Stef

Dec. 25, 2011

Re: [Pharo-project] IdentitySet but using #hash rather than #identityHash ?

by Andres Valloud

I betcha the performance problem is because the collision "trains" end up hitting each other. In this case you likely won't be able to avoid collisions. So, instead of the regular hashed collections that use open addressing linear probing, use a hashed collection that stores objects in hash buckets. It would be great if hashed collections did not inline a specific storage strategy, but alas... :(. On 12/12/11 0:58 , Mariano Martinez Peck wrote: > Hi guys. I hope this is not a very stupid question. Background: in Fuel > we have a IdentityDictionary where we put each of the objects we find > while traversing the graph. We need to use IdentitySet because we cannot > have repetitions (and to avoid loops) so we NEED to use #==. In such > dictionary we put ALL objects of the graph, so it can be very big. Since > IdentitySet uses #identityHash, it means it will be using those ONLY 12 > bits in the object header. It means that we have 2^12 = 4096 different > values. > > Question: having explained the previous, I wanted to be able to use > #hash rather than #identityHash since several classes implement #hash > and hence I thought that using #hash I could have less colisions and > hence a better performance. I tried to make a subclass of IdentitySet > that uses #hash rather than #identityHash but my image freezes. I also > tried something like: > > set := PluggableSet new. > set hashBlock: [ :elem | elem hash ]. > set equalBlock: [ :a :b | a == b ]. > > But it doesn't work either. I works with simple tests in a workspace but > when I run the full tests of Fuel, it enters in a loop in the method > #hash of Collection.. > > Anyway, my question is, should that work? if not, what is the exact reason? > > Thanks in advance, > > -- > Mariano > http://marianopeck.wordpress.com >

Dec. 25, 2011

Re: [Pharo-project] Good practicces! Looking for examples

by StÃ©phane Ducasse

indeed the presentation is quite good and I like the tips section. Right now I started to collect coding examples (i.e. do not use , but nextPutAll:â¦.). Stef On Dec 25, 2011, at 3:26 AM, Damien Pollet wrote: > On 24 December 2011 14:53, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: >> If you have some suggestions with examples I could integrate to the chapter. > > HernÃ¡n had a good list in his talk on the design of patagonia: > http://www.slideshare.net/esug/design-principlesbehindpatagonia > > -- > Damien Pollet > type less, do more [ | ] http://people.untyped.org/damien.pollet >

Dec. 25, 2011

Re: [Pharo-project] Good practicces! Looking for examples

by Damien Pollet

On 24 December 2011 14:53, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> wrote: > If you have some suggestions with examples I could integrate to the chapter. HernÃ¡n had a good list in his talk on the design of patagonia: http://www.slideshare.net/esug/design-principlesbehindpatagonia -- Damien Pollet type less, do more [ | ] http://people.untyped.org/damien.pollet

Dec. 25, 2011