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

[Pharo-project] about code formatting in pharo
by stephane ducasse March 1, 2010

March 1, 2010

Hi guys I would like to build a set of canonical code formatting convention for Pharo. I need your help. Now take time before replying :) I would like to structure the discussion and proceed step by step. So at max I would like to discuss one or two formatting approach per mail. Once we agree I would like to define a wiki page. **Space after : rule ============= for example I would like to always have a space after a : classes := Smalltalk allClasses select:[:aClass| (aClass class includesSelector: #cleanUp) or:[aClass class includesSelector: #cleanUp:] ]. -> classes := Smalltalk allClasses select: [:aClass| (aClass class includesSelector: #cleanUp) or: [aClass class includesSelector: #cleanUp:] ]. **Block arg rule ============= Do we want a space before and after block arg Smalltalk allClasses select: [:aClass :method| -> Smalltalk allClasses select: [ :aClass :method | ** selector or block indented compared to receiver ======================================= Finally do we follow kent block ideas? classes := Smalltalk allClasses select: [:aClass| (aClass class includesSelector: #cleanUp) or: [aClass class includesSelector: #cleanUp:] ]. -> classes := Smalltalk allClasses select: [:aClass| (aClass class includesSelector: #cleanUp) or: [aClass class includesSelector: #cleanUp:]]. Stef

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[Pharo-project] [Fwd: [squeak-dev] The Trunk: Kernel-ar.411.mcz]
by Miguel Enrique CobÃ¡ Martinez March 1, 2010

March 1, 2010

Maybe we can add this to the cleanUpForRelease script. Cheers -- Miguel CobÃ¡ http://miguel.leugim.com.mx

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[Pharo-project] Delay startTimerInterruptWatcher in ScriptLoader >> cleanUpMethods -> DNU
by Mariano Martinez Peck March 1, 2010

March 1, 2010

Try to evaluate ScriptLoader new cleanUpMethods and you will see that in ScriptLoader >> cleanUpMethods you do: Delay startTimerInterruptWatcher. and there is the DNU as startTimerInterruptWatcher is never implemented. Solutions ? 1) Remove Delay startTimerInterruptWatcher. from cleanUpMethods 2) Maybe the message should be stopTimerEventLoop ?? I have no idea The only thing I found in the issues was this: http://code.google.com/p/pharo/issues/detail?id=1424 In squeak 3.9 the method is implemented, and like this: startTimerInterruptWatcher "Reset the class variables that keep track of active Delays and re-start the timer interrupt watcher process. Any currently scheduled delays are forgotten." "Delay startTimerInterruptWatcher" | p | self primSignal: nil atMilliseconds: 0. TimingSemaphore == nil ifFalse: [TimingSemaphore terminateProcess]. TimingSemaphore _ Semaphore new. AccessProtect _ Semaphore forMutualExclusion. SuspendedDelays _ SortedCollection sortBlock: [:d1 :d2 | d1 resumptionTime <= d2 resumptionTime]. ActiveDelay _ nil. p _ [self timerInterruptWatcher] newProcess. p priority: Processor timingPriority. p resume.

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[Pharo-project] databases
by laurent laffont March 1, 2010

March 1, 2010

Hi, I would like to learn on Pharo + databases. I've seen there's several solutions in both object and relational databases. - Which (open source) object database should I start with (most used) ? - Which object database can be accessed from Smalltalk AND Ruby or Python ? How ? - I want to try MySQL too. Is there up to date small applications on squeaksource which show this stuff quite well ? Thanks for help ! Laurent Laffont

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[Pharo-project] Streams. Status and where to go?
by Igor Stasenko Feb. 28, 2010

Feb. 28, 2010

Hello, i am cross-posting, since i think it is good for all of us to agree on some common points. 1. Streams needs to be rewritten. 2. What do you think is good replacement for current Streams? personally, i currently need a fast and concise UTF8 reader. The UTF8TextConverter is closest thing what i would take, but i don't understand, why it implemented as a non-stream? The #nextFromStream: and #nextPut:toStream: crying out of loud to be just #next and #nextPut: Another thing which makes me sad is this line: nextFromStream: aStream | character1 value1 character2 value2 unicode character3 value3 character4 value4 | aStream isBinary ifTrue: [^ aStream basicNext]. <<<<<<< All external streams is initially binary , but UTF8TextConverter wants to play with characters, instead of octets.. But hey... UTF8 encoding is exactly about encoding unicode characters into binary form.. I'm not even mentioning that operating with bytes (smallints) is times more efficient than operating with characters (objects), because first thing it does: character1 := aStream basicNext. " a #basicNext, obviously, reads a byte from somewhere and then converts it to instance of Character. 'Bonus' overhead here. " character1 isNil ifTrue: [^ nil]. value1 := character1 asciiValue. " and... what a surprise, we converting a character back to integer value.. What a waste! " value1 <= 127 ifTrue: [ I really hope, that eventually we could have a good implementation, where horse runs ahead of cart, not cart ahead of horse :) Meanwhile i think i have no choice but make yet-another implementation of utf8 reader in my own package, instead of using existing one. -- Best regards, Igor Stasenko AKA sig.

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[Pharo-project] [ANN 1.1] pre-built 1.1#11239
by Marcus Denker Feb. 28, 2010

Feb. 28, 2010

http://gforge.inria.fr/frs/download.php/26559/PharoCore-1.1-11239-UNSTABLE.… -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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[Pharo-project] Scamper revival
by laurent laffont Feb. 28, 2010

Feb. 28, 2010

Hi, It's not stable, but it loads google :) Gofer new squeaksource: 'LaurentLSandbox'; package:'HTML'; package:'Scamper'; load. Then: Scamper openOnUrl: 'http://www.google.com'. I suppose there's a technique to replace all _ by := Laurent Laffont

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[Pharo-project] Infinite Loop and Ctrl+.
by Lukas Renggli Feb. 28, 2010

Feb. 28, 2010

Is this just me that suddenly cannot break out of an infinite loop with Ctrl+. in Pharo 1.0 anymore? Lukas -- Lukas Renggli http://www.lukas-renggli.ch

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[Pharo-project] Smalltalk and Bioinformatics
by HernÃ¡n Morales Durand Feb. 28, 2010

Feb. 28, 2010

Hi all, I'm preparing a presentation and just wondering if anyone out there is doing bioinformatics with Smalltalk? Cheers, HernÃ¡n

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[Pharo-project] Simple (but effective) Optimization of PackageOrganizer
by Alexandre Bergel Feb. 28, 2010

Feb. 28, 2010

issue #2085 Replace the method PackageOrganizer>>packageOfClass: aClass ifNone: errorBlock by -=-=-=-=-= packageOfClass: aClass ifNone: errorBlock | classCategory | classCategory := aClass category. packages at: classCategory ifPresent: [:v | ^ v]. (classCategory includes: $-) ifTrue: [ packages at: (classCategory copyUpTo: $-) ifPresent: [:v | ^ v] ]. ^ self packages detect: [:ea | ea includesClass: aClass] ifNone: errorBlock -=-=-=-=-= Before this enhancement: [100 timesRepeat: [Object package]] timeToRun => 141 After the fix: => 2 Easy thing to do. Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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