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Call for presentation @ ESUG 2024
by stephane ducasse Feb. 13, 2024

Feb. 13, 2024

Dear friends Please distribute the following call ESUG 2024 Call for Presentations from 8 to 11 July 2024 Lille France https://esug.github.io https://esug.github.io/2024-Conference/conf2024.html You can support the ESUG conference in many different ways: - Sponsor the conference. New sponsoring packages are described at http://www.esug.org/supportesug/becomeasponsor/ - Submit a talk, software to the award competition, or a paper to IWST http://https://esug.github.io/2024-Conference/IWST2024.html - Attend the conference. We'd like to beat the previous record of attendance (180 people at Koln 2019)! - Students can get free registration and hosting if they enroll in the the Student Volunteers program. See below. ## Developers Forum: International Smalltalk Developers Conference We are looking for YOUR experience on using Smalltalk. You will have 30 min for presentations and 45 min for hands-on tutorials. The list of topics for the normal talks and tutorials includes, but is not limited to the following: - XP practices, Development tools, Experience reports - Model-driven development, Web development, Team management - Meta-Modeling, Security, New libraries & frameworks - Educational material, Embedded systems and robotics - SOA and Web services, Interaction with other programming languages - Teaching Pearls and Show us Your Business We added two types of sessions in addition to the regular talks and ''Show us your project'' sessions. - Show your business in a 10-minute session (Get prepared!!) - Teaching pearls: we want some sessions on how to teach some design aspects. We want your tip and tricks to teach Smalltalk or OOP. We expect to have several 10 to 15-minute sessions aggregated. ### How to submit? Make a Pull Request here https://github.com/ESUG/esug.github.io/tree/source/2024-Conference/talks [Or but only if you are not connected to the worldâ¦ send an email to stephane.ducasse(a)inria.fr] Title: [ESUG 2024] Please follow the template below the email will be automatically processed! Name: Email: Abstract: Bio: ## Call for Student Volunteers Student volunteers help keep the conference running smoothly; in return, they have free accommodations, while still having most of the time to enjoy the conference. Pay attention: the places are limited so do not wait till the last minute to apply. Conference details: Send an email to Steven Costiou <steven.costiou at inria.fr> and Oleksandr Zaitsev <olk.zaytsev at gmail.com> with: title: [ESUG 2024 Student] name, gender, university/school, country, email address short description of you and why you are interested in participating For which period is accommodation covered? Accommodation is covered from Sunday from 8 to 11 July 2024 (including nights from Sunday to Monday and from Wednesday to Thursday ). Students will be hosted in student rooms. ESUG additionally covers the lunches during the week and one dinner. Duties include handling registration as people arrive at the conference, filling coffee machines, collecting presentation slides for ESUG right after the presentation is given, being present at an information desk to answer questions, and generally being helpful. Student volunteering makes the conference better, takes a fairly small amount of time, and doesn't significantly interfere with enjoying and learning from the conference. Please note, that this role requires discipline and constant attention to all attendees. Information about hotel Student Volunteer rooms are booked at (to be announced). If you are a student volunteer, do not book yourself, we have arranged the booking already!

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A little post Why class number is an idiotic quality metric?
by stephane ducasse Feb. 11, 2024

Feb. 11, 2024

https://wordpress.com/post/pharoweekly.wordpress.com/4226 StÃ©phane Ducasse http://stephane.ducasse.free.fr 06 30 93 66 73 "If you knew today was your last day on earth, what would you do differently? ....ESPECIALLY if, by doing something different, today might not be your last day on earth.â Calvin & Hobbes

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This week (06/2024) on the Pharo Issue Tracker
by Marcus Denker Feb. 9, 2024

