Squeak-dev May 2013

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334 discussions

The Trunk: System-nice.539.mcz
by commits＠source.squeak.org 31 May '13

31 May '13

Nicolas Cellier uploaded a new version of System to project The Trunk: http://source.squeak.org/trunk/System-nice.539.mcz ==================== Summary ==================== Name: System-nice.539 Author: nice Time: 31 May 2013, 12:54:45.518 am UUID: 54f88b1d-e023-472f-924e-cec4ca5fb3d8 Ancestors: System-fbs.538 Now that .mcz/snapshot/source.st are encoded in UTF8, Let MczInstaller decode UTF8. Previously, snapshot/source.st was encoded in latin-1 (iso-8859-L1) for ByteString and UTF-32BE for WideString. And would always be decoded in MacRoman by MczInstaller (or UTF-8 if there were a BOM, but there weren't) Note that .mcz do not use a BOM for compatibility with legacy code. Thus compatibility is handled by catching InvalidUTF8 exception. The rationale is that previous interpretation of snapshot/source.st was completely broken and presumably not used. So adding a bit of complexity with a BOM compatibility is not really worth. =============== Diff against System-fbs.538 =============== Item was changed: ----- Method: MczInstaller>>installMember: (in category 'installation') ----- installMember: member self useNewChangeSetDuring: + [ | str | + str := member contentStream text readStream contents. + str := [str utf8ToSqueak] on: InvalidUTF8 do: [:exc | + "Case of legacy encoding, presumably it is latin-1 and we do not need to do anything + But if contents starts with a null character, it might be a case of WideString encoded in UTF-32BE" + exc return: (((str beginsWith: Character null asString) and: [ str size \\ 4 = 0 ]) + ifTrue: [WideString fromByteArray: str asByteArray] + ifFalse: [str])]. + str readStream fileInAnnouncing: 'loading ', member fileName ]! - [ | str |str := member contentStream text. - str setConverterForCode. - str fileInAnnouncing: 'loading ', member fileName]!

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The Trunk: Monticello-nice.546.mcz
by commits＠source.squeak.org 31 May '13

31 May '13

Nicolas Cellier uploaded a new version of Monticello to project The Trunk: http://source.squeak.org/trunk/Monticello-nice.546.mcz ==================== Summary ==================== Name: Monticello-nice.546 Author: nice Time: 31 May 2013, 12:47:59.453 am UUID: ff2975ee-c296-4d65-8b8a-9b512607a2be Ancestors: Monticello-kb.545 Let's encode .mcz/snapshot/source.st in UTF8 Let's decode UTF8 in MCStReader. Previously, it was encoded in latin-1 (iso-8859-L1) for ByteString and UTF-32BE for WideString. And would always be decoded in latin-1 by MCStReader. Note that compatibility with legacy code is handled by catching InvalidUTF8 exception. An alternative would be to use a BOM in new snapshot. However, since the snapshot/source.st is not used by Squeak tools, it's not really worth. =============== Diff against Monticello-kb.545 =============== Item was changed: ----- Method: MCMczWriter>>serializeDefinitions: (in category 'serializing') ----- serializeDefinitions: aCollection + ^(String streamContents: [:aStream | + | writer | + writer := self snapshotWriterClass on: aStream. + writer writeDefinitions: aCollection]) + squeakToUtf8! - | writer s | - s := RWBinaryOrTextStream on: String new. - writer := self snapshotWriterClass on: s. - writer writeDefinitions: aCollection. - ^ s contents! Item was changed: ----- Method: MCStReader>>readStream (in category 'evaluating') ----- readStream + | contents | + contents := stream contents. + contents := [contents utf8ToSqueak] on: InvalidUTF8 do: [:exc | + "Case of legacy encoding, presumably it is latin-1 and we do not need to do anything + But if contents starts with a null character, it might be a case of WideString encoded in UTF-32BE" + exc return: (((contents beginsWith: Character null asString) and: [ contents size \\ 4 = 0 ]) + ifTrue: [WideString fromByteArray: contents asByteArray] + ifFalse: [contents])]. ^ ('!!!! + ', contents) readStream! - ', stream contents) readStream!

