September 2016 - Pharo-users

Re: [Pharo-users] Get implementors list window from Spotter

by Tudor Girba

You can also press do: mySelector Cmd+m Cheers, Doru > On Sep 20, 2016, at 8:18 PM, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: > > mySelector #impl > >> On 20 Sep 2016, at 20:00, Esteban A. Maringolo <emaringolo(a)gmail.com> wrote: >> >> Hi, >> >> How can I open the implementors list from Spotter? >> >> I want to browse through the code of the different implementors as I >> do by selecting a selector and searching an implementor (or Ctr+M). >> >> Regards, >> >> Esteban A. Maringolo >> > > -- www.tudorgirba.com www.feenk.com "Quality cannot be an afterthought."

Sept. 20, 2016

Re: [Pharo-users] Get implementors list window from Spotter

by Esteban Lorenzano

mySelector #impl > On 20 Sep 2016, at 20:00, Esteban A. Maringolo <emaringolo(a)gmail.com> wrote: > > Hi, > > How can I open the implementors list from Spotter? > > I want to browse through the code of the different implementors as I > do by selecting a selector and searching an implementor (or Ctr+M). > > Regards, > > Esteban A. Maringolo >

Sept. 20, 2016

Get implementors list window from Spotter

by Esteban A. Maringolo

Hi, How can I open the implementors list from Spotter? I want to browse through the code of the different implementors as I do by selecting a selector and searching an implementor (or Ctr+M). Regards, Esteban A. Maringolo

Sept. 20, 2016

UK Smalltalk User Group Meeting - Monday, September 26th

by Giovanni Corriga

Hi, The next meeting of the UK Smalltalk User Group Meeting will be on Monday, September 26th. We'll meet at our usual venue The Counting House ( http://www.the-counting-house.com/) at 7pm. If you'd like to join us, you can just show up at the pub. You can also sign up in advance at the meeting's Meetup page: https://www.meetup.com/UKSTUG/events/233567686/ . Thanks, Giovanni

Sept. 20, 2016

Re: [Pharo-users] unsubscribe

by Ben Coman

hi Melanie, Can you check your junk mail for any confirmation emails that may have got stuck there. cheers -ben On Tue, Sep 20, 2016 at 9:58 AM, Melanie Tarr <melanie.tarr(a)gmail.com> wrote: > > > On Sun, Sep 18, 2016 at 8:22 PM, Hilaire <hilaire(a)drgeo.eu> wrote: >> >> Hi, >> >> >> My Pharo4.0 image is in a situation where each MNU exception throw from >> a DNU result in infinite loop, locking the image, even not breakable >> with alt+[.]. >> >> From the doesNotUnderstand: message, >> the "exception reachedDefaultHandler" always returns true, and it >> results in the execution of the true block, sending again the original >> message to the original object, repeating a DNU and so on. >> >> Any idea how to fix that? >> >> Thanks >> >> Hilaire >> >> >> >> doesNotUnderstand: aMessage >> "Handle the fact that there was an attempt to send the given >> message >> to the receiver but the receiver does not understand this message >> (typically sent from the machine when a message is sent to the receiver >> and no method is defined for that selector)." >> "Testing: (3 activeProcess)" >> >> | exception resumeValue | >> (exception := MessageNotUnderstood new) >> message: aMessage; >> receiver: self. >> resumeValue := exception signal. >> ^exception reachedDefaultHandler >> ifTrue: [aMessage sentTo: self] >> ifFalse: [resumeValue] >> >> >> -- >> Dr. Geo >> http://drgeo.eu >> >> >

Sept. 20, 2016

unsubscribe

by Melanie Tarr

On Sun, Sep 18, 2016 at 8:22 PM, Hilaire <hilaire(a)drgeo.eu> wrote: > Hi, > > > My Pharo4.0 image is in a situation where each MNU exception throw from > a DNU result in infinite loop, locking the image, even not breakable > with alt+[.]. > > From the doesNotUnderstand: message, > the "exception reachedDefaultHandler" always returns true, and it > results in the execution of the true block, sending again the original > message to the original object, repeating a DNU and so on. > > Any idea how to fix that? > > Thanks > > Hilaire > > > > doesNotUnderstand: aMessage > "Handle the fact that there was an attempt to send the given > message > to the receiver but the receiver does not understand this message > (typically sent from the machine when a message is sent to the receiver > and no method is defined for that selector)." > "Testing: (3 activeProcess)" > > | exception resumeValue | > (exception := MessageNotUnderstood new) > message: aMessage; > receiver: self. > resumeValue := exception signal. > ^exception reachedDefaultHandler > ifTrue: [aMessage sentTo: self] > ifFalse: [resumeValue] > > > -- > Dr. Geo > http://drgeo.eu > > >

