Squeak-dev August 2015

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218 discussions

The Trunk: ShoutCore-ul.54.mcz
by commits＠source.squeak.org 12 Aug '15

12 Aug '15

Levente Uzonyi uploaded a new version of ShoutCore to project The Trunk: http://source.squeak.org/trunk/ShoutCore-ul.54.mcz ==================== Summary ==================== Name: ShoutCore-ul.54 Author: ul Time: 12 August 2015, 10:39:34.306 pm UUID: 4329b6b2-95a5-4c41-8fe3-d489f4458293 Ancestors: ShoutCore-ul.53 - added missing #shoutParserClass to PseudoClass - faster SHTextStylerST80>>setAttributesIn:fromRanges: =============== Diff against ShoutCore-ul.53 =============== Item was added: + ----- Method: PseudoClass>>shoutParserClass (in category '*ShoutCore') ----- + shoutParserClass + + ^SHParserST80 + ! Item was changed: ----- Method: SHTextStylerST80>>setAttributesIn:fromRanges: (in category 'private') ----- setAttributesIn: aText fromRanges: ranges + + | defaultAttributes newRuns newValues lastAttributes oldRuns nextIndex lastCount | - | charAttr defaultAttr attr newRuns newValues lastAttr oldRuns lastCount | - oldRuns := aText runs. + defaultAttributes := self attributesFor: #default. - defaultAttr := self attributesFor: #default. - charAttr := Array new: aText size withAll: defaultAttr. - ranges do: [ :range | - (self attributesFor: range type) ifNotNil: [ :attribute | - charAttr from: range start to: range end put: attribute ] ]. newRuns := OrderedCollection new: ranges size * 2 + 1. newValues := OrderedCollection new: ranges size * 2 + 1. + lastAttributes := nil. + nextIndex := 1. - lastAttr := nil. lastCount := 0. + ranges do: [ :range | + | attributes | + nextIndex < range start ifTrue: [ + lastAttributes == defaultAttributes + ifTrue: [ + lastCount := lastCount + range start - nextIndex. + newRuns at: newRuns size put: lastCount ] + ifFalse: [ + lastCount := range start - nextIndex. + newRuns addLast: lastCount. + lastAttributes := defaultAttributes. + newValues addLast: lastAttributes ]. + nextIndex := range start ]. + attributes := (self attributesFor: range type) ifNil: [ defaultAttributes ]. + lastAttributes == attributes + ifTrue: [ + lastCount := lastCount + range end - nextIndex + 1. - 1 to: charAttr size do: [ :i | - (attr := charAttr at: i) == lastAttr - ifTrue: [ - lastCount := lastCount + 1. newRuns at: newRuns size put: lastCount ] ifFalse: [ + lastCount := range end - nextIndex + 1. + newRuns addLast: lastCount. + lastAttributes := attributes. + newValues addLast: lastAttributes ]. + nextIndex := range end + 1 ]. + nextIndex <= aText size ifTrue: [ + lastAttributes == defaultAttributes + ifTrue: [ + lastCount := lastCount + aText size - nextIndex + 1. + newRuns at: newRuns size put: lastCount ] + ifFalse: [ + lastCount := aText size - nextIndex + 1. + newRuns addLast: lastCount. + lastAttributes := defaultAttributes. + newValues addLast: lastAttributes ] ]. - newRuns addLast: 1. - lastCount := 1. - lastAttr := newValues addLast: attr ] ]. aText runs: (RunArray runs: newRuns values: newValues). + oldRuns withStartStopAndValueDo: [ :start :stop :attribs | - oldRuns withStartStopAndValueDo:[:start :stop :attribs| (attribs anySatisfy: [ :each | each shoutShouldPreserve ]) ifTrue: [ attribs do: [ :each | aText addAttribute: each from: start to: stop ] ] ]. !