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The Trunk: CollectionsTests-nice.204.mcz
by commits＠source.squeak.org 31 May '13

31 May '13

Nicolas Cellier uploaded a new version of CollectionsTests to project The Trunk: http://source.squeak.org/trunk/CollectionsTests-nice.204.mcz ==================== Summary ==================== Name: CollectionsTests-nice.204 Author: nice Time: 31 May 2013, 12:25:28.929 am UUID: 671234fb-c454-4951-8b74-7ffff3a8a5bb Ancestors: CollectionsTests-fbs.203 Don't let Character null fail =============== Diff against CollectionsTests-fbs.203 =============== Item was changed: ----- Method: CharacterTest>>testPrintString (in category 'testing-printing') ----- testPrintString self assert: $a printString = '$a'. self assert: $5 printString = '$5'. self assert: $@ printString = '$@'. self assert: Character cr printString = 'Character cr'. self assert: Character lf printString = 'Character lf'. self assert: Character space printString = 'Character space'. + self assert: Character null printString = 'Character null'. - self assert: (Character value: 0) printString = 'Character value: 0'. self assert: (Character value: 17) printString = 'Character value: 17'.! Item was changed: ----- Method: CharacterTest>>testStoreString (in category 'testing-printing') ----- testStoreString self assert: $a storeString = '$a'. self assert: $5 storeString = '$5'. self assert: $@ storeString = '$@'. self assert: Character cr storeString = 'Character cr'. self assert: Character lf storeString = 'Character lf'. self assert: Character space storeString = 'Character space'. + self assert: Character null storeString = 'Character null'. - self assert: (Character value: 0) storeString = '(Character value: 0)'. self assert: (Character value: 17) storeString = '(Character value: 17)'.!

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The Trunk: Collections-nice.520.mcz
by commits＠source.squeak.org 31 May '13

31 May '13

Nicolas Cellier uploaded a new version of Collections to project The Trunk: http://source.squeak.org/trunk/Collections-nice.520.mcz ==================== Summary ==================== Name: Collections-nice.520 Author: nice Time: 31 May 2013, 12:23:43.567 am UUID: 6ef25398-faee-45ff-a409-52d3f36d98c8 Ancestors: Collections-fbs.519 Introduce Character null =============== Diff against Collections-fbs.519 =============== Item was changed: ----- Method: Character class>>constantNames (in category 'private') ----- constantNames + ^ #( backspace cr delete escape lf null newPage space tab ).! - ^ #( backspace cr delete escape lf newPage space tab ).! Item was added: + ----- Method: Character class>>null (in category 'accessing untypeable characters') ----- + null + ^ self value: 0! Item was changed: ----- Method: NullStream>>element (in category 'accessing') ----- element "The element returned by the stream" + ^binary ifTrue:[0] ifFalse:[Character null]! - ^binary ifTrue:[0] ifFalse:[Character value: 0]! Item was changed: ----- Method: String>>compressWithTable: (in category 'converting') ----- compressWithTable: tokens "Return a string with all substrings that occur in tokens replaced by a character with ascii code = 127 + token index. This will work best if tokens are sorted by size. Assumes this string contains no characters > 127, or that they are intentionally there and will not interfere with this process." | str null finalSize result ri c | + null := Character null. - null := Character value: 0. str := self copyFrom: 1 to: self size. "Working string will get altered" finalSize := str size. tokens doWithIndex: [:token :tIndex | | start ts | start := 1. [(start := str findString: token startingAt: start) > 0] whileTrue: [ts := token size. ((start + ts) <= str size and: [(str at: start + ts) = $ and: [tIndex*2 <= 128]]) ifTrue: [ts := token size + 1. "include training blank" str at: start put: (Character value: tIndex*2 + 127)] ifFalse: [str at: start put: (Character value: tIndex + 127)]. str at: start put: (Character value: tIndex + 127). 1 to: ts-1 do: [:i | str at: start+i put: null]. finalSize := finalSize - (ts - 1). start := start + ts]]. result := String new: finalSize. ri := 0. 1 to: str size do: [:i | (c := str at: i) = null ifFalse: [result at: (ri := ri+1) put: c]]. ^ result!

