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Pharo 12 @ ESUG2024 http://www.pharo.org

Pharo 12 has achieved significant advancements including the integration of 1895 pull requests, improved class organization, and enhanced memory usage. Key features include a revamped architecture, faster code loading, and a new graphics framework for developing apps with widgets based on the Ant Design system. Upcoming resources include the near-release of 'Spec 2.0' and new educational books in 2024.

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Pharo Smalltalk•
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Pharo12 http://sducasseatwork@mailo.com http://www.pharo.org
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Outline • Pharo 12 remarkable achievements :) • Take the time to answer your questions
Fast-paced dedication • *Just* in the Pharo repository • 1895 Pull Requests integrated closed 865 issues • Around 70 contributors • More tests
Fluid class syntax is now default
Nice looking fonts On retina Tx a lot Kris
MASSIVE cleanup • Class organization is gone • Use class builder instead of string manipulations :) • Metacello better architecture
Class organization is gone • One bullet point in a task list ‣ But six months of hard work… • Fast browsing via fully optimized package tags • Optimized memory usage for method protocols
Leaner Metacello • No more exception resume :) • No more walking the stack and jumping there • Nicer architecture • Better domain • Ready for new experiences e.g., package validation aka strict mode loading
Debug points Watch Steven’s talk
Illimani: Scalable Memory pro fi ler
Refactorings • Getting advantage of the new architecture • Migrating refactorings • Improving UI Refactorings RBMethod RBNamespace RBEntity RBAbstractClass RBPackage RBMetaclass RBClass Changes AST ParseTreeRewriter Condition Program Model Drivers UI
Various • Code loading speed improvement • Opal compiler simplifications and improvements • More robust and strict mode for FFI
Cmd-Line Launcher • All the launcher and more at your fingers :) • Watch the talk
VM side • Faster ByteArray comparison • EPoll for Idle VM • Unlimited sockets • New segmented image format • Ephemeron performance improvement • Fixes, cleanup, fixes, stability, … • Keeping up with external libs
Another pass on packaging • We can build ‣ Mac app ‣ Windown app • We want to automate it • App builder for everyone
VM side: Preparing the future • Profile JITed code • Druid AoT is now there • Controlling stack growing ‣ how to detect an endless loop ‣ alternatives to check each message send
Looking for an engineer • Two years and more • Talk to our Guishe guillermo.polito@inria.fr
Spec 2.0: a Cornerstone! • Book nearly sent to the printer! • New widgets • New layouts • GTK40 (watch Esteban talk) • Multiple back ends (Morphic, GTK40, Toplo) ‣ Watch (Toplo talk)
Bloc: New Generation • Full new implementation of graphics framework • Basis for Toplo: a new widget library based on http:// ant.design design
geometry (polygon) a BlElement background border transformation (a matrix with skew and translation) Element's visual properties
Element's outskirts aBlElement outskirts: BlOutskirts outside aBlElement outskirts: BlOutskirts centered aBlElement outskirts: BlOutskirts inside
Toplo is coming
Toplo • New widget library on TOP of bLOck • Sponsored by Thales (deployed products in 2023) • Default skins are based on https://ant.design/ • Started to work on Spec back-end Currently • All widgets except Tree/Table • Skin *second iteration*
Advanced design mooc https://advanced-design-mooc.pharo.org/ “What a great course this is. The lectures are solid. I am working through the first exercise, and I have been learning so much and consolidating the information from the lectures along with practicing pharo. I believe this course will be my model whenever I write training in the future”
New books
2024 New books • Spec 2.0 (~ready to be sent to the printer) • Reflective kernel • Concurrent programming
Questions What do you want to know?
How can we help you?
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