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[Pharo-project] Fwd: [squeak-dev] Re: [ENH] Syntax extension for continuations
by StÃ©phane Ducasse Nov. 1, 2010

Nov. 1, 2010

Begin forwarded message: > From: pharo-project-owner(a)lists.gforge.inria.fr > Date: November 1, 2010 7:33:55 AM GMT+01:00 > To: stephane.ducasse(a)gmail.com > Subject: Re: [squeak-dev] Re: [Pharo-project] [ENH] Syntax extension for continuations > > You are not allowed to post to this mailing list, and your message has > been automatically rejected. If you think that your messages are > being rejected in error, contact the mailing list owner at > pharo-project-owner(a)lists.gforge.inria.fr. > > > From: stephane ducasse <stephane.ducasse(a)gmail.com> > Date: November 1, 2010 7:33:52 AM GMT+01:00 > To: "Pharo-project(a)lists.gforge.inria.fr Development" <Pharo-project(a)lists.gforge.inria.fr> > Subject: Re: [squeak-dev] Re: [Pharo-project] [ENH] Syntax extension for continuations > > > +1 > >> This idea comes up every few years. This post sums up well the last attempt: http://blog.3plus4.org/2007/08/30/message-chains/ . >> >> I don't think it's worth changing the syntax for this. IMHO 1-2 pairs of parentheses usually improve readability. More parenthesis is rarely needed. Also mixing ;; with ; makes the code harder to understand. Try this: self foo ; bar ;; baz ; foo ;; bar ; baz. >> >> Note that the term 'continuation' means a totally different thing: http://en.wikipedia.org/wiki/Continuation . > > Stef > >

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Re: [Pharo-project] [ENH] Syntax extension for continuations
by Igor Stasenko Nov. 1, 2010

Nov. 1, 2010

On 1 November 2010 05:33, Levente Uzonyi <leves(a)elte.hu> wrote: > On Mon, 1 Nov 2010, Igor Stasenko wrote: > >> On 1 November 2010 05:04, Levente Uzonyi <leves(a)elte.hu> wrote: > > snip > >>> foo ; bar ;; baz ; foo ;; bar ; baz. >>> >> this is incorrect syntax. > > This is correct: ((self foo; bar) baz; foo) bar; baz. > Message chaining should be equivalent with this, shouldn't it? > yes, but continuation err.. chaining ';;' takes precedence before cascade ';' which means that you can write only as: self foo zork ;; bar ;; bum ; baz ; lz but not self foo zork ; bar ;; bum ; baz ;; lz otherwise you will also need to use parens to disambiguate nested cascades. > > Levente > -- Best regards, Igor Stasenko AKA sig.

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[Pharo-project] [ENH] Syntax extension for continuations
by Igor Stasenko Nov. 1, 2010

Nov. 1, 2010

Hello, Out of curiosity, i tried to look how it would be hard to change parser to support extended continuation syntax. And it was quite simple, i had to change only single method! A new syntax using double semicolon ';;' to indicate a continuation. So, code like: self foo ;; bar ;; zork is equivalent to: self foo bar zork But when its going to binary, or keyword messages, it allows to write more clean code, because it not requires using parenthesis. For instance: (1/10) asFloat with new syntax can be written as: 1/10 ;; asFloat More complex example: ((self foo: bar) + 10 ) baz can be written as self foo: bar ;; + 10 ;; baz Note, that it is same number of characters to type.. but is much more clean, and less time expensive to code, because when you coding, you usually type first message: self foo: bar ` and then you realising that next message is binary and hence you need to go back to beginning of line and put open paren there: `( self foo: bar then again, go to the end of message, and continue typing: ( self foo: bar ` ) + 10 ` - is cursor position. so, it is much more keystrokes & navigation than just typing two semicolons :) P.S. don't burn me for my herecy, please :) -- Best regards, Igor Stasenko AKA sig.

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[Pharo-project] Failing tests in 1.2
by Marcus Denker Oct. 31, 2010

Oct. 31, 2010

... bug Issues for all of them http://code.google.com/p/pharo/issues/list?can=2&q=type=FailingTest -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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Re: [Pharo-project] InputEventFetcher starving all other processes
by StÃ©phane Ducasse Oct. 31, 2010

