- Pharo-dev - lists.pharo.org

[Pharo-project] About String empty and others
by StÃ©phane Ducasse Feb. 16, 2010

Feb. 16, 2010

Hi guys chris mueller proposed in squeak to have Exception>>messageText "Return an exception's message text." + ^ messageText ifNil: [ String empty ]! - - ^messageText! - Added Array class>>#empty and String class>>#empty to provide applications with canonicalized instances of these oft-used objects; since they are embedded as literals in the CompiledMethod. =============== Diff against Collections-ar.304 =============== Item was added: + ----- Method: Array class>>empty (in category 'instance creation') ----- + empty + "A canonicalized empty Array instance." + ^ #()! Item was added: + ----- Method: String class>>empty (in category 'instance creation') ----- + empty + "A canonicalized empty String instance." + ^ ''! Item was removed: - ----- Method: String>>asDefaultDecodedString (in category 'converting') ----- - asDefaultDecodedString - - ^ self http://code.google.com/p/pharo/issues/detail?id=1961

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[Pharo-project] ProfStef
by Torsten Bergmann Feb. 16, 2010

Feb. 16, 2010

Hi, I like the "browser" version of ProfStef more than the simple "workspace" based version. Especially since it allows us to provide more tutorials in the dev image just by loading. The tutorial browser could be one access point (accessible from world menu) and is extensible by loading a package with an own tutorial (like Metacello, ...) Unfortunately "ConfigurationOfProfStef" currently only uses the simple workspace version. What's the plan here? A vision for the future: - a generalized help system maybe similar to what we know from Eclipse [1], KDE [2], or Windows [3] - nested tutorials with deeper structure than (currently) one - the ability to use "help" in a tool which opens a specific chapter and show people how to use Monticello, TestRunner, ... - tutorials/help descriptions managed like code (no pointers to outdated wiki pages from Squeak) - an active help system with live code samples and maybe based on a cleaned up Bookmorph? ;) We are already halfway there, arent we? Thx T. [1] http://www.ibm.com/developerworks/cn/linux/opensource/os-echelp/eclipse-hel… [2] http://www.lrz-muenchen.de/services/compute/linux-cluster/intro/khelpcenter… [3] http://www.knopf.com/resources/help/screenshots/winhelp2k.gif -- GRATIS fÃ¼r alle GMX-Mitglieder: Die maxdome Movie-FLAT! Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01

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[Pharo-project] Using software engineering practices and tools
by StÃ©phane Ducasse Feb. 16, 2010

Feb. 16, 2010

Hi guys I had this draft in my drafts for some weeks now and I would like to share that with you. I'm really convinced that we could do a better job to build better tools and process to bring our software to the next level. I would like to have share with you some thoughts and analysis and also request for ideas and code of course :) - Bug tracking we are doing that but can we dream - would be nice to have the stack/image and that we could get back in the bug - scripting code.google.com would be nice too - to publish code - to manipulate script bug entries (any taker of that) - Integration server: we are getting there and I thank all the hudson experimentations. - we should get more of that. - Package Management: Metacello - I would like to have Pharo1.0 certified metacello configs. the ideas is that people can publish in a repositories the configs that they know are working for 1.0, then in another for 1.1.... -> once we have configurations + integration server we should burn servers running and testing -> what/how do we manage results - I would like to manage pharo (core + maintained packages with metacello) as well as pharo-dev - Profiling We got MessageTally (BTW in Squeak 3.xx all the code was in... SystemDictionary) cleaned Now it would be good to have better way to profile applications something like .... :) http://www.bootchart.org/images/bootchart.png - Documentation I hope to get some students to produce a way to script UMLish class diagrams that could be displayed at the level of a package. Package level doc Package class comments overview browser. I think that this is really important to get nice comments, nice instance variables, nice temporary variables. Now we should find a way to make sure that comments are well in sight. Any idea / code? - SmallLint Better UI and process using SmallLint Would be nice to have a sanity package checking process. Will probably come one of these days - Better Unit Test support We should look at Adrian fixes and enhancements Better reporting of tests - Better merging tools Seeing the impact of a delta between two versions on the image for example on that topic From VW mailing-list "1. Please make the engine highly configurable and disjoint from the UI. 2. Please make the UI itself pluggable, extensible, augmentable, etc. 3. To support automated merges, please allow rules for handling unresolved conflicts." I'm sure that there is more. We should get to the next level ;)

