- Pharo-dev - lists.pharo.org

[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

5 10

[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

5 7

[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

1 0

[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 ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

3 5

[Pharo-project] CeBIT anyone?
by Richard Durr Feb. 28, 2010

Feb. 28, 2010

So will anybody be at the CeBIT? RD

1 0

[Pharo-project] [update 1.1] #11239
by stephane ducasse Feb. 28, 2010

Feb. 28, 2010

11239 ----- - Issue 2026: RecentMessageSet fixes. Tx Pavel :) - Issue 2066: Conversions from/to hex representations in ByteArray (from squeak). Now we can read and print ByteArray in hex with upper and lower case. Stef well a final one (yes noury we arrive now).

1 0

[Pharo-project] How to manage oos dev
by StÃ©phane Ducasse Feb. 28, 2010

Feb. 28, 2010

http://video.google.com/videoplay?docid=-4216011961522818645# The subtitle is misleading How Open Source Projects Survive Poisonous People (And You Can Too) I think that we can learn from them :) The video is much more that about Poisonous people. A lot of interested advices - having vision making sure that people understand it - what are the values of the project - communications (use mails to communicate often) - commit often little code instead of a large chunk - bus factors (encourage people to share they knowledge so cool) - people marking their packages and not letting other sharing. - I like the consensus they promote. - a good one for me :) don't let the emotion drain you :) I can tell you that I'm learning :))))) Stef

1 0

Feb. 28, 2010

11238 ----- - Issue 2089: Case insensitive search for MethodFinder/MessageNames tx marcus - Issue 2097: SecureHashAlgorithm raising an error upon empty input (from squeak) - Issue 2087: Compacting all methodDictionaries (from squeak) - Cycles cutting tx Jannik Stef (I will be off playing games with kids and noury and luc today....) I will show them magic the gathering Yeahhhh So I will not integrate more today

1 0

[Pharo-project] PhD proposal: Security in Dynamic Languages
by Marcus Denker Feb. 28, 2010

Feb. 28, 2010

(I am reposting this with updated links) The RMoD team at INRIA Lille / France is offering a PhD position. "Reflection and Security in Dynamic Languages". Applications must be submitted online, the deadline is *Mai 4*. More information and online application: http://bit.ly/cbAlE9 More on doing a PhD at INRIA: http://www.inria.fr/travailler/opportunites/doc.en.html ====================================================================== Reflection and Security in Dynamic Languages ============================================ Position type: PhD Student Functional area: Lille (Villeneuve d'Asq) Project: RMOD Environnement ============= To support the creation and evolution of complex systems, dynamic languages provide support for reflection. A reflective system contains a model of itself to enable runtime change: if we change the model, the system changes and vice versa. Reflection allows the programmer to do any kind of change at runtime, even those that render the system useless or breach any kind of security guarantees. Reflection is an established research theme and has seen a lot of work over the last decades. The question of how to control reflection and related that of secure reflective systems in general has not seen much research activity. The PhD Student therefore will work on the question on how to control reflection and work towards enabling systems that are both reflective and secure. Missions ======== The goal of this PhD is to propose a new secure reflective language kernel for dynamic languages. The following points should be explored: - Study existing models of security. - Study existing reflective systems and especially prior work on security and reflection. - Propose a new, secure model of reflection. - Implemented the model in a dynamic, object-oriented language. CompÃ©tences et Profil ===================== - Reflective programming - Smalltalk / C - English Informations complÃ©mentaires ============================ Chercheur(s) Ã contacter pour plus dâinformation/advisors : StÃ©phane Ducasse : stephane.ducasse(a)inria.fr Marcus Denker : marcus.denker(a)inria.fr References ========== [1] Marcus Denker, Tudor GÃ®rba, Adrian Lienhard, Oscar Nierstrasz, Lukas Renggli and Pascal Zumkehr, âEncapsulating and Exploiting Change with Changeboxes,â Proceedings of the 2007 International Conference on Dynamic Languages (ICDL 2007), ACM Digital Library, 2007, pp. 25--49. [2] Oscar Nierstrasz, Alexandre Bergel, Marcus Denker, StÃ©phane Ducasse, Markus Gaelli and Roel Wuyts, âOn the Revival of Dynamic Languages,â Proceedings of Software Composition 2005, Thomas Gschwind and Uwe AÃmann (Eds.), vol. 3628, LNCS 3628, 2005, pp. 1-13 [3] Mark S. Miller and Jonathan S. Shapiro. Paradigm Regained: Abstraction Mechanisms for Access Control. In Proceedings of the Eigth Asian Computing Science Conference, p. 224-242, 2003. [4] Mark Samuel Miller. Robust Composition: Towards a Unified Approach to Access Control and Concurrency Control. Ph.D. thesis, Johns Hopkins University, Baltimore, Maryland, USA, May 2006. -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