Oct. 31, 2010

what is strange is that pharo does not change the vm code. One which OS are you? > Hi: > > On 31 Oct 2010, at 19:15, Stefan Marr wrote: > >> But the symptoms are that InputEventFetcher>>primGetNextEvent: delivers 500-1000x more events than EventSensor>>primGetNextEvent: in MVC or Squeak 4.1 images deliver. > Turns out that the array which is supposed to be filled in by '>>primGetNextEvent: array' does not get filled in correctly. > For some reason the old values stay in the array when there isn't any new event. may be a semaphore or something like that prevents some actions to happen. > > However, the very same code works for the non-Pharo images. > > Was there any change to the code in or related to this primitive (<primitive: 94>) lately? > > Thanks > Stefan > > > -- > Stefan Marr > Software Languages Lab > Vrije Universiteit Brussel > Pleinlaan 2 / B-1050 Brussels / Belgium > http://soft.vub.ac.be/~smarr > Phone: +32 2 629 2974 > Fax: +32 2 629 3525 > >

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Re: [Pharo-project] About literalDictionary
by StÃ©phane Ducasse Oct. 31, 2010

Oct. 31, 2010

ok thanks! On Oct 31, 2010, at 9:23 PM, Levente Uzonyi wrote: > On Sun, 31 Oct 2010, stephane ducasse wrote: > >> Hi levente >> >> I saw that literalDictionary was removed from squeak compiler. >> Can you tell us the reason? > > - one class less in the system > - one class less in the HashedCollection hierarchy, so it will be easier to migrate HashedCollections to the new object format > - we have a nice example for PluggableDictionary > > > Levente > >> Tx >> >> Stef >> >> >

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Re: [Pharo-project] Fwd: about OPAX
by StÃ©phane Ducasse Oct. 31, 2010

Oct. 31, 2010

Thanks!!! On Oct 31, 2010, at 8:06 PM, Tudor Girba wrote: > Done. > > Doru > > On 31 Oct 2010, at 12:17, StÃ©phane Ducasse wrote: > >> Hi doru >> >> could you take 15 min and add comments to the OPAX classes? >> in XMLSupport. There is not a line of comments, so I know that this is your private code that got there but still. >> >> Stef >> >> >> >> > > -- > www.tudorgirba.com > > "Don't give to get. Just give." > > > > > >

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Oct. 31, 2010

Yes mike rueger changes the poll behavior of the sensor. The idea is to get rid of polling. Stef On Oct 31, 2010, at 5:06 PM, Stefan Marr wrote: > Hi: > > I am currently trying to get Pharo running smoothly on our RoarVM. > However, there seem to be some changes in Pharo which lead to the image not making any progress. > > For my experiments, I am using the latest 1.2 core image. > > Do you know about any changes in Pharo, compared to Squeak 4.1, with respect to input event retrieval and perhaps the event processing? > > Thanks > Stefan > > -- > Stefan Marr > Software Languages Lab > Vrije Universiteit Brussel > Pleinlaan 2 / B-1050 Brussels / Belgium > http://soft.vub.ac.be/~smarr > Phone: +32 2 629 2974 > Fax: +32 2 629 3525 > >

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[Pharo-project] About literalDictionary
by stephane ducasse Oct. 31, 2010

Oct. 31, 2010

Hi levente I saw that literalDictionary was removed from squeak compiler. Can you tell us the reason? Tx Stef

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Oct. 31, 2010

thanks lukas what is magritte2 vs magritte? Because I 'm trying to rebuild an old image of mine that use an old version of magritte Stef On Oct 31, 2010, at 10:11 AM, Lukas Renggli wrote: > Until somebody figures out why the configuration does not work you > could use the following script from > http://github.com/renggli/builder/blob/master/scripts/magritte2.st. Of > course this assumes that Seaside 3 is already loaded. > > Gofer new > renggli: 'magritte2'; > package: 'Magritte-Model'; > package: 'Magritte-Pharo-Model'; > package: 'Magritte-Seaside'; > package: 'Magritte-Pharo-Seaside'; > package: 'Magritte-Morph'; > package: 'Magritte-Tests-Model'; > package: 'Magritte-Tests-Pharo-Model'; > load. > > Lukas > > On 31 October 2010 09:38, stephane ducasse <stephane.ducasse(a)free.fr> wrote: >> Hi >> >> I want to load magritte with Seaside 3.0 and I followed >> >> http://book.pharo-project.org/book/PharoTools/Magritte/ >> >> Magritte2 For Pharo With Seaside 3 >> >> Gofer it >> squeaksource: 'MetacelloRepository'; >> package: 'ConfigurationOfMagritte'; >> load. >> (ConfigurationOfMagritte2 project version: '2.0.5') load >> >> but I does not load. >> >> Stef >> >> >> >> > > > > -- > Lukas Renggli > www.lukas-renggli.ch >

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