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The Trunk: KernelTests-fbs.252.mcz
by commits＠source.squeak.org 31 May '13

31 May '13

Frank Shearar uploaded a new version of KernelTests to project The Trunk: http://source.squeak.org/trunk/KernelTests-fbs.252.mcz ==================== Summary ==================== Name: KernelTests-fbs.252 Author: fbs Time: 30 May 2013, 11:08:47.493 pm UUID: 8b9b74b0-07df-4001-a33a-046e1f0e348e Ancestors: KernelTests-fbs.251 Turn Promise into a fully chainable object with decent error handling. (This implements the Smalltalk equivalent of JavaScript's Promises/A+ specification.) =============== Diff against KernelTests-fbs.251 =============== Item was added: + Object subclass: #NullMutex + instanceVariableNames: 'semaphore owner' + classVariableNames: '' + poolDictionaries: '' + category: 'KernelTests-Processes'! + + !NullMutex commentStamp: 'fbs 5/17/2013 20:30' prior: 0! + A Mutex is a light-weight MUTual EXclusion object being used when two or more processes need to access a shared resource concurrently. A Mutex grants ownership to a single process and will suspend any other process trying to aquire the mutex while in use. Waiting processes are granted access to the mutex in the order the access was requested. + + This Mutex DOES NOT mutually exclude anything. It just implements the same protocol.! Item was added: + ----- Method: NullMutex>>critical: (in category 'mutual exclusion') ----- + critical: aBlock + ^ aBlock value.! Item was added: + ----- Method: Promise>>unsynchronized (in category '*KernelTests-Processes') ----- + unsynchronized + "This is useful for tests, because it's quite easy otherwise to deadlock your image. It is a DISASTER to use this in production code!!" + mutex := NullMutex new.! Item was added: + ----- Method: PromiseTest>>testAnErrorInThenRejectsPromise (in category 'testing - monad') ----- + testAnErrorInThenRejectsPromise + | p q | + p := Promise new. + q := p then: [:v | KeyNotFound signal]. + p resolveWith: 1. + self deny: p isRejected description: 'Original Promise rejected'. + self assert: q isRejected description: 'Broken Promise not rejected'.! Item was added: + ----- Method: PromiseTest>>testCanRejectPromise (in category 'testing - monad') ----- + testCanRejectPromise + | p | + p := Promise new. + p rejectWith: Error new.! Item was added: + ----- Method: PromiseTest>>testCannotRejectFulfilledPromise (in category 'testing - monad') ----- + testCannotRejectFulfilledPromise + | p | + p := Promise unit: 1. + self should: [p rejectWith: Error new] raise: Error.! Item was added: + ----- Method: PromiseTest>>testCannotResolveaRejectedPromise (in category 'testing - monad') ----- + testCannotResolveaRejectedPromise + | p | + p := Promise new. + p rejectWith: Error new. + self should: [p resolveWith: 1] raise: Error.! Item was added: + ----- Method: PromiseTest>>testRejectWithInvokesErrorHandlers (in category 'testing - monad') ----- + testRejectWithInvokesErrorHandlers + | p error returnedError | + returnedError := nil. + error := KeyNotFound new. + p := Promise ifRejected: [:e | returnedError := e]. + p rejectWith: error. + self assert: returnedError notNil description: 'Error block did not run.'. + self assert: error equals: returnedError description: 'Error not passed into block'. + self assert: error equals: p error description: 'Promise didn''t store error'.! Item was changed: ----- Method: PromiseTest>>testSingleResolver (in category 'testing') ----- testSingleResolver | promise sum | sum := 0. promise := Promise new. promise whenResolved: [:val | sum := sum + val]. promise resolveWith: 5. + self assert: 5 equals: sum. - self should: [sum = 5]. ! Item was added: + ----- Method: PromiseTest>>testThenPermitsChainingOfPromises (in category 'testing - monad') ----- + testThenPermitsChainingOfPromises + | p q r | + p := Promise new. + q := p then: [:v | v * 2]. + r := q then: [:v | v + 1]. + p resolveWith: 4. + self assert: 4 * 2 equals: q value. + self assert: (4 * 2 + 1) equals: r value.! Item was added: + ----- Method: PromiseTest>>testThenReturnsaPromise (in category 'testing - monad') ----- + testThenReturnsaPromise + | p | + p := Promise new then: [:v | v * 2]. + self assert: Promise equals: p class.! Item was added: + ----- Method: PromiseTest>>testUnitReturnsaPromise (in category 'testing - monad') ----- + testUnitReturnsaPromise + | p | + p := Promise unit: 1. + self assert: Promise equals: p class. + self assert: p isResolved.! Item was added: + ----- Method: PromiseTest>>testifRejectedDoesNotRunBlockIfPromiseResolves (in category 'testing - monad') ----- + testifRejectedDoesNotRunBlockIfPromiseResolves + | p q error | + error := nil. + p := Promise new. + q := p ifRejected: [:e | error := e]. + p resolveWith: 1. + self deny: q isRejected. + self assert: nil equals: error.! Item was added: + ----- Method: PromiseTest>>testifRejectedRunsBlockIfPromiseFails (in category 'testing - monad') ----- + testifRejectedRunsBlockIfPromiseFails + | p q error | + error := nil. + p := Promise new. + q := p ifRejected: [:e | error := e]. + p rejectWith: KeyNotFound new. + self assert: q isRejected. + self assert: KeyNotFound equals: error class.!