Feb. 9, 2024

# Pharo11 - Tolerate halt when handling a OSWindowEvent #16095 https://github.com/pharo-project/pharo/pull/16095 # Networking - Improved error handling around sending data in Socket/SocketStream (fixes #15614) #15984 https://github.com/pharo-project/pharo/pull/15984 # Tools - New settings browser #681 https://github.com/pharo-spec/NewTools/pull/681 - File Dialog: Add dynamic preview #682 https://github.com/pharo-spec/NewTools/pull/682 - Add DoIt in background and a toolbar button to cancel the current exeâ¦ #672 https://github.com/pharo-spec/NewTools/pull/672 # Graphics - Add #scale and #formSet:at:sourceRect:rule: to Canvas hierarchies and #blendAlphaScaled for Form #16090 https://github.com/pharo-project/pharo/pull/16090 - Make ScalingCanvas avoid converting a Form in a FormSet for lookup in the FormMapping #16089 https://github.com/pharo-project/pharo/pull/16089 - Tolerate halt when handling a OSWindowEvent #16088 https://github.com/pharo-project/pharo/pull/16088 # Refactoring Eingine - Refactor: extract method transformation build transformations #16125 https://github.com/pharo-project/pharo/pull/16125 - Cleanup: push down instance variable breaking changes #16113 https://github.com/pharo-project/pharo/pull/16113 - Refactor: make pull up class variable same as pull up instance variable #16112 https://github.com/pharo-project/pharo/pull/16112 - Refactor: remove method new architecture #16107 https://github.com/pharo-project/pharo/pull/16107 - Refactor: remove preconditions from extract method's buildTransformations #16102 https://github.com/pharo-project/pharo/pull/16102 - Refactor: remove unused swap method refactoring #16101 https://github.com/pharo-project/pharo/pull/16101 - Refactor: preconditions of add method and migrate to new architecture #16098 https://github.com/pharo-project/pharo/pull/16098 - RB: Just renamed two classes #16097 https://github.com/pharo-project/pharo/pull/16097 # Bootstrap - Avoid merged tags without abbrev parameter for vm download in bootstrap script #16124 https://github.com/pharo-project/pharo/pull/16124 - Avoid merged tags for vm download in bootstrap script #16121 https://github.com/pharo-project/pharo/pull/16121 - Update bootstrap process to refer to Pharo12 #16021 https://github.com/pharo-project/pharo/pull/16021 # Cleanup - 15965-CI-Failing-tests-on-the-CI-ReleaseTeststestThatThereAreNoSelectorsRemainingThatAreSentButNotImplemented #16115 https://github.com/pharo-project/pharo/pull/16115 - 16053-RGMethodDefinitionstoreOn-should-not-be-an-extension #16116 https://github.com/pharo-project/pharo/pull/16116 - 16057-Cleanup-use-cascaded-nextPutAll-in-LocaleIDstoreOn #16100 https://github.com/pharo-project/pharo/pull/16100 - Array>>#displayString should be part of Kernel and not an override from NewTools #16069 https://github.com/pharo-project/pharo/pull/16069 - Display methods should be in "displaying" protocol #16058 https://github.com/pharo-project/pharo/pull/16058

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Open PhD position on debugging at Inria Lille
by Steven Costiou Feb. 8, 2024

Feb. 8, 2024

Hello, we have a PhD position opening at Lille, France. See all details here: https://recrutement.inria.fr/public/classic/fr/offres/2024-07154 Steven. _Summary of the research proposal:_ ### Application development inevitably introduces bugs. Often, it's not clear why a code change introduced a bug. To find this cause-and-effect relationship and debug more efficiently, developers can sometimes rely on the existence of a previous version of the code without the bug. Yet, traditional debugging tools are not designed for this kind of work, making it a tedious operation. In this thesis, we propose an approach that enables us to understand and to debug an application in a LIVE SYSTEM, such as Pharo or Python, by comparing two executions with different results: one execution succeeds and the other fails. Based on this hypothesis, we propose in this thesis to answer the following challenges: - How to detect divergence, i.e. different behavior between two executions of a program? - How can we reduce the cost in time, memory and energy consumption of detecting divergence(s) on long executions? - What are the criteria for deciding whether a divergence is normal or unauthorized? - What about detecting multiple divergences in the same program? - What abstractions are needed to compare two executions of a program and detect divergences? To meet these challenges, in addition to a precise state-of-the-art on debugging techniques, the PhD student will study concrete cases of program execution and propose a tool to be integrated into Pharo.

