January 2015 - Pharo-users - lists.pharo.org

Programmatically changing settings values

by Torsten Bergmann

Pablo wrote >> I would like to change some of the environment settings by code Markus wrote: >The gobal compiler can be changed by SmalltalkImage compilerClass: Compiler There is an easy way how to find this out by yourself: - open World Menu >> System >> Settings and navigate to the setting - right click on a setting and choose "Browse" => this will open the Smalltalk browser on the method that defines the settings for the settings builder. In your case it should open AbstractCompiler(class)>>compilerSettingsOn: where the <systemsettings> pragma gives a hint to be used as a settings builder method. Here you will see that the target of the first setting definition is "SmalltalkImage" and the selector is #compilerClass. So you can use SmalltalkImage compilerClass to return the setting and SmalltalkImage compilerClass: MyCompiler to set it. See [1] for more (may be outdated) or better read the recent Pharo books, one includes a chapter on the settings framework. http://www.pharobyexample.org/ http://www.deepintopharo.com/ https://ci.inria.fr/pharo-contribution/job/PharoForTheEnterprise/lastSucces… Bye T. [1] http://pharo.gemtalksystems.com/book/Tidbits/CustomizingPharo/DeclaringSett…

Jan. 9, 2015

[ANN] Rewritten EventRecorder (now based on Spec)

by Torsten Bergmann

Hi, I've rewritten, refactored, commented the Event Recorder. The most visible feature is that the UI is now based on Spec to fit Pharo style. Currently it can record and replay events. Saving and loading of events as *.tape files is still missing and (depending on time) will be added as a next step. With this tool we have the ability to record and exchange actions done in an image to reproduce bugs. The tool can also be used for demo purposes. As it is already usable I made it available in the config browser of Pharo 4. Attached is a screenshot, Code is on STHub [1]. Have fun T. [1] http://smalltalkhub.com/#!/~TorstenBergmann/EventRecorder

Jan. 9, 2015

Re: [Pharo-users] Casting a string as an instance variable.

by sergio_101

perfect! speed is not a huge issue, in that this will just be a set of methods that build data one time (sort of like a rails migration) and it will not be run again.. thanks! On Fri Jan 09 2015 at 4:29:04 PM Marcus Denker <marcus.denker(a)inria.fr> wrote: > > > On 09 Jan 2015, at 18:21, sergio_101 <sergio.rrd(a)gmail.com> wrote: > > > > > > I would like to do something like: > > > > MyObject updateWIth: aDictionary. > > > > then, inside the object, treat the keys as instance variables, and the > values as values.. and do something like: > > > > (key1 asInstanceVariable(??)): value1. > > > > this seems like it should be possible, but i am just not getting it. > > > > any ideas? > > > > the magic is #instVarNamed:put: > > self instVarNamed: key1 put: value1 > > (keep in mind that this is slower than direkt access of instance variables) > > Marcus > > > > > > > >

Jan. 9, 2015

Re: [Pharo-users] Programmatically changing settings values

by Marcus Denker

> On 09 Jan 2015, at 18:27, Pablo Herrero <pablodherrero(a)gmail.com> wrote: > > Hey everyone, > > I would like to change some of the environment settings by code, > specifically I would like to change the default compiler, from the > menu you would do: World Menu >> System >> Settings >> Compiler >> > Default Compiler , and then set you preference there. How can you do > that programmatically? Yes! The gobal compiler can be changed by SmalltalkImage compilerClass: Compiler Marcus

Jan. 9, 2015

Re: [Pharo-users] Casting a string as an instance variable.

by Marcus Denker

> On 09 Jan 2015, at 18:21, sergio_101 <sergio.rrd(a)gmail.com> wrote: > > > I would like to do something like: > > MyObject updateWIth: aDictionary. > > then, inside the object, treat the keys as instance variables, and the values as values.. and do something like: > > (key1 asInstanceVariable(??)): value1. > > this seems like it should be possible, but i am just not getting it. > > any ideas? > the magic is #instVarNamed:put: self instVarNamed: key1 put: value1 (keep in mind that this is slower than direkt access of instance variables) Marcus

