June 2015 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] how can we use Spotter to find reference to a class without scrolling down?

by Tudor Girba

Yes, I agree. Now, we just need to find a way that works in practice, is simple enough and is also performant :). Doru On Fri, Jun 5, 2015 at 9:59 AM, stepharo <stepharo(a)free.fr> wrote: > What I wan to say is that when you know what you want you do not need to > navigate. > Object > + cmd click > + #ref > > is too long for me. > > > > Le 4/6/15 21:52, Tudor Girba a Ã©crit : > > Hi Stef, > > What you are proposing is interesting. > > The criteria for the current language is to be minimalistic and > composable because it is supposed to work with any object, not just with > code, and the speed should be as good as possible in all cases. > > At this point, # means filter the existing list by the category. You do > not need #ref. It's enough #r. The nice thing about it is that it has clear > semantics, is cheap and composable through diving. I think this is a useful > operator that we should not remove. But, this does not mean that we cannot > play with other operators. > > We played also with other predicates, but the problem is that they are > slow, and we have limited bandwidth (we have only one process for all > computations). > > All in all, it would be cool to have experiments in this direction. > However, I would want to have simple semantics that can be explained > easily. We already have a few simple actions and people still do not use > them to their full potential. > > Cheers, > Doru > > > > On Thu, Jun 4, 2015 at 9:35 PM, stepharo <stepharo(a)free.fr> wrote: > >> But why this is so complex? >> Why I cannot have >> >> #ref Object? >> >> or something like that. >> And why do we need #ref and not >> #r >> #m >> #s >> ? >> we could have >> #p >> #c >> >> I'm a super user and I want super user tools :) >> >> Stef >> >> Le 3/6/15 01:20, Tudor Girba a Ã©crit : >> >> Hi, >> >> But, that is already possible: >> - Search for a class, like Object. >> - Dive in (Cmd+Right) >> - Type #ref >> >> And you will get the list of references to Object. >> >> Cheers, >> Doru >> >> >> >> >> On Wed, Jun 3, 2015 at 1:17 AM, Ben Coman <btc(a)openinworld.com> wrote: >> >>> I guess he means... Analyse > Class refs >>> and maybe wanting a syntax like... MyClass #ref >>> cheers -ben >>> >>> On Wed, Jun 3, 2015 at 4:12 AM, Tudor Girba <tudor(a)tudorgirba.com> >>> wrote: >>> > Hi, >>> > >>> > If you know the name of the spotter category, you can use the >>> #category, >>> > like here: >>> > >>> http://www.humane-assessment.com/blog/scoping-for-specific-search-category-… >>> > >>> > Is this what you are looking for? >>> > >>> > Cheers, >>> > Doru >>> > >>> > >>> > >>> > On Tue, Jun 2, 2015 at 10:08 PM, stepharo <stepharo(a)free.fr> wrote: >>> >> >>> >> Hi guys >>> >> >>> >> I often know that I want to look not for the class, its package or >>> >> methods.... >>> >> but that I want to get the references to a class. >>> >> >>> >> Is there a syntax that I can use to instruct spotter about my needs? >>> >> >>> >> Stef >>> >> >>> > >>> > >>> > >>> > -- >>> > www.tudorgirba.com >>> > >>> > "Every thing has its own flow" >>> >>> >> >> >> -- >> www.tudorgirba.com >> >> "Every thing has its own flow" >> >> >> > > > -- > www.tudorgirba.com > > "Every thing has its own flow" > > > -- www.tudorgirba.com "Every thing has its own flow"

June 5, 2015

Re: [Pharo-dev] how can we use Spotter to find reference to a class without scrolling down?

