May 2012 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] Pharo is exploding
by Marcus Denker May 15, 2012

May 15, 2012

On May 15, 2012, at 9:35 AM, StÃ©phane Ducasse wrote: > We can try to use stack overflow to see. > Anyone can do that already... the idea was to install a *dedicated* one, like Rascal: http://ask.rascal-mpl.org/questions/ This is kind of an interactive and automatic FAQ... -- Marcus Denker -- http://marcusdenker.de

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Re: [Pharo-project] Pharo is exploding
by Max Leske May 15, 2012

May 15, 2012

On 15.05.2012, at 08:50, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > On May 15, 2012, at 7:47 AM, Max Leske wrote: > >> A random thought: how about a stackexchange site for smalltalk? Most of the things disussed on the list could probably go there and the list would once again be a quiet place for core stuff only. >> > > Yes, we were discussing that on Friday.... the developres of Rascal are using it:http://www.rascal-mpl.org/ > >> We (or I) would have to propose a new site and we would need people from Pharo AND Squeak (and hopefully other dialects too) to come aboard to promote the site. The entire process of creation is explained here:http://area51.stackexchange.com/faq >> > Agreed. I was only thinking that it might be hard to get enough people for launching the site if we restrict it to pharo. Maybe we could start a poll to find out how many people would join. Or we simply propose the site and invite the list to participate? > But would multi dialect not be very confusing? > > Marcus > > -- > Marcus Denker -- http://marcusdenker.de >

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Re: [Pharo-project] Pharo is exploding
by Marcus Denker May 15, 2012

May 15, 2012

On May 15, 2012, at 4:44 AM, Igor Stasenko wrote: > it was a time, when were able to track all activities around squeak, > pharo and vm.. > > today the amount of updates, news and activities is just overwhelming.. > > a rusty locomotive, which once staying in backyard, repaired by Stef > and Marcus and now goes faster and faster :) :-) I think that we will now slowly see the feeback effects that I always try to explain to people: that when you improve something a little, you can use that small improvement to improve the system again, leading to exponential growth. The easiest example to understand this is tools: better tools make us productive, if we are more productive we can just do more. Like making the tools even better. But this is not just tools, it's everything. I think we will really realize what this means soon: that you can do things that are *impossible* else and that will feel truly like magic. (And I think we will see that the idea that you can just do research on top of an unchanged Squeak is completely wrong. With what we will have soon, we can do things on a qualitatively so different level that people will not even be able to compare... and nobody will even believe that we had to fight so hard for the obvious.) Marcus -- Marcus Denker -- http://marcusdenker.de

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[Pharo-project] Notify progress with Announcements instead of Exceptions
by Sean P. DeNigris May 15, 2012

May 15, 2012

Issue 5874: [ENH]: Notify progress with Announcements instead of Exceptions http://code.google.com/p/pharo/issues/detail?id=5874 This seems like a natural use case for Announcements and Exceptions seems like more of a hack. I found the Exception behavior very hard to customize. I caught the ProgressInitiationException, but the ProgressNotification exceptions seemed to be caught elsewhere and I could not get to them. What do you guys think? Sean -- View this message in context: http://forum.world.st/Notify-progress-with-Announcements-instead-of-Excepti… Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

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Re: [Pharo-project] [squeak-dev] Fun with spock (NativeBoost FFI)
by Lawson English May 15, 2012