Sept. 20, 2016

Re: [Pharo-users] Using symbol

by phil＠highoctane.be

You can search for usages of Symbol. Lots of things to learn indeed. On Mon, Sep 19, 2016 at 12:12 PM, frankl1_miky <mike1corporation(a)gmail.com> wrote: > Hi, > > I'll like to know what is happening exactly in background when I'm using a > symbol as in *Collection withAllSubclasses collect: #numberOfLinesOfCode*. > > I also want to know the other cases where I can use symbol. > > Is there any tutorial about using symbol? > > Thanks > > > > -- > View this message in context: http://forum.world.st/Using- > symbol-tp4916159.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > >

Sept. 19, 2016

Re: [Pharo-users] doesNotUnderstand: infinit loop

by Hilaire

Guille, Can you send me your email at hilaire [at] drgeo.eu, I can't have it through the Gmane news forum. Hilaire Le 19/09/2016 Ã 10:21, Guille Polito a Ã©crit : > Hillaire, if you have an image with the problem, can you forward it to > me? I'm looking forward to kill this bug with my axe. -- Dr. Geo http://drgeo.eu

Sept. 19, 2016

Re: [Pharo-users] Using symbol

by Ben Coman

On Mon, Sep 19, 2016 at 6:12 PM, frankl1_miky <mike1corporation(a)gmail.com> wrote: > Hi, > > I'll like to know what is happening exactly in background when I'm using a > symbol as in *Collection withAllSubclasses collect: #numberOfLinesOfCode*. Nicolas has a good answer. Now you could explore this yourself. First, as a reference inspect "Collection withAllSubclasses" on its own. Then try debugging into the expression (from the context menu in the Playground.) In particular in OrderedCollection>>collect: step-INTO "aBlock value: ....." For an even lower level (probably too low), try debugging into... OpalCompiler compile: 'Collection withAllSubclasses collect: #numberOfLinesOfCode' or more simply debug... OpalCompiler compile: '#numberOfLinesOfCode inspect'. Other things you could explore * Look at the class comment for class Symbol * Look at the tests of class SymbolTest * In the Browser with class Symbol selected, right-click and choose Analyze>Class refs. cheers -ben > > I also want to know the other cases where I can use symbol. > > Is there any tutorial about using symbol? > > Thanks > > > > -- > View this message in context: http://forum.world.st/Using-symbol-tp4916159.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

Sept. 19, 2016

Re: [Pharo-users] Using symbol

by Nicolas Passerini

Collection withAllSubclasses collect: #numberOfLinesOfCode is the equicalent to Collection withAllSubclasses collect: [:each | each numberOfLinesOfCode ] What happens below is that (unary) symbols are polymorphic with one parameters blocks, i.e. they understand cull: and value:, which is implemented as: value: anObject ^anObject perform: self. So in fact what will hapen is more like Collection withAllSubclasses collect: [:each | each perform: #numberOfLinesOfCode ] ... which is a bit slower than the traditional block version so you might want to think if that makes a difference in your case. You can use symbols whenever a unary block is expected, for example in most collection enumerating methods, such as do:, select:, reject:, allSatisfy:, detect:, ... (see 'enumerating' protocol in Collection class for more examples). All this methods send value: (or maybe cull:) to the received block argument, so you can pass an unary symbol instead (or even whatever object that understands value:). On Mon, Sep 19, 2016 at 12:12 PM, frankl1_miky <mike1corporation(a)gmail.com> wrote: > Hi, > > I'll like to know what is happening exactly in background when I'm using a > symbol as in *Collection withAllSubclasses collect: #numberOfLinesOfCode*. > > I also want to know the other cases where I can use symbol. > > Is there any tutorial about using symbol? > > Thanks > > > > -- > View this message in context: http://forum.world.st/Using- > symbol-tp4916159.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Sept. 19, 2016