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

Null Coalesce Operator?
by Aliaksei Syrel May 21, 2015

May 21, 2015

Hi, Null coalesce operator - returns the first not nil operand. http://en.wikipedia.org/wiki/Null_coalescing_operator Adding one simple method to an Object: ?? anObject > ^ self and to UndefinedObject: ?? anObject > ^ anObject could allow us to write: > default1 := nil. > default2 := nil. > default3 := 'foo'. > default4 := 'don''t care'. > config := default1 ?? default2 ?? default3 ?? default4. => 'foo' I know you don't like to add new methods to an object, but still :)

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Versionner: New version from current package versions?
by Sean P. DeNigris May 21, 2015

May 21, 2015

Is there currently a way to say "create a new version of my project updating all packages to the current versions in the image"? It's pretty much like the cool new options Esteban introduced, but in the case where the underlying packages have already been saved. Thanks! ----- Cheers, Sean -- View this message in context: http://forum.world.st/Versionner-New-version-from-current-package-versions-… Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

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MongoTalk UpdateOperation and options. How to?
by phil＠highoctane.be May 21, 2015

May 21, 2015

In MongoTalk, there is UpdateOperation. But I can't find how one can do an update with options. http://docs.mongodb.org/manual/reference/method/db.collection.update/ I see Mongo>>update: origDictionary with: newDictionary collection: aString (UpdateOperation collection: aString id: self nextRequestID stream: stream originalObject: origDictionary newObject: newDictionary) write But there is no room for "options" I tried to do it with commands but wasn't able to figure out how. In MongoShell, db.runCommand({ "update":"Message", "query":{}, "updates": [{"$set": {"READ":true} }], "options": {"multi":true} }) gives me "missing q parameter" Anyone knowing how to do this? I've also done this code: | query what | query := { } asDictionary. what := { 'READ' -> true } asDictionary. Mapless currentRepository database beLogging. (Mapless currentRepository collection: Message) "<<- basically one gets a Mongoclient doing the updata:with:" update: query with: {'$set' -> what } asDictionary. Thanks for any help :-) Phil

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[pharo-project/pharo-core]
by GitHub May 21, 2015

May 21, 2015

Branch: refs/tags/50056 Home: https://github.com/pharo-project/pharo-core

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[pharo-project/pharo-core] 3e3d7f: 50056
by GitHub May 21, 2015

May 21, 2015

Branch: refs/heads/5.0 Home: https://github.com/pharo-project/pharo-core Commit: 3e3d7fa78522f003b843e1955f578e9e17f748bb https://github.com/pharo-project/pharo-core/commit/3e3d7fa78522f003b843e195… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2015-05-21 (Thu, 21 May 2015) Changed paths: M Kernel.package/Class.class/instance/subclass creation/subclass_instanceVariableNames_classVariableNames_poolDictionaries_category_.st M Manifest-CriticBrowser.package/SingleCodeCriticResultList.class/instance/initialization/setTextModelForTransformationRule_.st M OpalCompiler-Core.package/OCASTTranslator.class/instance/visitor/visitNode_.st M Reflectivity-Tests.package/MetaLinkTest.class/instance/tests - hooks/testHaltHook.st A Reflectivity.package/Breakpoint.class/instance/api/break_withArguments_.st R Reflectivity.package/Breakpoint.class/instance/as yet unclassified/break_withArguments_.st A Reflectivity.package/HookGenerator.class/README.md A Reflectivity.package/HookGenerator.class/definition.st A Reflectivity.package/HookGenerator.class/instance/accessing/link.st A Reflectivity.package/HookGenerator.class/instance/accessing/link_.st A Reflectivity.package/HookGenerator.class/instance/ast manipulation/encloseInBlock_.st A Reflectivity.package/HookGenerator.class/instance/ast manipulation/selectorForNode.st A Reflectivity.package/HookGenerator.class/instance/ast manipulation/wrapCondition_.st A Reflectivity.package/HookGenerator.class/instance/ast manipulation/wrapInContext_.st A Reflectivity.package/HookGenerator.class/instance/initialize/initForNode_.st A Reflectivity.package/HookGenerator.class/instance/initialize/setupTable.st A Reflectivity.package/HookGenerator.class/instance/result/hook.st R Reflectivity.package/MetaLink.class/instance/ast/encloseInBlock_.st R Reflectivity.package/MetaLink.class/instance/ast/hook.st A Reflectivity.package/MetaLink.class/instance/ast/hookOn_.st M Reflectivity.package/MetaLink.class/instance/ast/valueInContext_.st R Reflectivity.package/MetaLink.class/instance/ast/wrapCondition_.st R Reflectivity.package/MetaLink.class/instance/ast/wrapInContext_.st A Reflectivity.package/RFReification.class/class/as yet unclassified/node_link_.st A Reflectivity.package/RFReification.class/instance/acccessing/link_.st A Reflectivity.package/RFReification.class/instance/accesing/node_.st R ScriptLoader50.package/ScriptLoader.class/instance/pharo - scripts/script50055.st A ScriptLoader50.package/ScriptLoader.class/instance/pharo - scripts/script50056.st R ScriptLoader50.package/ScriptLoader.class/instance/pharo - updates/update50055.st A ScriptLoader50.package/ScriptLoader.class/instance/pharo - updates/update50056.st M ScriptLoader50.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st R Slot.package/OldClassBuilderAdapter.class/instance/adapted api/superclass_subclass_instanceVariableNames_classVariableNames_poolDictionaries_category_.st R Slot.package/OldClassBuilderAdapter.class/instance/adapted api/superclass_variableSubclass_instanceVariableNames_classVariableNames_poolDictionaries_category_.st M Traits.package/TClass.class/instance/subclass creation/variableSubclass_instanceVariableNames_classVariableNames_poolDictionaries_category_.st Log Message: ----------- 50056 15579 Clean up OldClassBuilderAdpater more https://pharo.fogbugz.com/f/cases/15579 15574 Critics: Ignore whitespace changes when diffing transformations https://pharo.fogbugz.com/f/cases/15574 15580 Move hook generation to HookGenerator class https://pharo.fogbugz.com/f/cases/15580 http://files.pharo.org/image/50/50056.zip