by stepharo

What I wan to say is that when you know what you want you do not need to navigate. Object + cmd click + #ref is too long for me. Le 4/6/15 21:52, Tudor Girba a Ã©crit : > Hi Stef, > > What you are proposing is interesting. > > The criteria for the current language is to be minimalistic and > composable because it is supposed to work with any object, not just > with code, and the speed should be as good as possible in all cases. > > At this point, # means filter the existing list by the category. You > do not need #ref. It's enough #r. The nice thing about it is that it > has clear semantics, is cheap and composable through diving. I think > this is a useful operator that we should not remove. But, this does > not mean that we cannot play with other operators. > > We played also with other predicates, but the problem is that they are > slow, and we have limited bandwidth (we have only one process for all > computations). > > All in all, it would be cool to have experiments in this direction. > However, I would want to have simple semantics that can be explained > easily. We already have a few simple actions and people still do not > use them to their full potential. > > Cheers, > Doru > > > > On Thu, Jun 4, 2015 at 9:35 PM, stepharo <stepharo(a)free.fr > <mailto:stepharo@free.fr>> wrote: > > But why this is so complex? > Why I cannot have > > #ref Object? > > or something like that. > And why do we need #ref and not > #r > #m > #s > ? > we could have > #p > #c > > I'm a super user and I want super user tools :) > > Stef > > Le 3/6/15 01:20, Tudor Girba a Ã©crit : >> Hi, >> >> But, that is already possible: >> - Search for a class, like Object. >> - Dive in (Cmd+Right) >> - Type #ref >> >> And you will get the list of references to Object. >> >> Cheers, >> Doru >> >> >> >> >> On Wed, Jun 3, 2015 at 1:17 AM, Ben Coman <btc(a)openinworld.com >> <mailto:btc@openinworld.com>> wrote: >> >> I guess he means... Analyse > Class refs >> and maybe wanting a syntax like... MyClass #ref >> cheers -ben >> >> On Wed, Jun 3, 2015 at 4:12 AM, Tudor Girba >> <tudor(a)tudorgirba.com <mailto:tudor@tudorgirba.com>> wrote: >> > Hi, >> > >> > If you know the name of the spotter category, you can use >> the #category, >> > like here: >> > >> http://www.humane-assessment.com/blog/scoping-for-specific-search-category-… >> > >> > Is this what you are looking for? >> > >> > Cheers, >> > Doru >> > >> > >> > >> > On Tue, Jun 2, 2015 at 10:08 PM, stepharo <stepharo(a)free.fr >> <mailto:stepharo@free.fr>> wrote: >> >> >> >> Hi guys >> >> >> >> I often know that I want to look not for the class, its >> package or >> >> methods.... >> >> but that I want to get the references to a class. >> >> >> >> Is there a syntax that I can use to instruct spotter about >> my needs? >> >> >> >> Stef >> >> >> > >> > >> > >> > -- >> > www.tudorgirba.com <http://www.tudorgirba.com> >> > >> > "Every thing has its own flow" >> >> >> >> >> -- >> www.tudorgirba.com <http://www.tudorgirba.com> >> >> "Every thing has its own flow" > > > > > -- > www.tudorgirba.com <http://www.tudorgirba.com> > > "Every thing has its own flow"

June 5, 2015

Re: [Pharo-dev] running the tests on my machine gives a full frozen stops and Critical failure: the LastResort font is unavailable.

by stepharo

latest Stef Le 5/6/15 05:20, Ben Coman a Ã©crit : > which build? > > On Fri, Jun 5, 2015 at 3:48 AM, stepharo <stepharo(a)free.fr> wrote: >> 015-06-04 21:47:19.836 Pharo[12527:507] Critical failure: the LastResort >> font is unavailable. >> >

June 5, 2015

Re: [Pharo-dev] running the tests on my machine gives a full frozen stops and Critical failure: the LastResort font is unavailable.

by Ben Coman

which build? On Fri, Jun 5, 2015 at 3:48 AM, stepharo <stepharo(a)free.fr> wrote: > 015-06-04 21:47:19.836 Pharo[12527:507] Critical failure: the LastResort > font is unavailable. >

June 5, 2015

Re: [Pharo-dev] [Pharo-users] Pharo 4 Image Freeze

by Martin McClure

On 06/04/2015 03:35 PM, Martin McClure wrote: > On 06/04/2015 12:38 PM, stepharo wrote: >> I passed the info to martin mcClure. >> May be he will have a look at the issue. > > Well, I can reproduce the problem, in Windows. In Linux, my usual > platform, the image does not hang. This suggests that the problem might > be in the Windows VM. Is there a way to get trace output from the VM so > I can see the sequence leading up to the hang, or a way to get a > Smalltalk stack trace from a C debugger? Well, the "trace" option to the VM sounded promising, but all that yields is an access violation while the image is loading. Regards, -Martin

