September 2014 - Pharo-dev - lists.pharo.org

Proportional Tab Stops
by J.F. Rick Sept. 3, 2014

Sept. 3, 2014

Hi everyone, I'm writing for two reasons. First, I wanted to let people know that I haven't disappeared. I'm just having to take a break as I finish up with my current academic post. As I am no longer going to be there, Pharo contributions don't help the department. So, I can't justify devoting any time to Pharo. But, I'm still interested in Athens, multitouch support, and Pharo for beginners. In October, I move back to Atlanta and will start a company. At that point, I aim to be back, though I may concentrate a bit more on server technology (full version of newest QRCode specifications half way done). Second, I wanted to mention a slight annoyance and suggest a solution. Background: I taught a class on introduction / intermediate programming in Pharo the last few years. One thing I try to teach my students is to use proper indention for their code. Unlike Python (great syntax for a first language), you do not need to indent in Smalltalk for code to work properly so students don't have to properly use indention to organize their code. For tiny bits of code (as is required in introductory programming), indention is not that important but it gets more important as they advance. Even my better students often used bad indention practices, though I emphasized it in class and all sample code I gave them was properly indented. In class, I often solved problems and demonstrated code. So that students could see what I typed, I increased the size of the font (24pt standard font). Though the font increased, the tab spacing remained the same. So, when I indented with one tab, it looked much smaller than a tab would have looked on their 10pt code editor. I saw people using spaces to indent code, which I never talked about. My guess is that they were trying to replicate the amount of space that my code was indented. They saw that a tab looked too big and used spaces. A simple solution is for tab spacing in code panes to increase proportionally with the font size. I feel like suggesting that as an improvement for Pharo 4. Does that seem reasonable? Are there arguments against it? Cheers, Jeff -- Jochen "Jeff" Rick, Ph.D. http://www.je77.com/ Skype ID: jochenrick

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nil pointersTo size
by Ben Coman Sept. 3, 2014

Sept. 3, 2014

I am curious... what does it mean that nil PointersTo size is a large number? Intuitively I'd have thought the answer would be zero. Pharo build 40196 --> ~101,000 Pharo build 30856 --> ~103,000 Pharo build 20628 --> ~80,000 Squeak 4.5 --> ~40,000 cheers -ben

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[Off Topic] PHARO - Already Dead - YouTube
by Sven Van Caekenberghe Sept. 3, 2014

Sept. 3, 2014

We should sue this guy ;-) https://www.youtube.com/watch?v=S3uktGJVebE

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[pharo-project/pharo-core]
by GitHub Sept. 3, 2014

Sept. 3, 2014

Branch: refs/tags/40198 Home: https://github.com/pharo-project/pharo-core

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[pharo-project/pharo-core] dd8739: 40198
by GitHub Sept. 3, 2014

Sept. 3, 2014

Branch: refs/heads/4.0 Home: https://github.com/pharo-project/pharo-core Commit: dd8739108d56ca8cfd1ee003ca846101eab522c9 https://github.com/pharo-project/pharo-core/commit/dd8739108d56ca8cfd1ee003… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2014-09-03 (Wed, 03 Sep 2014) Changed paths: M AsmJit-x86.package/AJx86InstructionDescription.class/instance/emitting/emitsmnemonic_operand1_operand2_operand3_.st M ProfStef-Core.package/PharoSyntaxTutorial.class/instance/interactive/prepareDebuggerExample.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - scripts/script198.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - updates/update40198.st M ScriptLoader40.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st M Spec-Debugger.package/EyeDebuggerContextInspector.class/instance/list/generateElements.st Log Message: ----------- 40198 13942 Deselecting stacklist can throw MNU https://pharo.fogbugz.com/f/cases/13942 13945 Author reset should not be called directly https://pharo.fogbugz.com/f/cases/13945 http://files.pharo.org/image/40/40198.zip

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[pharo-project/pharo-core]
by GitHub Sept. 3, 2014

Sept. 3, 2014

Branch: refs/tags/40197 Home: https://github.com/pharo-project/pharo-core

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[pharo-project/pharo-core] f3cc5d: 40197
by GitHub Sept. 3, 2014

Sept. 3, 2014

Branch: refs/heads/4.0 Home: https://github.com/pharo-project/pharo-core Commit: f3cc5d2f04f303f3132b6d095b7a656e1f7e9754 https://github.com/pharo-project/pharo-core/commit/f3cc5d2f04f303f3132b6d09… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2014-09-03 (Wed, 03 Sep 2014) Changed paths: M OpalCompiler-Core.package/extension/TClass/instance/classSideCompiler.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - scripts/script197.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - updates/update40197.st M ScriptLoader40.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st Log Message: ----------- 40197 13938 Opal, custom compilers and class side methods https://pharo.fogbugz.com/f/cases/13938 http://files.pharo.org/image/40/40197.zip

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[ANN] Pointer Detective
by Ben Coman Sept. 3, 2014

Sept. 3, 2014

greetings all, I had an itch to scratch... I find it difficult using the tree list of the standard Pointer Explorer to track down why objects aren't garbage collected. I always fear I'm not going to notice getting caught in a reference loop. So I created a tool presenting an alternative view as a directed graph. The graph incrementally builds out from the target object as you explore it. Nodes are colourised to help manage complexity. The attached snapshot is produced from evaluating the following Workspace script... testObject := 'END5'. ref1 := { testObject. nil }. ref2 := { ref1 }. ref3 := PDTestResource new heldObject: ref2. ref1 at: 2 put: ref3. "note the reference loop this creates" PointerDetective openOn: testObject. Now I expect I'm duplicating something done before, but I couldn't find anything quickly and it was an opportunity for some goal direct learning of Morphic. Thanks to Roassal an option for a spring-force layout is provided. That code was copied rather than create a dependency, and might need to be rationalized later. The code is a bit rough from hacking around learning how to make things work, but its functional, so its time to get it out in the open. For more information please refer to the repository home page... http://smalltalkhub.com/#!/~BenComan/PointerDetective cheers -ben

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Is IDE4PLC Pharo based?
by Sebastian Sastre Sept. 2, 2014

Sept. 2, 2014

Anybody knows? https://news.ycombinator.com/item?id=8260594 sebastian o/ blog: http://sebastianconcept.com LinkedIn: http://www.linkedin.com/in/sebastiansastre github: https://github.com/sebastianconcept

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Re: [Pharo-dev] [ANN] Pointer Detective
by Stephan Eggermont Sept. 2, 2014

Sept. 2, 2014

Nice work! I'm getting inspired. Stephan

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