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The Trunk: ShoutCore-ul.53.mcz
by commits＠source.squeak.org 12 Aug '15

12 Aug '15

Levente Uzonyi uploaded a new version of ShoutCore to project The Trunk: http://source.squeak.org/trunk/ShoutCore-ul.53.mcz ==================== Summary ==================== Name: ShoutCore-ul.53 Author: ul Time: 9 July 2015, 9:02:55.969 pm UUID: 37c4556b-dd26-4057-9e75-31334495ba7e Ancestors: ShoutCore-ul.52 In SHMCClassDefinition >> #sharedPools, the global should be added to the result instead of a block. =============== Diff against ShoutCore-ul.52 =============== Item was changed: ----- Method: SHMCClassDefinition>>sharedPools (in category 'act like a class') ----- sharedPools | d | d := Set new. classDefinition poolDictionaries do:[:each | + d add: (Smalltalk at: each asSymbol ifAbsent:[nil]) ]. - d add: [Smalltalk at: each asSymbol ifAbsent:[nil]] ]. ^d!

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Re: [squeak-dev] How to input diacritics (like á, é, ó, ã...)
by Casimiro - GMAIL 12 Aug '15

12 Aug '15

Em 11-08-2015 22:25, Jecel Assumpcao Jr. escreveu: > Casimiro, > >> I'm developing a little parser and need to enter characters of Portuguese language like >> á, é, ã, õ, ê... but using the traditional method what happens is that I get a?, e? so on and >> so forth. Platform Linux (utf-8). Help appreciated. > This has always worked just fine on the Mac and in Windows, but the Unix > 3.6-3 VM (released on April 2, 2004) changed things so you should set > the LC_CTYPE/LC_ALL environment variables in the shell that invokes > squeak. If you use the -nointl option for the VM then dead keys are > disabled (try "squeak --help"). I'm using cog_spur. With the traditional VM diacritics worked OK, but in cog diacritics have always been a problem that I masked by using English. > > My own shell doesn't have the LC* variables set (it used to have it back > in 2004, but that probably got lost in some upgrade over the years) but > everything still seems to work for this 4.0.3-2202 VM. I use a ABNT2 > keyboard. SQUEAK_ENCODING is set to 'UTF-8'. > > Good luck! > -- Jecel > > > -- The information contained in this message is confidential and intended to the recipients specified in the headers. If you received this message by error, notify the sender immediately. The unauthorized use, disclosure, copy or alteration of this message are strictly forbidden and subjected to civil and criminal sanctions. == This email may be signed using PGP key *ID: 0x4134A417*

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Re: A question about #become: (was: Re: [squeak-dev] [ANN] Squeak 5)
by Eliot Miranda 12 Aug '15

12 Aug '15

On Wed, Aug 12, 2015 at 11:09 AM, Levente Uzonyi <leves(a)elte.hu> wrote: > I wonder if you're creating two forwarders in case of #become:, with > objects of different size, or just one forwarder for the larger object > while copying the smaller object over the larger one (when possible). > Right now it's the simplest thing that could possibly work. I think this is a great idea though. It would potentially eliminate the post-become stack scan if all objects can be becomed either by exchanging contents or (in one-way) shortening. Alas I don't have time for this right now. Any volunteers interested? Levente > > On Tue, 11 Aug 2015, Eliot Miranda wrote: > > Hi All, >> who will update http://squeak.org/downloads/ to include the 5.0 >> release? >> >> a) I suggest that the 5.0 all-in-one have a line in the left-hand table >> that includes the 4.6 release and that it precede the 4.6 release in the >> list. >> >> b) the Trunk link points to TrunkImage.zip which contains a non-Spur >> image. >> >> c) Spur VMs need to be linked to by an added line in the Virtual Machines >> list. >> >> d) Spur imagers need to be included in the Image and Changes list under >> Custom Installation >> >> e) The SqueakV50.sources file also needs to be included in the Current >> Sources list. >> >> f) we could start a History list for the 5.0 line >> >> So there are a few things to fix before 5.0 is freely downloadable. >> >> On Tue, Aug 11, 2015 at 8:23 PM, Chris Muller <ma.chris.m(a)gmail.com> >> wrote: >> In the 17 months since Squeak 4.5 was released, a huge development >> effort took place to create the next generation virtual-machine for >> the Squeak / Pharo / Newspeak family of programming systems. Squeak >> is the modern incarnation of the Smalltalk-80 programming >> environment >> originally developed at the Xerox PARC. >> >> "Squeak 5" introduces this new VM and associated new memory model, >> collectively referred to as "Spur". Presented [1] by Eliot Miranda >> and Clément Béra at the 2015 International Symposium on Memory >> Management, this new VM affords Squeak applications a significant >> boost in performance and memory management. Among other >> optimizations, the #become operation no longer requires a memory >> scan. >> Object pinning and ephemerons are also now supported. The release >> notes [2] provide more details. >> >> The new memory model requires a new image file format. Although >> this >> new format results in about a 15% increased memory requirement for >> the >> same number of 4.x objects, a new segmented heap allows memory to be >> given back to the OS when its no longer needed, a great benefit for >> application servers. >> >> As forward compatibility is as important to the Squeak community as >> backward compatibility, Squeak 5 is delivers an image with identical >> content as the recent 4.6 release. Although this new Squeak 5 VM >> cannot open images saved under the prior 4.x Cog format, objects and >> code can be easily exported from the 4.x image and then imported >> into >> Squeak 5. Applications whose code runs strictly above the Smalltalk >> meta layer will prove remarkably compatible with the new format, >> most >> applications will require no changes whatsotever. >> >> Squeak 5 is the result of monumental effort by a tiny group of very >> talented people, but its also just the beginning of yet a new >> effort; >> Spur is just a stepping stone to a more ambitious goals planned over >> the next five years. >> >> [1] -- A Partial Read Barrier for Efficient Support of Live >> Object-oriented Programming >> >> http://conf.researchr.org/event/ismm-2015/ismm-2015-papers-a-partial-read-b… >> >> [2] -- Squeak 5 Release Notes >> http://wiki.squeak.org/squeak/6207 >> >> >> >> >> -- >> _,,,^..^,,,_ >> best, Eliot >> >> > > > -- _,,,^..^,,,_ best, Eliot