June 4, 2015

Re: [Pharo-dev] [Pharo-users] Pharo 4 Image Freeze

by Martin McClure

On 06/04/2015 12:38 PM, stepharo wrote: > I passed the info to martin mcClure. > May be he will have a look at the issue. Well, I can reproduce the problem, in Windows. In Linux, my usual platform, the image does not hang. This suggests that the problem might be in the Windows VM. Is there a way to get trace output from the VM so I can see the sequence leading up to the hang, or a way to get a Smalltalk stack trace from a C debugger? Regards, -Martin > > Le 2/6/15 00:12, Nicolai Hess a Ã©crit : >> >> >> 2015-06-01 23:44 GMT+02:00 Craig Johnson <craig(a)hivemind.net >> <mailto:craig@hivemind.net>>: >> >> Sure thing. >> >> To see the bug, file the code below into a clean image and run the >> example. The when the debugger pops, step over each line in the >> method. I'm doing this on a Windows OS. >> >> Object subclass: #Cooler >> instanceVariableNames: '' >> classVariableNames: '' >> poolDictionaries: '' >> category: 'ImageFreeze'! >> >> !Cooler methodsFor: 'as yet unclassified' stamp: 'CraigJohnson >> 6/1/2015 23:31'! >> runMe >> | a | >> self halt. >> self except. >> a := 1.! ! >> >> "-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "! >> >> Cooler class >> instanceVariableNames: ''! >> >> !Cooler class methodsFor: 'as yet unclassified' stamp: >> 'CraigJohnson 6/1/2015 23:16'! >> example >> self new runMe ! ! >> >> >> This worked until pharo 40245 >> -> it looks like phase4 in issue >> 11996 <https://pharo.fogbugz.com/default.asp?11996> >> Wrong exception handler problem >> >> introduced this behavior. >