1 0

[Pharo-project] PhD proposal: Software re-modularization
by Marcus Denker Feb. 28, 2010

Feb. 28, 2010

(I am reposting this with updated links) The RMoD team at INRIA Lille / France is offering a PhD position. "Software re-modularization". Applications must be submitted online, the deadline is *Mai 4*. More information and online application: http://bit.ly/ajc1N8 More on doing a PhD at INRIA: http://www.inria.fr/travailler/opportunites/doc.en.html ====================================================================== Software re-modularization ========================== Position type: PhD Student Functional area: Lille (Villeneuve d'Asq) Project: RMOD Environnement ============= For organizations, each software system represents a significant investment in time, resources, and knowledge. It is fundamental to keep these systems effective to protect this investment. On the other side, constant evolution of the systems produces an âarchitectural driftâ where the initial architecture no longer fits the necessities of the new requirements. To fight this trend, one must re-architecture the system, which could sometimes be compared to re-engineer a hand made canoe to a full cruise ship while at sea. Research already made good progress, proposing tools that detect the necessity of architecture re-engineering and point at the most urgent needs. These tools work by analyzing class dependencies (e.g., when a class makes a call to a method in another class) and relying on the high cohesion/low coupling principle: A good architecture should ensure that packages have high cohesion (lots of dependencies between their classes) and low coupling with other (few dependencies between classes in one package and classes outside the package). But re-modularization is still a difficult task, for example a lot of solutions may be possible in any specific case, not one with clear advantages over the others. The next research step is therefore to propose tools helping software engineers to actually perform and assess these modularizations. Several paths will be explored, independently or jointly: - Exploration of the space of all possible re-modularization solutions. Visual tools and/or tools based on metrics could help software engineers foresee and understand the costs and consequences of several different re-modularization options so as to help them choose the best one. - Define a quality model to assess different re-modularisations. There is a need to compare multiple solutions of remodularisation actions. - Identification of a catalog of high-level re-modularization operations. Just like modern IDE offer high-level refactoring operations (rename an attribute, move a method), one could identify what high-level operations (for example, cut cycle) would be necessary and sufficient to perform most re-modularization. - Combining these two approaches, one can even imagine a tool that would explore alone the possible options and choose the best(s) one(s) according to some pre-establish quality model. This would somehow be similar to a program that plays chess and explore the space of possible play to choose the most promising one toward a win. Missions ======== The goals of the project are multiple and could be explored independently: - exploring existing high level re-factoring operations; - perform re-modularization so as to identify possibly recurrent high-level operations; - implementing tools to apply these high-level re-modularization operations; - definition of metrics and tools to visualize concurrently different possible re-modularization solutions; - definition of quality and cost models for re-modularization; exploring heuristic to choose the best re-modularization operations to apply in specific cases. CompÃ©tences et Profil ===================== - object-oriented programming with knowledge of Smalltalk - experience in software maintenance and re-factoring - english - good communication Informations complÃ©mentaires ============================ Chercheur(s) Ã contacter pour plus dâinformation/advisors : StÃ©phane Ducasse: stephane.ducasse(a)inria.fr Nicolas Anquetil: nicolas.anquetil(a)inria.fr References =========== [1] S. Ducasse, D. Pollet, M. Suen, H. Abdeen, I. Alloui, âPackage Surface Blueprints: Visually Supporting the Understanding of Package Relationshipsâ, IEEE International Conference on Software Maintenance, 2007. ICSM 2007, IEEE Comp. Soc. Press, pp. 94-103 [2] S. Ducasse, D. Pollet, âSoftware Architecture Reconstruction: a Process-Oriented Taxonomyâ, IEEE Transactions on Software Engineering, IEEE Comp. Soc. Press, 35(4), pp. 573-591, 2009 [3] O. Seng, M. Bauer, M. Biehl, G. Pache, âSearch-based Improvement of Subsystem Decompositionsâ, Proceedings of the 2005 conference on Genetic and evolutionary computation, ACM, pp. 1045 - 1051, 2005 [4] O. Seng, J. Stammel, D. Burkhart, âSearch-Based Determination of Refactorings for Improving the Class Structure of Object-Oriented Systemsâ, Proceedings of the 8th annual conference on Genetic and evolutionary computation, ACM, pp. 1909 â 1916, 2006. [5] J.B. Tran, M.W. Godfrey, E.H.S. Lee, R.C. Holt, âArchitectural Repair of Open Source Softwareâ, 8th International Workshop on Program Comprehension (IWPC'00), IEEE Comp. Soc. Press, p. 48, 2000 -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

1 0