November 2011 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] Instantiating from a Symbol
by Henrik Sperre Johansen Nov. 7, 2011

Nov. 7, 2011

On 07.11.2011 15:33, Henrik Sperre Johansen wrote: > On 07.11.2011 15:29, Markus Rother wrote: >> The issue I could not solve on my own is this: >> I would like to instantiate from symbols. My use-case is a collection >> of class names which I want to ask to return one instance each. >> >> Such that: >> #Foo asClass new -> a Foo >> whereas asClass is the method I am looking for. >> > (self environment at: #Foo) new -> a Foo > > Cheers, > Henry > Or if you want it to only resolve Symbols which are actually classes: self environment classNamed: #Foo Example: self environment at: #Transcript -> a TreadSafeTranscript self environment classNamed: #Transcript -> nil Also, if not found, classNamed: returns nil, while at: raises an error. Cheers, Henry

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[Pharo-project] Pharo suffers internal Traffic Jams ...
by Guido Stepken Nov. 7, 2011

Nov. 7, 2011

Hi guys! Please first first have a look at that simulation: http://www.youtube.com/watch?v=EmMY1nq_tgI Surprisingly the architecture of pharo looks very much this. Message sends, "information flow" through a dynamic ambience of "living objects" cause serious "hangs" Unpredictable traffic jams occurr, depending on load, e.g. Seaside, during GC, Image sync, subtile timeouts or countdows, waiting for resources to be freed, network timeouts, database lookups, e.t.c. Those can much easier be identified, when you downclock your machine to good old 50MHz of ancient times of squeak and develop/profile then. Design flows pretty soon become visible then, that are not visible when you proudly use always the newest Apple machine for development. >From advanced Software architects of a new old Smalltalk OS i expect to know about such dynamic phenomenons, having deep insight into analytically identifying such normally difficult to indentifying problems, that always should be part of TDD ... Tnx for reading and understanding. Have fun! Guido Stepken

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[Pharo-project] [update 1.4] #14220
by StÃ©phane Ducasse Nov. 6, 2011

Nov. 6, 2011

14220 ----- - Issue 4978: DNU: RGMethodDefinition>>first. Thanks Guillermo Polito and Benjmain van Ryseghem. http://code.google.com/p/pharo/issues/detail?id=4978 - Issue 4909: Fraction readFromString: 1/2 ---> 1. Thanks Nicolas Cellier. http://code.google.com/p/pharo/issues/detail?id=4909 Here is a restricted implementation (with tests) which - does not handle parenthesis - does not handle spaces - does not modify Number class>>readFrom: Number readFrom: 1/2 --> 1 Fraction readFrom: 1/2 --> 1/2 - Issue 4971: adding author to compiledMethod and authors to class. http://code.google.com/p/pharo/issues/detail?id=4871 - Issue 4975: Some tests that verify system consistency. Thanks lukas Renggli. http://code.google.com/p/pharo/issues/detail?id=4975 Stef

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[Pharo-project] MAC OS upgrade and Pharo compatibility
by Dario Trussardi Nov. 6, 2011

Nov. 6, 2011

Hi, i'm interested to upgrade my MacBook Operating System, from Leopard to Lion version. I'm not expert about it and i will not do error. My question is about Pharo compatibility. Now i work with Pharo 1.0 #10517 and GemTools 1.0-beta.8.3. I need to do something or all work fine after upgrade the O/S ? Thanks, Dario P.S. Excuse me if question is not very very pertinent to Pharo

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[Pharo-project] Funny DrGeo sketch
by Hilaire Fernandes Nov. 6, 2011

Nov. 6, 2011

http://blog.ofset.org/hilaire/index.php?post/2011/10/28/Huge-sketch

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[Pharo-project] crash of the vm on ubuntu
by Alexandre Bergel Nov. 6, 2011

Nov. 6, 2011

Hi! My students are experiencing frequent crashes of the CogVM when playing with Spy (a profiling framework that instrument compile methods and replace them during the execution). My students use a MooseOneClick bundle. I am not sure which version of the CogVM they use actually. Is there a way to check this? Anyone has experienced frequent crashes with Ubuntu? Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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[Pharo-project] Keymapping Questions
by Sean P. DeNigris Nov. 6, 2011

Nov. 6, 2011

Where can I find documentation on Keymapping (if it exists)? Here are the basics I have so far: * the available set of shortcuts is per-class * a shortcut is created by creating a builder method (similar to World Menu registration) annotated with <keymap> * shortcuts are grouped into categories * categories (not individual shortcuts) are attached to Morph classes via KMBuilder>>attachShortcutCategory:to: * the system is updated when "KMPragmaKeymapBuilder uniqueInstance" resets itself via #reset (but see problems below) Questions: * What is the purpose of naming shortcuts? * Why are shortcuts held by categories as named entries and separately as keymaps? There seems to be a problem with updating shortcuts (esp. changing existing ones): * It seems that when an existing named shortcut is modified, eventually KMShortcut>>shortcutHasChangedIn:by: is called, but this method does nothing, so the shortcut never gets updated. Why is this? It seems like a bug. * When a <keymap> method is saved in OB, KMPragmaKeymapBuilder>>reset is called twice - once via AnnouncementSubscription>>deliver:, and once via KMPragmaKeymapBuilder>>event: * Because KMRepository class>>reset is never called, it becomes very dirty if shortcuts are repeatedly edited. For example, create a shortcut named "myShortcut" with Cmd+D in Category "Test", now change its name and accept the code. You will have two shortcuts with the same key combination. Now change to Cmd+E and accept again. You will have three shortcuts, even though you have only one specified in your builder method... So it seems to me to keep integrity in the shortcuts, either: * "KMRepository reset" when anything is changed, and start from scratch * or, improve KMPragmaKeymapBuilder>>reset's ability to keep the system clean. Sean -- View this message in context: http://forum.world.st/Keymapping-Questions-tp3990667p3990667.html Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

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Nov. 6, 2011

Hi guys I introduce log to replace Transcript show: â¦ logCr and crLog Now stupidly I did not notice that it will capture log on number :( and also on collection, So any suggestion of what would be a nice logging message? short and cool. Stef

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Nov. 6, 2011

14219 ----- - Issue 4956: Optimized RunArray. Thanks Nicolas Cellier. http://code.google.com/p/pharo/issues/detail?id=4956

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Nov. 6, 2011

14218 ----- - Issue 4952: Browse senders from a flat message list leads to MessageNotUnderstood. Thanks Nicolas Cellier for whining endlessly :) Tools should always work :). Thanks for Benjamin van Ryseghem for the good fix and spirit. http://code.google.com/p/pharo/issues/detail?id=4952 - Fix openComparision... -> openComparison....

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