June 4, 2015

Re: [Pharo-dev] I need reviewer of https://pharo.fogbugz.com/default.asp?15646

by Nicolai Hess

2015-06-03 15:46 GMT+02:00 Thierry Goubier <thierry.goubier(a)gmail.com>: > > > 2015-06-03 15:09 GMT+02:00 Nicolai Hess <nicolaihess(a)web.de>: > >> >> >> self versionFromFileNamed: fileName >> is called after it isn't found in the MCCacheRepository >> and if it is not found in its own special repository cache , it is loaded >> with >> self loadVersionFromFileNamed: >> and this again looks up in the MCCacheRepostory: >> >> loadVersionFromFileNamed: aString >> (MCCacheRepository uniqueInstance includesFileNamed: aString) >> ifTrue: [ ^ MCCacheRepository uniqueInstance >> loadVersionFromFileNamed: aString]. >> >> ^ self versionReaderForFileNamed: aString do: [:r | r version] >> >> but this time it searches the package in the MCCacheRepitory by its name >> only and load >> the version info from that file. >> > > Thanks for finding that. Interesting, that semantic missmatch ... which > amounts to loosing the version info in places during the loading process. > > Notes for documentation : > > - FileTree changes versionFromFileNamed: to disable the internal > repository cache (but cache is still an instance variable because of > inheritance, and it goes through PackageCache). > > - GitFileTree avoids the PackageCache altogether and is the only type of > repo not to have that bug in Pharo4 (Yes! But I had no idea why :)). > > >> >>> We need to build test repositories to have correct coverage of those >>> issues, because at the moment I'm not sure I understand the case you are >>> describing :( >>> >> >> >> Try to load >> >> SLICE-Issue-15646-Cleaning-method-category-api-should-be-protocol-part-1-StephaneDucasse.1 >> from pharo 5.0 inbox repository. >> This slice has dependencies to packages >> DebuggerActions-StephaneDucasse.75, Kernel-StephaneDucasse.2042 >> which are both in pharo 5.0 main and inbox repository but with different >> uuids >> > > Yuck :( > > So, if I understood well, what is happening is: > > - Reading from Pharo5Main, DebuggerActions-StephaneDucasse.75 is loaded in > PackageCache (and in the cache of Pharo5Main). > - Comparing UUIDs say that this is not the right one. > - Reading from Pharo5Inbox, DebuggerActions-StephaneDucasse.75 is loaded > in the cache of Pharo5Inbox > - First read inside package cache say that the file exist but has the > wrong UUID > - Second read has matching file name inside Pharo5Inbox > - So it loads the version from Pharo5Inbox > - which test PackageCache for DebuggerActions-StephaneDucasse.75 ... > which is true > - But uuids don't match > - so it fails.... > > I hate package-cache. > > >> >> >> If pharo 5.0 main repository is searched first, it will only find >> packages with the wrong version info, >> even if the packages in the 5.0 inbox have the correct version info. >> > > You're right. > > So your fix should work. I would not hesitate however: > > - to move the version reading line inside versionWithInfo:ifAbsent: > - to factor the cache update into an #updateCacheWith: v (so that it can > also be called from versionFromFileNamed:) called from > versionWithInfo:ifAbsent: > > Thierry > issue and fix 15698 <https://pharo.fogbugz.com/default.asp?15698> do not load package from cache if version info differs please test and review > > >> >> >> >> >>> >>> Thierry >>> >>> >>>> >>>> >>>> >>>> >>>> >>>> >>>>> >>>>> Package loads with version info happens in two cases: >>>>> - dependency loading (i.e. slices) >>>>> - history loading (i.e. browsing history and merges). >>>>> >>>>> Anything else is loading by name, since this is what is recorded in >>>>> Configurations and Gofer scripts. >>>>> >>>>> Thierry >>>>> >>>>> >>>>>> >>>>>> nicolai >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>> >>>>>>> Maybe we could for real put (part of) the UID in the filename? >>>>>>> >>>>>>> In a disconnected system the case that the filename is the same for >>>>>>> different files will always happen if the name is contructed >>>>>>> as it is now. >>>>>>> >>>>>>> Marcus >>>>>>> >>>>>>> > On 02 Jun 2015, at 22:37, stepharo <stepharo(a)free.fr> wrote: >>>>>>> > >>>>>>> > I hate so much this bug.... >>>>>>> > >>>>>>> > >>>>>>> > Le 1/6/15 15:04, Ben Coman a Ã©crit : >>>>>>> >> Stef, I can now see all the dependent packages for the new slice, >>>>>>> but >>>>>>> >> I still have a strange error. However I'm not sure if its a bug >>>>>>> or >>>>>>> >> something unique at my end. >>>>>>> >> >>>>>>> >> Can someone try merging >>>>>>> >> >>>>>>> SLICE-Issue-15646-Cleaning-method-category-api-should-be-protocol-part-1-StephaneDucasse.1 >>>>>>> >> >>>>>>> >> What I see at top of stack is two calls to >>>>>>> MCVersionMerger>>addVersion: >>>>>>> >> >>>>>>> >> MCVersionMerger>>addVersion: aVersion >>>>>>> >> records add: (MCMergeRecord version: aVersion). >>>>>>> >> aVersion dependencies >>>>>>> >> do: [:ea | | dep satisfied | >>>>>>> >> dep := ea resolve. >>>>>>> >> satisfied := (records anySatisfy: [:r | r version >>>>>>> = dep]). >>>>>>> >> satisfied ifFalse: [self addVersion: dep]] "<<< >>>>>>> race? " >>>>>>> >> displayingProgress: [ :ea| 'Searching dependency: ', >>>>>>> ea >>>>>>> >> package name] >>>>>>> >> "15646Note: variable /satisfied/ added for >>>>>>> reporting/debugging" >>>>>>> >> >>>>>>> >> One level down from where the error occurs the debugger shows... >>>>>>> >> >>>>>>> >> /aVersion/ --> a >>>>>>> >> >>>>>>> MCVersion(SLICE-Issue-15646-Cleaning-method-category-api-should-be-protocol-part-1-StephaneDucasse.1) >>>>>>> >> >>>>>>> >> /ea/ --> a MCVersionInfo(DebuggerActions-StephaneDucasse.75) >>>>>>> >> >>>>>>> >> /dep/ --> nil >>>>>>> >> >>>>>>> >> /satisfied/ --> false >>>>>>> >> >>>>>>> >> and the following which contradicts the value in /satisfied/ >>>>>>> >> >>>>>>> >> (records anySatisfy: [:r | r version = dep]) --> true. >>>>>>> >> >>>>>>> >> so there seems to be a race such that the ifFalse block is >>>>>>> improperly >>>>>>> >> executed, such that the recursive call on top of stack has... >>>>>>> >> >>>>>>> >> /aVersion/-->nil >>>>>>> >> >>>>>>> >> hence MNU receiver of "dependencies" is nil. >>>>>>> >> >>>>>>> >> cheers -ben >>>>>>> >> >>>>>>> >> >>>>>>> >> On Mon, Jun 1, 2015 at 10:36 AM, Ben Coman <btc(a)openinworld.com> >>>>>>> wrote: >>>>>>> >>> I tried, but it seems some packages are missing from the inbox. >>>>>>> >>> cheers -ben >>>>>>> >>> >>>>>>> >>> On Sun, May 31, 2015 at 2:19 PM, stepharo <stepharo(a)free.fr> >>>>>>> wrote: >>>>>>> >>>> Hi >>>>>>> >>>> >>>>>>> >>>> I continued to clean that classes have categories and method >>>>>>> protocols >>>>>>> >>>> because it was not finished. >>>>>>> >>>> This entry is just adding protocol in the classes that were >>>>>>> missing it, >>>>>>> >>>> adding comments, and fixing some local senders >>>>>>> >>>> It does not remove the category API but puts it in a >>>>>>> accessing-backward >>>>>>> >>>> protocol and in a second step I will fix all the senders I can >>>>>>> (ie not >>>>>>> >>>> Metacello for example). >>>>>>> >>>> Category is really overloaded and we get lost when trying to >>>>>>> understand >>>>>>> >>>> code. >>>>>>> >>>> I want to rename RBRule 'category' into 'kind' for this reason. >>>>>>> >>>> >>>>>>> >>>> Stef >>>>>>> >>>> >>>>>>> >> >>>>>>> > >>>>>>> > >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>> >>>> >>> >> >