Jan. 9, 2015

Programmatically changing settings values

by Pablo Herrero

Hey everyone, I would like to change some of the environment settings by code, specifically I would like to change the default compiler, from the menu you would do: World Menu >> System >> Settings >> Compiler >> Default Compiler , and then set you preference there. How can you do that programmatically? Thanks in advance!, Pablo

Jan. 9, 2015

Casting a string as an instance variable.

by sergio_101

I would like to do something like: MyObject updateWIth: aDictionary. then, inside the object, treat the keys as instance variables, and the values as values.. and do something like: (key1 asInstanceVariable(??)): value1. this seems like it should be possible, but i am just not getting it. any ideas? thanks!

Jan. 9, 2015

Re: [Pharo-users] Updating Pharo

by stepharo

Le 9/1/15 17:55, nacho a Ã©crit : > Helo friends, > When I update Pharo (World --> System --> Software Update) I see some > progressbars that I don't undersand. > what is exactly snapshoting? when you want to merge the code incoming with the code in the image you need to have a representation of the code in the image using entities that can be compared wtih the code incoming. > Also, suppose I add Bloc's Monticello repository, does a Software Update > also update Bloc when an update is released? No Update is just for Plain Pharo. > Thanks in advance > Nacho > > > > > ----- > Nacho > Smalltalker apprentice. > Buenos Aires, Argentina. > -- > View this message in context: http://forum.world.st/Updating-Pharo-tp4798604.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Jan. 9, 2015

Re: [Pharo-users] issue with and/or inlining

by Marcus Denker

> On 09 Jan 2015, at 15:17, Marcus Denker <marcus.denker(a)inria.fr> wrote: > > >> On 09 Jan 2015, at 15:10, Evan Donahue <emdonahu(a)gmail.com <mailto:emdonahu@gmail.com>> wrote: >> >> Hello, >> >> I'm currently working on an embedding of the miniKanren logic programming language in Pharo (http://minikanren.org/ <http://minikanren.org/>) and I have run into an issue with the method compilation internals I was hoping someone could shed some light on: >> >> miniKanren has an operator, fresh, that basically evaluates a block and returns a logic variable. My current syntax for a conjunction of logic variables is: >> >> var1 and: var2 >> >> When I try to use the same syntax for fresh: >> >> var1 and: [ :var2 | var2 ] >> >> Compilation fails with "Warning: and: (or:) takes zero-arg block" which seems on first glance to come from the compiler attempting to inline my and: call. Another thing we can doâ¦ we could remove the warning in the method #isInlineAndOr. Then the and: would be compiled as a message as in the non-block example. Marcus

Jan. 9, 2015

Re: [Pharo-users] issue with and/or inlining

by Marcus Denker

> On 09 Jan 2015, at 15:10, Evan Donahue <emdonahu(a)gmail.com> wrote: > > Hello, > > I'm currently working on an embedding of the miniKanren logic programming language in Pharo (http://minikanren.org/ <http://minikanren.org/>) and I have run into an issue with the method compilation internals I was hoping someone could shed some light on: > > miniKanren has an operator, fresh, that basically evaluates a block and returns a logic variable. My current syntax for a conjunction of logic variables is: > > var1 and: var2 > > When I try to use the same syntax for fresh: > > var1 and: [ :var2 | var2 ] > > Compilation fails with "Warning: and: (or:) takes zero-arg block" which seems on first glance to come from the compiler attempting to inline my and: call. yes! > If I add an auxiliary method andFresh: that evaluates the block and and:'s the result in 2 steps, my tests pass. > > What I'd like to know is: > 1) Is there a work around to let me use the and: syntax here? you can do it per method by adding the pragma: <compilerOptions: #(- optionInlineAndOr)> or per class by implementing on the class side: compiler ^super compiler options: #(- optionInlineAndOr) > 2) Might my overriding of and: and or: for normal logic variables cause other problems I'm not thinking of? > I donât think soâ¦ Marcus

Jan. 9, 2015