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[Pharo-project] loading rio problem
by StÃ©phane Ducasse Feb. 16, 2010

Feb. 16, 2010

Hi guys do you have the same problem than me loading Rio? Gofer new squeaksource: 'Rio'; package: 'File-Kernel'; package: 'File-Base'; load. Any idea where it is coming? Missing FFI? Stef

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[Pharo-project] web services, pharo
by laurent laffont Feb. 16, 2010

Feb. 16, 2010

Hi, I would like to record a screencast with the following scenario: - search for pictures using Flickr web services, http://www.flickr.com/services/api/, XML-RPC response - parse the XML to get pictures URL - download pictures - display them in a morphic GUI Which packages should I use to use Web services, parse XML, download pictures ? Is there existing apps / code which do this sort of things ? Thanks ! Laurent Laffont

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[Pharo-project] DateAndTime and TimeStamp precision
by Miguel Enrique CobÃ¡ Martinez Feb. 16, 2010

Feb. 16, 2010

I am noticing that both DateAndTime now TimeStamp now have a precision of seconds, that is, the nanos is always 0. I am doing a bulk data creation and inserting them in a list with a timestamp for each insertion but this isn't working because several entries have the very same DateAndTime or Timestamp. For example: {DateAndTime. TimeStamp } collect: [ :class | | list | list := OrderedCollection new. 1 to: 1000 do: [ :each | value := class now. list add: value ]. list last - list first ] gives an Array(0:00:00:00 0:00:00:00) How can achieve smaller than a second timestamping in Pharo? -- Miguel CobÃ¡ http://miguel.leugim.com.mx

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[Pharo-project] Monticello browser doesn't take into account a new package
by Cyrille Delaunay Feb. 16, 2010

Feb. 16, 2010

Hi, I have try that with the last dev image on the pharo website: When I create a new package (right-click => add category on the default browser), this new package will not appear in the monticello browser. Therefore, you will not be able to save it in any squeaksource repository (?). The package will appear only after specific manipulations (for example, move a class from this new package to another one).

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Feb. 16, 2010

Hi guys another of this email pending in my mailbox to get out. I'm not sure that our integration process is the good one. We built it by trial and error and it may give the impression that we are not open which is not the case. We really want to have discussion of items in the list and that integration is just the boring job of making it happening. Now we are probably trapped in the fact that ScriptLoader works. But we are ready to change for something better. Ideally we would like to use Metacello to manage Pharo. If you want to learn how we do it you can read the class comment of ScriptLoader. We have no problem to let people integrate fix or change having access. What I learned is that this is boring to do and I always like to have somebody else looking at my code. So for example we do the same with marcus, I have a look at his fixes. So let us know. Stef

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[Pharo-project] [update 1.1] #11213
by stephane ducasse Feb. 16, 2010

Feb. 16, 2010

11213 ----- - Issue 1948: SmalltalkImage current reportCPUandRAM - Issue 1979: spyOn: fix - Issue 1969: Sender Show the Trait and all of this uses. - Issue 1980: defaultResumeValue for Exception (from Squeak) Introduce Exception>>defaultReturnValue and Exception>>defaultResumeValue to provide default values for argument-less #resume or #return. The motivation is that catch-all handler may not be aware of specific return / resume values required by some exceptions. The protocol allows these exceptions to provide a reasonable default value for those situations.

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Feb. 16, 2010

Hi all INRIA is offering some PhD positions and we are looking for candidates (note that a commitee will decide not us). Here are the topics for our team Reflection and Security in Dynamic Languages http://www.inria.fr/travailler/mrted/en/doc/details.html?id=PNGFK026203F3VB… Software re-modularization http://www.inria.fr/travailler/mrted/en/doc/details.html?id=PNGFK026203F3VB… Deadline for applying: Mai 4 for the postdoc you should have defended your PhD by end of October (I should check) Reflection and Scoping in Dynamic Languages http://www.inria.fr/travailler/mrted/en/postdoc/details.html?id=PNGFK026203… Designing a pure trait-based language http://www.inria.fr/travailler/mrted/en/postdoc/details.html?id=PNGFK026203… Deadline for applying: Mars 14 please distribute :)

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