June 4, 2015

New CogVMs available

by Eliot Miranda

... at http://www.mirandabanda.org/files/Cog/VM/VM.r3370 CogVM source as per VMMaker.oscog-eem.1339/r3370 Spur Cogit: Since the invariant is that the receiver is never forwarded, Spur must check for forwarding on block activation. A become between closure creation and closure evaluation can forward the receiver, and it must be unforwarded. Here we do so by checking for a forwarded receiver in the value[:] primitives. This is a major blow to block performance; e.g. the nfib block b := [:n| n <= 1 ifTrue: [1] ifFalse: [1 + (b value: n - 1) + (b value: n - 2)]]. slows down by 11%. So we can and will do better. We should scan for receiver usage in the JIT and optionally compile unforwarding code in the prolog depending on whether self is used or not. Fix Spur block performance now that we follow forwarded receivers in blocks; see VMMaker.oscog-eem.1334. Scan blocks for inst var usage, only unforwarding in the prologue of blocks that actually refer to inst vars. In a test Spur Squeak image only 12.5% of blocks do refer to inst vars. So this is definitely a win. Add a special purpose store check trampoline to store check the updated receiver. Make sure it's only called if the eceiuver is updated. Add state to CogBytecodeDescriptor, CogBlockStart and CogBlockMethod to track block inst var usage. Sista: Fix the bug where rcvrReg was nil in genEqualsEqualsnoBranch. Generic Cogit: Use the Tst-based generators for immediate and SmallInteger tests more widely to save a few more instructions. Fix the hack introduced in VMMaker.oscog-eem.1199 for Sista which merely stopped reclaiming closed PICs. In non-Sista VMs do the usual thing of decaying usage counts on PICs, as with methods, and reclaiming those least used. In Sista, retain PICs until the next cycle, identifying unused PICs as part of the compaction scan, reminiscent of tri-colour incremental GC. Move defaultCogCodeSize into the CogAbstractInstruction hierarchy so that e.g. CogARMCompiler can specify a larger default code zone. Newspeak Cogit: Fix assert-fails with absent receiver sends in Newspeak. Have the implicit and outer send lookup trampolines set the stacked receiver (when there is one) when setting the implciit receiver. Streamline send trampoline creation by refactoring trampoline name generation so that the two limits, NumSendTrampolines - 2 and numRegArgs are treated separately, and numArgsOrSendNumArgsReg: answers the relevant numArgs argument. This should clear up confusion between numRegArgs (which can be 0, 1 & 2) and NumSendTrampolines - 2, which is always 2. linux builds: Fix VERSION_TAG format to agree with existing convention. -- best, Eliot