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Trunk is open
by Chris Muller 12 Aug '15

12 Aug '15

As Squeak 5 is released, please feel free to resume commits to trunk. I will upload a 5.1alpha image next week.

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The Trunk: Kernel-eem.938.mcz
by commits＠source.squeak.org 12 Aug '15

12 Aug '15

Eliot Miranda uploaded a new version of Kernel to project The Trunk: http://source.squeak.org/trunk/Kernel-eem.938.mcz ==================== Summary ==================== Name: Kernel-eem.938 Author: eem Time: 11 August 2015, 6:26:26.719 pm UUID: f142f874-0cab-43d2-98c5-92fdf103028d Ancestors: Kernel-cmm.937 Have ClassDescription>>moveChangesTo: write the class's definition before the changes if there are any so that the changes file is a potential application recovery vehicle, not just a crash recovery vehicle. =============== Diff against Kernel-cmm.937 =============== Item was changed: ----- Method: ClassDescription>>moveChangesTo: (in category 'fileIn/Out') ----- moveChangesTo: newFile "Used in the process of condensing changes, this message requests that the source code of all methods of the receiver that have been changed should be moved to newFile." | changes | + changes := self methodDict keys select: + [:sel | (self compiledMethodAt: sel) fileIndex > 1]. + changes isEmpty ifTrue: + [^self]. + newFile cr; cr; command: 'H3'; nextChunkPut: self definition; command: '/H3'; cr. - changes := self methodDict keys select: [:sel | - (self compiledMethodAt: sel) fileIndex > 1]. self fileOutChangedMessages: changes on: newFile moveSource: #historically toFile: 2!

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How to input diacritics (like á, é, ó, ã...)
by Casimiro - GMAIL 12 Aug '15

12 Aug '15

Hello, I'm developing a little parser and need to enter characters of Portuguese language like á, é, ã, õ, ê... but using the traditional method what happens is that I get a?, e? so on and so forth. Platform Linux (utf-8). Help appreciated. Best regards, CdAB -- The information contained in this message is confidential and intended to the recipients specified in the headers. If you received this message by error, notify the sender immediately. The unauthorized use, disclosure, copy or alteration of this message are strictly forbidden and subjected to civil and criminal sanctions. == This email may be signed using PGP key *ID: 0x4134A417*

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Re: [Vm-dev] Re: pharo 4.0 Crashed in the VM thread again
by Nicolai Hess 09 Aug '15