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This week (05/2024) on the Pharo Issue Tracker
by Marcus Denker Feb. 2, 2024

Feb. 2, 2024

# Fixes - Fixes for browsing a package from a repository using Calypso #16009 https://github.com/pharo-project/pharo/pull/16009 - add a missing method ClyOldMessageBrowserAdapter #16083 https://github.com/pharo-project/pharo/pull/16083 - Fix String method causing multiple problems #16081 https://github.com/pharo-project/pharo/pull/16081 - SycBrowseClassCommand fix for Browse to class in method editor #16066 https://github.com/pharo-project/pharo/pull/16066 - Deprecations from SUnit testcases should be raised #16036 https://github.com/pharo-project/pharo/pull/16036 - Fixing object class initialize #16033 https://github.com/pharo-project/pharo/pull/16033 - adding an ifEmpty guard in RubTextSegmentMorph>>#computeStraightVertices to prevent a random CI crash #16016 https://github.com/pharo-project/pharo/pull/16016 # Enhancements - Use newtools for progressbars #16075 https://github.com/pharo-project/pharo/pull/16075 - Expand the dependency analyzer roots by default #16074 https://github.com/pharo-project/pharo/pull/16074 - Rework MorphTreeMorph, MorphTreeNodeMorph and SimpleHierarchicalListMorph to remove sends of #treeExpandedForm and #treeUnexpandedForm #16043 https://github.com/pharo-project/pharo/pull/16043 - Make FTBasicTreeListItem use a FormSet for the expand/collapse toggle #16037 https://github.com/pharo-project/pharo/pull/16037 - Move the call of the Deprecation>>transform to the Deprecation>>defaultAction #16040 https://github.com/pharo-project/pharo/pull/16040 # Refactoring Engine - Cleanup: RBMetaclass>>#realName: #16061 https://github.com/pharo-project/pharo/pull/16061 - Cleanup: small refactoring cleanups #16048 https://github.com/pharo-project/pharo/pull/16048 - Refactor: remaining preconditions #16044 https://github.com/pharo-project/pharo/pull/16044 - Refactor: rename preconditions of pacakge refactoring #16028 https://github.com/pharo-project/pharo/pull/16028 - Refactor: another pass on cleaning and splitting preconditions #16026 https://github.com/pharo-project/pharo/pull/16026 - Refactor: VariableRefactoring doesn't override preconditions #16023 https://github.com/pharo-project/pharo/pull/16023 - Refactor: change method name preconditions #16022 https://github.com/pharo-project/pharo/pull/16022 - Refactor refactoring preconditions #16020 https://github.com/pharo-project/pharo/pull/16020 # Cleanups - Change #notNil into #isNotNil in Fuel test packages #16071 https://github.com/pharo-project/pharo/pull/16071 - Cleanup: Fix lint in MetaLinkAnonymousClassBuilderTest>>#testCompileCâ¦ #16063 https://github.com/pharo-project/pharo/pull/16063 - Replaced aCollection asOrderedCollection copy to OrderedCollection withAll: aCollection #16032 https://github.com/pharo-project/pharo/pull/16032 - Add two tests for the class StringTest #16031 https://github.com/pharo-project/pharo/pull/16031 - Fix #16024 remove dead code #16025 https://github.com/pharo-project/pharo/pull/16025

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About removing class side initialization
by stephane ducasse Feb. 1, 2024