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The Trunk: Kernel-fbs.762.mcz
by commits＠source.squeak.org 31 May '13

31 May '13

Frank Shearar uploaded a new version of Kernel to project The Trunk: http://source.squeak.org/trunk/Kernel-fbs.762.mcz ==================== Summary ==================== Name: Kernel-fbs.762 Author: fbs Time: 30 May 2013, 11:07:50.674 pm UUID: 189ac08f-d45b-40f8-b7cd-e183ae46f3bf Ancestors: Kernel-fbs.761 Turn Promise into a fully chainable object with decent error handling. (This implements the Smalltalk equivalent of JavaScript's Promises/A+ specification.) =============== Diff against Kernel-fbs.761 =============== Item was changed: Object subclass: #Promise + instanceVariableNames: 'onError value resolvers mutex state error rejectors rejecters' - instanceVariableNames: 'isResolved value resolvers mutex' classVariableNames: '' poolDictionaries: '' category: 'Kernel-Processes'! + !Promise commentStamp: 'fbs 5/17/2013 18:23' prior: 0! - !Promise commentStamp: 'jcg 12/17/2009 02:22' prior: 0! I represent the result of an asynchronous message. Once the message is processed, I will be resolved to a value. I am typically instantiated by invocations of #futureSend:at:args: (and not by #futureDo:atArgs:). + See class-comment of FutureNode. + + I also implement the Promises/A+ Javascript specification. This allows you to chain my instances to perform arbitrarily complex asynchronous tasks with error handling baked in. + + A Promise may be in one of three possible states: #pending, #fulfilled or #rejected. A Promise may move from #pending -> #fulfilled, or from #pending -> #rejected. No other state changes may occur. Once #fulfilled or #rejected, a Promise's value must change.! - See class-comment of FutureNode.! Item was added: + ----- Method: Promise class>>ifRejected: (in category 'instance creation') ----- + ifRejected: aBlock + ^ Promise basicNew initializeWithIfRejected: aBlock.! Item was added: + ----- Method: Promise class>>unit: (in category 'instance creation') ----- + unit: anObject + "Return a resolved Promise. #new is the other half of Promise's unit function; #new returns an unresolved Promise." + ^ Promise basicNew initializeWithResolvedValue: anObject.! Item was added: + ----- Method: Promise>>error (in category 'accessing') ----- + error + ^ error.! Item was added: + ----- Method: Promise>>evaluateRejecter: (in category 'private') ----- + evaluateRejecter: rejecterBlock + ^ rejecterBlock cull: error.! Item was changed: ----- Method: Promise>>evaluateResolver: (in category 'private') ----- evaluateResolver: resolverBlock + ^ resolverBlock cull: value.! - resolverBlock cull: value.! Item was added: + ----- Method: Promise>>ifRejected: (in category 'monad') ----- + ifRejected: errBlock + ^ self then: [:ignored | "Do nothing"] ifRejected: errBlock.! Item was changed: ----- Method: Promise>>initialize (in category 'initialize') ----- initialize + state := #pending. - isResolved := false. resolvers := #(). + rejecters := #(). mutex := Mutex new.! Item was added: + ----- Method: Promise>>initializeWithIfRejected: (in category 'initialize') ----- + initializeWithIfRejected: aBlock + self initialize. + rejecters := {aBlock}.! Item was added: + ----- Method: Promise>>initializeWithResolvedValue: (in category 'initialize') ----- + initializeWithResolvedValue: anObject + self initialize. + self resolveWith: anObject.! Item was added: + ----- Method: Promise>>isPromise (in category 'testing') ----- + isPromise + ^ true.! Item was added: + ----- Method: Promise>>isRejected (in category 'testing') ----- + isRejected + ^ state == #rejected.! Item was changed: ----- Method: Promise>>isResolved (in category 'testing') ----- isResolved + ^ state == #fulfilled.! - ^isResolved! Item was added: + ----- Method: Promise>>printOn: (in category 'printing') ----- + printOn: aStream + aStream nextPutAll: 'a Promise'. + self isResolved ifTrue: [ + aStream + nextPutAll: '(resolved: '; + nextPutAll: value printString; + nextPutAll: ')']. + self isRejected ifTrue: [ + aStream + nextPutAll: '(rejected: '; + nextPutAll: error printString; + nextPutAll: ')'].! Item was added: + ----- Method: Promise>>rejectWith: (in category 'resolving') ----- + rejectWith: anObject + "Reject this promise." + mutex critical: [ + (state == #fulfilled) ifTrue: [self error: 'Promise was already resolved']. + (state == #rejected) ifTrue: [self error: 'Promise was already rejected']. + error := anObject. + state := #rejected. + rejecters do: [:r | self evaluateRejecter: r]].! Item was changed: ----- Method: Promise>>resolveWith: (in category 'resolving') ----- resolveWith: arg "Resolve this promise" mutex critical: [ + (state == #fulfilled) ifTrue: [self error: 'Promise was already resolved']. + (state == #rejected) ifTrue: [self error: 'Promise was already resolved']. - isResolved ifTrue: [self error: 'Promise was already resolved']. value := arg. + state := #fulfilled. + resolvers do: [:r | + self evaluateResolver: r]].! - isResolved := true. - resolvers do: [:r | self evaluateResolver: r]. - ].! Item was added: + ----- Method: Promise>>then: (in category 'monad') ----- + then: resolvedBlock + ^ self then: resolvedBlock ifRejected: [:ignored | "Do nothing"].! Item was added: + ----- Method: Promise>>then:ifRejected: (in category 'monad') ----- + then: resolvedBlock ifRejected: errBlock + "Return a Promise that, if it resolves, runs the resolvedBlock. If resolution throws an Exception, it runs the errBlock." + | p | + p := Promise new. + self whenResolved: [:v | + [p resolveWith: (resolvedBlock value: v)] + on: Error do: [:e | p rejectWith: e]]. + self whenRejected: [:e | p rejectWith: (errBlock value: e)]. + ^ p.! Item was changed: ----- Method: Promise>>waitTimeoutMSecs: (in category 'waiting') ----- waitTimeoutMSecs: msecs "Wait for at most the given number of milliseconds for this promise to resolve. Answer true if it is resolved, false otherwise." | sema delay | sema := Semaphore new. self whenResolved: [sema signal]. delay := Delay timeoutSemaphore: sema afterMSecs: msecs. [sema wait] ensure: [delay unschedule]. + ^ self isResolved.! - ^isResolved! Item was added: + ----- Method: Promise>>whenRejected: (in category 'resolving') ----- + whenRejected: aBlock + "Evaluate aBlock when I am rejected" + aBlock numArgs <= 1 ifFalse: [self error: 'Must be 0- or 1-argument block']. + ^ mutex critical: [ + rejecters := rejecters copyWith: aBlock. + self isRejected ifTrue:[self evaluateRejecter: aBlock]. + ]! Item was changed: ----- Method: Promise>>whenResolved: (in category 'resolving') ----- whenResolved: aBlock "Evaluate aBlock when I am resolved" aBlock numArgs <= 1 ifFalse:[self error: 'Must be 0- or 1-argument block']. + ^ mutex critical: [ - mutex critical: [ resolvers := resolvers copyWith: aBlock. self isResolved ifTrue:[self evaluateResolver: aBlock]. ]!