May 15, 2012

[pharo-project list added back in] On 5/13/12 1:34 PM, Nicolas Cellier wrote: > [100000 primeSwingFactorial] timeToRun 3411 [100000 factorial] > timeToRun 61219 So gmp is still 40x faster than a reasonably optimized > Smalltalk factorial... I think that's fair, because gmp is highly > optimized. Since cost is dominated by LargeInteger arithmetic, and > since Smalltalk LargeInteger arithmetic in primitives still operates > on bytes, I'm not so surprised of the gap... I'd like to see a 64bit > image operating on 32 bits positive integers digits, that would > already be a progress... Nicolas For me, the most interesting thing would be to figure out how to integrate such external libraries more tightly into the language syntax. Right now, x := 3.14159... always creates a Float, which is stored as a double. x class ===> Float. What if I wanted to generate a gmplib floating point number (or rational or large integer) automatically when the gmplib binding is available? Could I implement something that makes x a GMPfpWrapper if extra digits are supplied? e.g.: x := 3.14159265358979323846264338327950288419716939937510. x class ===> GMPfpWrapper. NativeBoost allows one to cascade calls to external libraries if you wrap them in assembly language in the method. High speed, aribrary-precision floating point complex number arithmetic, can be accomplished that way (no examples yet sorry, still learning) as well as more complicated stuff. I'm hoping to make a proof-of-concept mandlebrot set Morph that can zoom in arbitrarily. 32 bit floats limit the resolution terribly. So... What can be done to better integrate such libraries? I browsed the Parser and other classes but didn't understand what I was seeing well enough to figure out how to begin. L -- Squeak from the very start (introduction to Squeak and Pharo Smalltalk for the (almost) complete and compleate beginner). https://www.youtube.com/playlist?list=PL6601A198DF14788D&feature=view_all

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[Pharo-project] How to create/register RPackage/MCPackage packages
by Mariano Martinez Peck May 14, 2012

May 14, 2012

Hi guys. So far, when we export/import packages with Fuel, we have our own FLPackage that we serialize/materialize. We get that info from a PackageInfo. Now, my question is, say I have materialized a package, how can I do (by code) to create and register in the system a normal package from our FuelPackage. Any idea? thanks -- Mariano http://marianopeck.wordpress.com

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[Pharo-project] hints for bulk notification
by Mariano Martinez Peck May 14, 2012

May 14, 2012

Hi guys. When importing a package with fuel, I am sending SystemChangeNotifier uniqueInstance classAdded: aBehavior inCategory: category asSymbol. for EACH class ... that is really slow. so...as part of GSoC we will try to improve this. I would like to do bulk events, that is, one even that receives a list of items rather than one. I don't know anything about SystemChangeNotifier nor SystemAnnouncer. So, we would relaly appreciate some help/hints of how can we implement this. Maybe an example would help. Thanks! -- Mariano http://marianopeck.wordpress.com

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[Pharo-project] bug on dictionary?
by Esteban Lorenzano May 14, 2012

May 14, 2012

Hi, I have this issue: Dictionary with: #one->'ONE' with: #two->'TWO' "This gives me a correct Dictionary with keys #one, #two and values 'ONE', 'TWO'" Dictionary withAll: {#one->1 with: #two->2} "This gives me a Dictionary with keys 1,1 and values #one->'ONE', #two->'TWO' So... I think one of both is incorrect... or at least, the API sucks because is too confusing. cheers, Esteban

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[Pharo-project] Singleton access selector
by Sean P. DeNigris May 14, 2012

May 14, 2012

I've noticed we use a buffet of accessors for singletons, like #default, #instance, #current... it'd be nice to just pick one. I like #instance, but could live with any as long as I never have to guess which one from a list again :) Sean -- View this message in context: http://forum.world.st/Singleton-access-selector-tp4630062.html Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

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[Pharo-project] FileBrowser/FileList rant
by Nicolas Cellier May 14, 2012

May 14, 2012

Hi, it seems that FileBrowser/FileList is never used... And I absolutely don't understand some design choices. 1) Having a single reference inst var for both selectedDirectory and selectedFile : this is a bug factory, see http://code.google.com/p/pharo/issues/detail?id=5881 and http://code.google.com/p/pharo/issues/detail?id=5884 for example of bugs (I could open 1 bug entry per menu item I guess) 2) auto-selecting the file item under pop-up menu click This is a windows thing and anti-Smalltalk-UI-custom This is not at all uniform in the rest of Pharo UI (not even on the directory list) The implementation is buggish (see ttp://code.google.com/p/pharo/issues/detail?id=5882 which is duplicate of ttp://code.google.com/p/pharo/issues/detail?id=5625) There was (and still is) a specific menu when no file is selected... fileListMenu: aMenu reference ifNil: [^ self noFileSelectedMenu: aMenu] ifNotNil: [^ self fileSelectedMenu: aMenu]. I don't want to argue whether or not FileList did deserve a clean-up, I'm quite sure it did. And I also agree that we can temporarily break things in development images. But when the clean-up is so far from anything functional, I just wonder who do you want to eat the dog food? I'm a bit sick of it ;) Nicolas

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