Feb. 1, 2024

Hi community I would like to get use your ideas. Here is the case Context: Class side initialize are not good. We fixed a bug with guille today (should do a PR) this bug was breaking some projects by changing the superclass of classes to Object. Radical! It was produced by the removal of DependentFields in Object and the removal of the class side Object initialize method Needed to initialize DependentFields (RIP). Doing so when a class was doing a super initialize it executes the Behavior>>#initialize (which reinitialize the class and its superclass) and was not reachable before because blocked by Object class>>#initialize. Two Situations. When we do a class super initialize there are two cases Case 1. the super reaches Behavior>>#initialize and your class gets killed. Solution 1. Easy we will define a class side initialize method to protect the execution of Behavior>>#initialize. Ideally raising a warning so that people can find their problems. Case 2. You have a little hierarchy Root and Subclass1 Subclass2 classes Root class defines an initialize method. You should not redefine initialize in Subclass1 and do a super initialize else we get a double initialize. Not easy to grasp so I guess that many people are making this mistake. Solution 2. Cyril added a rule in a ReleaseTest (yes this is cool and we should use more rules and not code by hand in the releaseTest) that checks for no class side super initialize in Pharo. Now long time ago I thought that this class initialize is not that good and that I would like to have a way that class state dependencies do not have to be resolved by the developers by initializing first A then B but that the system could do it automatically. In this case we would not need initialize by class construction. Do you have an idea how such design could be? Iâm too dead right now to think but to me it feels a bit similar to lazy initialization. If all the shared variables would be only accessed by lazy accessors then we do not need to initialize them statically. Now this is a bit extreme but this is to illustrate my wish. So let us know :) Stef

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This week (04/2024) on the Pharo Issue Tracker
by Marcus Denker Jan. 29, 2024

Jan. 29, 2024

This week (04/2024) on the Pharo Issue Tracker # Pharo 11 - [Backport] Improve the way to know if a class includes a trait #15987 https://github.com/pharo-project/pharo/pull/15987 # Fixes - Fix: #16011 adding the lost return #16012 https://github.com/pharo-project/pharo/pull/16012 - Improve the way to know if a class includes a trait #15986 https://github.com/pharo-project/pharo/pull/15986 - Fix for Wrong text selection: selection selects an extra character #16010 https://github.com/pharo-project/pharo/pull/16010 - Fix #15997: Enhancement: Add printOn: on PragmaAndShortCutRegistrationItem #15998 https://github.com/pharo-project/pharo/pull/15998 - Fix #15994: morphicUIManager is missing #15995 https://github.com/pharo-project/pharo/pull/15995 - Add missing caret in #textToDisplay method. #15992 https://github.com/pharo-project/pharo/pull/15992 # Refactoring Engine - Refactorings: second pass on preconditions #16017 https://github.com/pharo-project/pharo/pull/16017 - Fix ReDoNotSendSuperInitializeInClassSideRule in Calypso #16007 https://github.com/pharo-project/pharo/pull/16007 - Enh/drivers #16004 https://github.com/pharo-project/pharo/pull/16004 # Cleanup - Remove gofer references #16008 https://github.com/pharo-project/pharo/pull/16008 - Categorize methods in Metacello #16005 https://github.com/pharo-project/pharo/pull/16005

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This week (02/2024) on the Pharo Issue Tracker
by Marcus Denker Jan. 23, 2024