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about the donwload win.zip pharo 40
by stepharo May 21, 2015

May 21, 2015

Hi one student of saint-louis tried to download pharo from the pharo web site and on windows the archive seems broken. Could someone try and let me know? Tx. Stef

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Critics Browser should diff formatted original
by Sean P. DeNigris May 21, 2015

May 21, 2015

It's difficult to see what the actual changes are when the formatter makes significant whitespace changes. How about we diff the original source /re-formatted/ against the transformed source? ----- Cheers, Sean -- View this message in context: http://forum.world.st/Critics-Browser-should-diff-formatted-original-tp4827… Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com.

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Code generation for ASTs with syntax errors
by Marcus Denker May 21, 2015

May 21, 2015

We can parse code with syntax errors: it generates partial ASTs with the faulty part of the input as a RBParseErrorNode. Only three methods are needed to allow generating executable methods from such an AST: the SyntaxErrorNotification is raised at runtime instead of compile time. testEvalSimpleMethodWithError | ast cm | ast := OpalCompiler new source: 'method 3+'; useFaultyForParsing: true; parse. self assert: ast isMethod. self assert: ast isFaulty. cm := ast compiledMethod. self should: [cm valueWithReceiver: nil arguments: #()] raise: SyntaxErrorNotification The syntax error instance is compiled in via a literal variable, in the end the only thing needed was: visitParseErrorNode: anErrorNode methodBuilder pushLiteralVariable: #error -> anErrorNode asSyntaxErrorNotification; send: #signal. This is in #50044. Future work: introduce a RuntimeSyntaxError that can be turned off per error and globally. Marcus

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Re: [Pharo-dev] New Collections for Pharo
by HernÃ¡n Morales Durand May 20, 2015

May 20, 2015

Hello Alexander, For the MultiValueDictionary IMHO you can need to use other Collections beside OrderedCollection, so you can replace #asOrderedCollection with #asSortedCollection, etc adding an inst. var. storing the converting selector could result in a more flexible Collection. I know at least 2 other BTree Smalltalk implementations out there, one fron Avi Bryant and another one here http://www.virtualmachinery.com/btreestqstart.htm . Have you reviewed them? On the other hand, do you have some examples or empirical benchmarks to share? Cheers, HernÃ¡n 2015-05-20 2:12 GMT-03:00 ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ ÐÑÐµÐ½ÑÐµÐ² <pharo-dev(a)lists.pharo.org>: > > > ---------- Mensaje reenviado ---------- > From: "ÐÐ»ÐµÐºÑÐ°Ð½Ð´Ñ ÐÑÐµÐ½ÑÐµÐ²" <alexzund3r(a)yahoo.com> > To: Pharo Development List <pharo-dev(a)lists.pharo.org> > Cc: > Date: Wed, 20 May 2015 05:12:29 +0000 (UTC) > Subject: New Collections for Pharo > Greetings to everyone. As you remember, i was working at some new > collections for Pharo Smalltalk. Today i want to share some results with > the community. There are three collections currently implemented: > > 1. MultiValueDictionary - a dictionary which holda a pairs of "Key -> > (Val1. Val2 ..)" > 2. CircularLinkedList - a linked list which have additional pointer > from its tail to head > 3. Btree (do not forget to set the degree by sending the "degree:" > message before start working. Also removing keys doesn't work correctly in > some cases) > > Comments, suggestions and critics are very appreciatied, because you are > my target audience. > Collections are availiable for download on my project page: SmalltalkHub > <http://smalltalkhub.com/#!/~OBrenchev/NewPharoCollections> > > > > > > > SmalltalkHub <http://smalltalkhub.com/#!/~OBrenchev/NewPharoCollections> > Loading. Please wait. > ÐÑÐ¾ÑÐ¼Ð¾ÑÑÐµÑÑ Ð½Ð° smalltalkhub.com > <http://smalltalkhub.com/#!/~OBrenchev/NewPharoCollections> > ÐÑÐµÐ´Ð²Ð°ÑÐ¸ÑÐµÐ»ÑÐ½ÑÐ¹ Ð¿ÑÐ¾ÑÐ¼Ð¾ÑÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Yahoo > > (NewCollections,NewCollectionsTest and NewCollectionsSupport packages > you need) > > Best wishes > Alexander > > >

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FileSystem not deleting symlinks
by Damien Cassou May 20, 2015

May 20, 2015

The FileSystem library uses DeleteVisitor and PostorderGuide (depth-first) to delete a directory and all its children. All its children? No. Symlinks are protected from deletion: DeleteVisitor>>visit: aReference PostorderGuide show: aReference to: self selecting: [ :entry | entry isSymlink not ] I didn't find any unit-test or documentation about why symlinks are excluded from deletion. I don't see any reason. I'm quite sure the author had a reason to do that but I don't know which one. Anybody has an idea? -- Damien Cassou http://damiencassou.seasidehosting.st "Success is the ability to go from one failure to another without losing enthusiasm." --Winston Churchill

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