June 4, 2015

Re: [Pharo-dev] how can we use Spotter to find reference to a class without scrolling down?

by Tudor Girba

Hi Stef, What you are proposing is interesting. The criteria for the current language is to be minimalistic and composable because it is supposed to work with any object, not just with code, and the speed should be as good as possible in all cases. At this point, # means filter the existing list by the category. You do not need #ref. It's enough #r. The nice thing about it is that it has clear semantics, is cheap and composable through diving. I think this is a useful operator that we should not remove. But, this does not mean that we cannot play with other operators. We played also with other predicates, but the problem is that they are slow, and we have limited bandwidth (we have only one process for all computations). All in all, it would be cool to have experiments in this direction. However, I would want to have simple semantics that can be explained easily. We already have a few simple actions and people still do not use them to their full potential. Cheers, Doru On Thu, Jun 4, 2015 at 9:35 PM, stepharo <stepharo(a)free.fr> wrote: > But why this is so complex? > Why I cannot have > > #ref Object? > > or something like that. > And why do we need #ref and not > #r > #m > #s > ? > we could have > #p > #c > > I'm a super user and I want super user tools :) > > Stef > > Le 3/6/15 01:20, Tudor Girba a Ã©crit : > > Hi, > > But, that is already possible: > - Search for a class, like Object. > - Dive in (Cmd+Right) > - Type #ref > > And you will get the list of references to Object. > > Cheers, > Doru > > > > > On Wed, Jun 3, 2015 at 1:17 AM, Ben Coman <btc(a)openinworld.com> wrote: > >> I guess he means... Analyse > Class refs >> and maybe wanting a syntax like... MyClass #ref >> cheers -ben >> >> On Wed, Jun 3, 2015 at 4:12 AM, Tudor Girba <tudor(a)tudorgirba.com> wrote: >> > Hi, >> > >> > If you know the name of the spotter category, you can use the #category, >> > like here: >> > >> http://www.humane-assessment.com/blog/scoping-for-specific-search-category-… >> > >> > Is this what you are looking for? >> > >> > Cheers, >> > Doru >> > >> > >> > >> > On Tue, Jun 2, 2015 at 10:08 PM, stepharo <stepharo(a)free.fr> wrote: >> >> >> >> Hi guys >> >> >> >> I often know that I want to look not for the class, its package or >> >> methods.... >> >> but that I want to get the references to a class. >> >> >> >> Is there a syntax that I can use to instruct spotter about my needs? >> >> >> >> Stef >> >> >> > >> > >> > >> > -- >> > www.tudorgirba.com >> > >> > "Every thing has its own flow" >> >> > > > -- > www.tudorgirba.com > > "Every thing has its own flow" > > > -- www.tudorgirba.com "Every thing has its own flow"

June 4, 2015

running the tests on my machine gives a full frozen stops and Critical failure: the LastResort font is unavailable.

by stepharo

015-06-04 21:47:19.836 Pharo[12527:507] Critical failure: the LastResort font is unavailable.

June 4, 2015