Jan. 23, 2024

# Fixes - 15941-WeakLayout--isWords-is-unknown-and-break-tests #15942 https://github.com/pharo-project/pharo/pull/15942 - Fix class and trait definition printing to consider package tags #15935 https://github.com/pharo-project/pharo/pull/15935 - Extend FFIExternalStructureReferenceHandle with tfPointerAddress #15666 https://github.com/pharo-project/pharo/pull/15666 - Fix a bug in return simulation #15632 https://github.com/pharo-project/pharo/pull/15632 # Speed - Speedup Float and Integer comparison #15949 https://github.com/pharo-project/pharo/pull/15949 # Metacello - Add back currentlyLoadedClassesInVersion in metacello registrations #15943 https://github.com/pharo-project/pharo/pull/15943 - Fix metacello override cases #15938 https://github.com/pharo-project/pharo/pull/15938 - Deprecate MetacelloIgnorePackageLoaded #15937 https://github.com/pharo-project/pharo/pull/15937 - Unify access to projectReferenceSpec #15934 https://github.com/pharo-project/pharo/pull/15934 - Deprecate Gofer #15897 https://github.com/pharo-project/pharo/pull/15897 # Refactoring Engine - Refactor: pass on refactoring preconditions #15954 https://github.com/pharo-project/pharo/pull/15954 # Cleanup - Display cleanups #15945 https://github.com/pharo-project/pharo/pull/15945 - Cleaning delay and time dependencies. #15944 https://github.com/pharo-project/pharo/pull/15944

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This week (01/2024) on the Pharo Issue Tracker
by Marcus Denker Jan. 23, 2024

Jan. 23, 2024

# Feature - Add Search filter to Epicea #15842 https://github.com/pharo-project/pharo/pull/15842 # Fixes - fix #15893 bad system commitish #15894 https://github.com/pharo-project/pharo/pull/15894 # Refactoring Engine - Fix order of rename. #15921 https://github.com/pharo-project/pharo/pull/15921 - Remove old RBRenameMethodRefactoring (unused) #15920 https://github.com/pharo-project/pharo/pull/15920 - Fixed lost menu for rename method #15915 https://github.com/pharo-project/pharo/pull/15915 - Renaming drivers #15909 https://github.com/pharo-project/pharo/pull/15909 - 2023 12 29 rename method driver #15881 https://github.com/pharo-project/pharo/pull/15881 # Metacello - More Metacello simplifications #15888 https://github.com/pharo-project/pharo/pull/15888 # Cleanup / Documentation - Fixed obvious unnecessary users of duration. #15854 https://github.com/pharo-project/pharo/pull/15854 - Feature/Integer documentation #15911 https://github.com/pharo-project/pharo/pull/15911 - Doing a pass on comments and protocol to improve understanding the mock #15917 https://github.com/pharo-project/pharo/pull/15917 - Cleanup: more notNil / ifNotNil cases #15901 https://github.com/pharo-project/pharo/pull/15901

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This week (52/2023) on the Pharo Issue Tracker
by Marcus Denker Jan. 23, 2024

Jan. 23, 2024

# Fixes - Fix Enlumineur Pretty Printer "One line messages" setting not showing options #15819 https://github.com/pharo-project/pharo/pull/15819 - Restore #removeMethod:inClass: method #15889 https://github.com/pharo-project/pharo/pull/15889 - Explicitly set initial focus to the query browser table during open #15880 https://github.com/pharo-project/pharo/pull/15880 - Open class browser on Cmd/Ctrl B in the message brp #15868 https://github.com/pharo-project/pharo/pull/15868 - Fix #15861: NeccVariableEntry crashs with trying to complete 'Display #15862 https://github.com/pharo-project/pharo/pull/15862 # Metacello Cleanup - Metacello Cleanup V2 #15846 https://github.com/pharo-project/pharo/pull/15846 - Christmas cleanup and modularisations V2 #15870 https://github.com/pharo-project/pharo/pull/15870 # Refactoring Engine - Fix Add argument refactoring failing in class side methods #15879 https://github.com/pharo-project/pharo/pull/15879 - Another pass on rename variable driver with caro #15829 https://github.com/pharo-project/pharo/pull/15829 # Cleanup UIManager - Replace UIManager progress bars with Job #15878 https://github.com/pharo-project/pharo/pull/15878 - Cleanups in UIManager dependencies #15836 https://github.com/pharo-project/pharo/pull/15836 # Cleanup - Better Time class comment and tests #15864 https://github.com/pharo-project/pharo/pull/15864 - Fixing class names and uncategorised methods #15853 https://github.com/pharo-project/pharo/pull/15853

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