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minutes, servers, restarts, and websites
by Chris Cunnington 30 May '13

30 May '13

The SOB has not posted minutes on its blog for three months. Even for Squeak that is too much. Craig, that is your failure. Squeak took possession of two new servers from the Software Freedom Conservancy: box3; and, box4, which is unused. The community pays 27 (?) Euro a month for box2, which is obsolete and cannot run Cog. box2 has gone down twice in the past ten weeks. It takes me sixty seconds to log in and restart it, but even still. It would be good to move to box4. That means Ken Causey has to prep it. He has taken all the keys into his hands for that, so it's up to him. Or not. Nothing has happened since last year. The era of the Aida homepage should come to an end. If you want the technical details [5]. I created a prototype with Altitude that was well received and the community could proceed from there. There's no point in putting it on box2, so this would have to wait for box4. If the community wants a new, updated Aida homepage, I'm all for it. But I'm also not the person for that job. The only person who tried harder solving this problem than me was Herbert Konig. He gave it a real shot last year. I suppose this conversation should be on the webteam list, but I'm not a member, can't add myself, and Janko takes forever adding people. I believe Colin's still waiting. Everything I just said is a fact. Chris [1] Installer ss project: 'SPort'; install: 'Sport'. Installer ss project: 'Swazoo'; install: 'Swazoo'. Installer ss project: 'Aida'; install: 'Aida6.1'. SwazooAida demoStart [2] http://www.squeaksource.com/Scribo [3] http://www.osrcon.ca/SqueakSite-janko.18.mcz [4] http://ftp.eranova.si/aida/Aida6.5Pharo1.4summer-4jan13.zip [5] I just spent hours trying to make some semblance of Aida, Scribo, Swazoo, SPort, and SqueakSite-janko.18.mcz work. Of course, I cannot get any of these things from http://mc.aidaweb.si, because its down and I think has been for some time. I logged into box2, locate'd a copy from a backup, found SqueakSite-janko.18.mcz, copied it to my directory, and then to my desktop. I created some installer scripts from SqueakSource [1]. Then you can go to the Scribo repo on SqueakSource [2]. Then try loading in SqueakSite-janko.18.mcz [3]. It's an odd experience. I mean, even if you manage to calibrate a version of Scribo into a Squeak with a version of Aida, the links to the Scribo plugin examples go nowhere. Nothing. I feel trying to put these pieces together is in vain. They don't fit. Janko suggested several months that we should pickup with the plan of June 2012 and proceed to update SqueakSite in an updated version of Squeak. OK, sounds good on paper. But it has been a year with no progress at all. None. And the kicker for me is that if you download his all-in-zip [4] and wait half an hour for all 100 M download, it unpacks to 300+ M, you click on it, and it ask you for the virtual machine. Hmmm...aren't you the all-in-one? The aida.image alone is 200 M. I mean I figured that it must work with Pharo...right? Right? Nope.

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Daily Commit Log
by commits＠source.squeak.org 30 May '13

30 May '13

Changes to Trunk (http://source.squeak.org/trunk.html) in the last 24 hours: http://lists.squeakfoundation.org/pipermail/packages/2013-May/005992.html Name: Kernel-fbs.761 Ancestors: Kernel-cmm.760 Signal a proper error for a missing Trait requirement, so the Debugger can catch it. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2013-May/005993.html Name: Tools-fbs.467 Ancestors: Tools-cmm.466 Apply "JIT development" to implementing a Trait application. =============================================

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TraitOrganizer seems oddly empty
by Frank Shearar 29 May '13

29 May '13

I'm playing around with traits, making a field (the abstract algebra kind) by glomming together two groups. A TGroup defines #*, #identity and #inverse. Obviously one has to resolve name clashes, and a TraitAlias is just the thing: Trait named: #TField uses: TGroup @ {#identity->#zero. #* -> #+. #inverse->#negated} + TGroup @ {#identity->#one. #inverse->#reciprocal} category: 'Group-Theory'. Great. Except that I'd expected to see stubs for the aliased methods, like negated self requirement. (I'd also expect, if one altered the alias, to see the stub vanish and be replaced by a stub on the new name.) Because of the lack of stubs, TField organization allMethodSelectors is much emptier than I'd like. Am I being unreasonable? frank

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Squeak's presence on GitHub
by Frank Shearar 29 May '13

29 May '13

As usual Camillo Bruni is several steps ahead of me. Pharo 3.0 mirrors its source code to GitHub nowadays. In particular, "my" use of github for the build scripts is really "our" use of github for the build scripts, so we should have our own Organization on GitHub. The user/organisation name "squeak" is already taken, so I'm proposing we/I register an organisation called "squeak-project". Any strenuous objections? frank

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