09 Aug '15

Pharo or Squeak ? In squeak, this stackframe / large stackframe bug was introduced some months ago by a change for the compiler but it is already fixed. In pharo, we have a simliar bug (in pharos compiler (opal), not related to the change on the squeak compiler). This is a bug that is known but not yet fixed 13854 <https://pharo.fogbugz.com/default.asp?13854> frameSize calculated wrongly for #lineSegmentsDo: ! 2015-08-09 18:39 GMT+02:00 tim Rowledge <tim(a)rowledge.org>: > > Sabine, > As a general rule of thumb, if a method is too long to see at a glance - > in practice this means too long to fit on your screen - then it almost > certainly needs splitting up. I have been forcibly reminded of this a lot > recently due to having to decode insanely long Python routines; seriously - > 1100 lines for a single function? > > tim > -- > tim Rowledge; tim(a)rowledge.org; http://www.rowledge.org/tim > Strange OpCodes: FSRA: Forms Skip and Run-Away > > >

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Re: [squeak-dev] The Trunk: Kernel-cmm.937.mcz
by Levente Uzonyi 09 Aug '15

09 Aug '15

I still think that we shouldn't use the Environments' Dictionary API in new code. IMHO #classNamed: is the right selector to use here: (self class environment classNamed: #BreakpointManager) ifNotNil: [ :breakPointManager | ^breakPointManager methodHasBreakpoint: self ]. ^false Levente On Thu, 6 Aug 2015, commits(a)source.squeak.org wrote: > Chris Muller uploaded a new version of Kernel to project The Trunk: > http://source.squeak.org/trunk/Kernel-cmm.937.mcz > > ==================== Summary ==================== > > Name: Kernel-cmm.937 > Author: cmm > Time: 5 August 2015, 8:06:28.072 pm > UUID: 191e34d9-22d7-4e46-ac5d-cb3cd9baf203 > Ancestors: Kernel-cmm.936 > > - #hasBreakpoint is now needed by Kernel, but must be able to operate independently of System's BreakpointManager. > > =============== Diff against Kernel-cmm.936 =============== > > Item was changed: > + ----- Method: CompiledMethod>>hasBreakpoint (in category '*Kernel-tool support') ----- > - ----- Method: CompiledMethod>>hasBreakpoint (in category 'testing') ----- > hasBreakpoint > + ^ self class environment > + at: #BreakpointManager > + ifPresent: [:bpm | bpm methodHasBreakpoint: self] > + ifAbsent: [false]! > - ^false! > > >

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Image cannot grow beyond 500Mb
by Tapple Gao 08 Aug '15

08 Aug '15

I am trying to use Moose to do run graph algorithms on data with about 300,000 nodes. This data is map data downloaded from OpenStreetMap, and I am trying to analyze it with the Moose-Analysis-Graphs package. However, it seems completely unable to handle this, partially due to unoptimized algorithms, but mostly due to memory limits of the VM or image itself. I am using the vm and image of the moose one-click image for mac: http://www.moosetechnology.org/#install <http://www.moosetechnology.org/#install> . I believe this is a pharo vm and image, I don’t know if pharo and squeak are still different these days, or if it matters. Been out of squeak for a few years This platform is seemingly unable to use more than about 500Mb of memory. I watch it in mac’s activity monitor. Once it reaches about 450Mb as measured by activity monitor, it is spending nearly all it’s time in the garbage collector, (as measured by activity monitor’s Sample Process tool). The most I’ve seen it eventually reach is 556Mb, after about an hour, then it does a hard VM crash (Pharo has quit unexpectedly). Is there a way to remedy this? I tried running the image in 4 alternative VM’s: - The latest pharo mac vm from http://files.pharo.org/vm/pharo/mac/ <http://files.pharo.org/vm/pharo/mac/> . Same issue as above. likely the same vm - Cocoa Cog vm from http://squeakvm.org/mac/ <http://squeakvm.org/mac/> : crashed at startup. could not load image - Cocoa Stack vm from http://squeakvm.org/mac/ <http://squeakvm.org/mac/> : crashed at startup; could not load image - Carbon Stack vm from http://squeakvm.org/mac/ <http://squeakvm.org/mac/> : refused to start Is it possible to allocate more than 500Mb of memory to squeak?

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