April 2011 - Pharo-dev - lists.pharo.org

[Pharo-project] Workspace code to Web example (was What gives? OpenQWAK???? )
by Chris Cunnington April 28, 2011

April 28, 2011

Of the many cool things Eliot displayed in Lille from his workshop (full image simulator; image reading from stdin) was how he makes code examples for his blog. It's #saveBlogHtmlInFile/#saveHtmlInFile and is added to the Workspace menu. Not as big as the other things, but useful. http://www.smalltalktelevision.com/Workspace.html OpenQwaq-1.0.01.image Workspace>>#saveBlogHtmlInFile Groovy. Chris

1 0

[Pharo-project] how to deal with string position in relation to cr/crlf
by Tudor Girba April 28, 2011

April 28, 2011

Hi, I have a small problem related to file line endings and storing the token information of PetitParser. Sometimes, we parse the sources on Windows and then manipulate the model on Linux or Mac. In this context, if I store the token positions in a string, I encounter problems because CR and LF are considered characters, but the line endings can vary. ('abc', Character cr asString , 'd') findString: 'd'. ==> 5 ('abc', Character cr asString , Character lf asString, 'd') findString: 'd'. ==> 6 How would you approach this problem? Cheers, Doru -- www.tudorgirba.com "Every thing has its own flow."

4 5

[Pharo-project] [COTDC] 56 - HostFont
by laurent laffont April 28, 2011

April 28, 2011

Today: HostFont Comment Of The Day Contest - One Day One Comment Rules: #1: Each day a not commented class is elected. Each day the best comment will be integrated with name of the author(s). #2: If you cannot comment it, deprecate it. Results: http://code.google.com/p/pharo/wiki/CommentOfTheDayContest Laurent Laurent Laffont - @lolgzs <http://twitter.com/#!/lolgzs> Pharo Smalltalk Screencasts: http://www.pharocasts.com/ Blog: http://magaloma.blogspot.com/ Developer group: http://cara74.seasidehosting.st

1 0

[Pharo-project] [COTDC] 55 - IdentityGlyphMap
by laurent laffont April 28, 2011

April 28, 2011

Today: IdentityGlyphMap Comment Of The Day Contest - One Day One Comment Rules: #1: Each day a not commented class is elected. Each day the best comment will be integrated with name of the author(s). #2: If you cannot comment it, deprecate it. Results: http://code.google.com/p/pharo/wiki/CommentOfTheDayContest Laurent

1 1

[Pharo-project] Smalltalk position in Germany
by stephane ducasse April 28, 2011

April 28, 2011

Hi guys HRWorks is looking for a good smalltalker (with potentially some german knowledge). If you are interested contact Thomas Holzer <thomas.holzer(a)hrworks.de> Stef

1 0

[Pharo-project] Preallocation behavior
by jannik.laval April 28, 2011

April 28, 2011

Hi all, I am playing with MessageTally, and I have a strange result with prealocation. Here is my example. I am working on a PharoCore1.3, with a VM4.2.5 First of all, I spy this source code: ==== MessageTally spyOn: [ 500 timesRepeat: [ | str | str := ''. 9000 timesRepeat: [ str := str, 'A' ]]]. ==== The result appears after 24 961 ms. An optimization is to use a Stream. Here is my source code: === MessageTally spyOn: [ 500 timesRepeat: [ | str | str := WriteStream on: (String new). 9000 timesRepeat: [ str nextPut: $A ]]]. === The result appears after 812 ms, which is a large improvement. Now, we could optimize again using the preallocation. Here is my source code: ==== MessageTally spyOn: [ 500 timesRepeat: [ | str | str := WriteStream on: (String new: 10000). 9000 timesRepeat: [ str nextPutAll: 'A' ]]]. ==== And the result is strange: it makes 2 times slower to display the result. The result appears after 1656 ms. Here is the spy result: === - 1656 tallies, 1656 msec. **Tree** -------------------------------- Process: (40s) 464519168: nil -------------------------------- **Leaves** 22.9% {380ms} UndefinedObject>>DoIt 22.5% {373ms} SmallInteger(Integer)>>timesRepeat: 22.2% {368ms} WriteStream>>nextPutAll: === There is the call of UndefinedObject>>DoIt which is added and takes time. Does anyone know what is done during the preallocation ? Why is it slower than non-preallocation ? Thanks for your answers. Jannik

7 17

Re: [Pharo-project] [ANN] PharoDev-1.3-13173
by Marcus Denker April 28, 2011

April 28, 2011

On Apr 27, 2011, at 6:27 PM, Philippe Marschall wrote: > > - OBDefinition >> #doItReceiver references FakeClassPool > This can not be. I added FakeClassPool back to the Deprecated13 package some updates ago. Marcus -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

2 1

[Pharo-project] GitFs / MCGit
by Camillo Bruni April 28, 2011

April 28, 2011

Hi Max, I took another effort to work on the git bindings of MC. However I ran into troubles with FSGitFilesystem on commiting. 1. I fail when saving the repos in GitCommit >> parents when it starts to lazily load the object which does not exist yet... 2. GitRespository >> packedObjectWithSignature: aGitObjectSignature does not throw an exception but simply returns nil? does this make sense? maybe you have a clue how to solve this faster than I do :-) camillo

6 11

[Pharo-project] Why we have Behavior >> flushCache?
by Mariano Martinez Peck April 28, 2011

April 28, 2011

Hi. As far as I can see, Behavior >> flushCache "Tell the interpreter to remove the contents of its method lookup cache, if it has one. Essential. See Object documentation whatIsAPrimitive." <primitive: 89> self primitiveFailed And primitive 89 does nothing in particular with the receiver (the class in this case). In both, InterpreterVM and Cog, the WHOLE cache is flushed, there is NOTHING related to the receiver class. Of course, that's at least what it looks for me (please tell me if I am wrong). So...if this is the case, wouldn't make sense to move it elsewhere? like Smalltalk flushCache or Smalltalk vm flushCache (and it is a good moment to reify the VM). So after we can do: Smalltalk vm version. Smalltlak vm flushCache, Smalltalk vm parameterAt: , etc.... If you don't like doing "Smalltalk vm" then we can create a VM class with all class methods, or a singleton and use #current or a singleton and put it in Smalltalk globals...etc We will need to fix a couple of senders, thus. What do you think? For me is really confusing, and you don't understand it until you see the primitive implementation. Cheers -- Mariano http://marianopeck.wordpress.com

7 11

[Pharo-project] [update 1.3] #13174
by Marcus Denker April 28, 2011

April 28, 2011

13174 ----- Issue 4099: Find and replace doesnt accept with Enter key Issue 4102: Show commit message only after successfully commiting a new version Issue 4108: remove authoringPrototype methods Issue 4105: Failing test: Tests.SystemChangeNotification.ChangeHooksTest.testMethodRemovedEvent2 Issue 4082: nil@nil Issue 4069: Object>>withArgs:executeMethod: should be removed we deprecate the specialized version (Prim 189), but keep #withArgs:executeMethod: for now until there is a primitive for CompiledMethod... (this is used for executing DoIts). For the next step, we will add another Issue later. -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

2 1