Packages January 2019

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The Trunk: System-tonyg.1054.mcz
by commits＠source.squeak.org 30 Jan '19

30 Jan '19

Tony Garnock-Jones uploaded a new version of System to project The Trunk: http://source.squeak.org/trunk/System-tonyg.1054.mcz ==================== Summary ==================== Name: System-tonyg.1054 Author: tonyg Time: 30 January 2019, 5:22:17.31393 pm UUID: 5089201f-7cb8-47e9-9426-f23c1e92c977 Ancestors: System-mt.1053 Improve promise resolution error handling via #fulfillWith:. =============== Diff against System-mt.1053 =============== Item was changed: ----- Method: Project>>future:send:at:args: (in category 'futures') ----- future: receiver send: aSelector at: deltaMSecs args: args "Send a message deltaSeconds into the future. Answers a Promise that will be resolved at some time in the future." | pr closure | pr := Promise new. + closure := [pr fulfillWith: [receiver perform: aSelector withArguments: args]]. - closure := [pr resolveWith: (receiver perform: aSelector withArguments: args)]. deltaMSecs = 0 ifTrue: [self addDeferredUIMessage: closure] ifFalse: [ [ (Delay forMilliseconds: deltaMSecs) wait. self addDeferredUIMessage: closure ] forkAt: Processor userSchedulingPriority + 1. ]. ^pr !

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The Trunk: Morphic-tonyg.1477.mcz
by commits＠source.squeak.org 30 Jan '19

30 Jan '19

Tony Garnock-Jones uploaded a new version of Morphic to project The Trunk: http://source.squeak.org/trunk/Morphic-tonyg.1477.mcz ==================== Summary ==================== Name: Morphic-tonyg.1477 Author: tonyg Time: 30 January 2019, 5:21:25.536199 pm UUID: 77d63568-e43f-4a3d-8930-4849ab7edd7d Ancestors: Morphic-pre.1476 Improve promise resolution error handling via #fulfillWith:. =============== Diff against Morphic-pre.1476 =============== Item was changed: ----- Method: MorphicProject>>future:send:at:args: (in category 'futures') ----- future: receiver send: aSelector at: deltaMSecs args: args "Send a message deltaSeconds into the future. Answers a Promise that will be resolved at some time in the future." | pr closure | pr := Promise new. + closure := [pr fulfillWith: [receiver perform: aSelector withArguments: args]]. - closure := [pr resolveWith: (receiver perform: aSelector withArguments: args)]. deltaMSecs = 0 ifTrue: [self addDeferredUIMessage: closure] ifFalse: [ world addAlarm: #addDeferredUIMessage: withArguments: {closure} for: self at: (Time millisecondClockValue + deltaMSecs) ]. ^pr !

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The Trunk: KernelTests-tonyg.354.mcz
by commits＠source.squeak.org 30 Jan '19

30 Jan '19

Tony Garnock-Jones uploaded a new version of KernelTests to project The Trunk: http://source.squeak.org/trunk/KernelTests-tonyg.354.mcz ==================== Summary ==================== Name: KernelTests-tonyg.354 Author: tonyg Time: 30 January 2019, 5:20:42.793134 pm UUID: c2e9e25b-0ef1-4bd1-bdde-0c11647c959c Ancestors: KernelTests-eem.353 Improve promise resolution error handling via #fulfillWith:. =============== Diff against KernelTests-eem.353 =============== Item was added: + ----- Method: PromiseTest>>testFulfillWithError (in category 'testing') ----- + testFulfillWithError + | p | + p := Promise new. + p fulfillWith: [ 1 / 0 ] passErrors: false. + self assert: p isRejected. + self assert: ZeroDivide equals: p error class.! Item was added: + ----- Method: PromiseTest>>testFulfillWithHaltAndResult (in category 'testing') ----- + testFulfillWithHaltAndResult + | p | + p := Promise new. + [ + p fulfillWith: [ self halt. 3 + 4 ] + ] on: Halt do: [:ex | ex resume]. + self assert: p isResolved. + self assert: 7 equals: p value.! Item was added: + ----- Method: PromiseTest>>testFulfillWithResult (in category 'testing') ----- + testFulfillWithResult + | p | + p := Promise new. + p fulfillWith: [ 3 + 4 ]. + self assert: p isResolved. + self assert: 7 equals: p value.! Item was added: + ----- Method: PromiseTest>>testFutureRejectionInvisibleError (in category 'testing - future') ----- + testFutureRejectionInvisibleError + | p | + p := 1 future / 0. + p whenRejected: []. "Installing a rejection handler is enough to cause the exception to be swallowed." + self assert: (self waitUntil: [p isRejected] orCycleCount: 100). + self assert: p isRejected. + self assert: ZeroDivide equals: p error class.! Item was added: + ----- Method: PromiseTest>>testFutureRejectionVisibleError (in category 'testing - future') ----- + testFutureRejectionVisibleError + | p | + p := 1 future / 0. + [ + self assert: (self waitUntil: [p isRejected] orCycleCount: 100) + ] on: ZeroDivide do: [:ex | "Fall through." ]. + self assert: p isRejected. + self assert: ZeroDivide equals: p error class.! Item was added: + ----- Method: PromiseTest>>testFutureResolution (in category 'testing - future') ----- + testFutureResolution + | p | + p := 3 future + 4. + self assert: (self waitUntil: [p isResolved] orCycleCount: 100). + self assert: p isResolved. + self assert: 7 equals: p value.! Item was added: + ----- Method: PromiseTest>>waitUntil:orCycleCount: (in category 'testing - future') ----- + waitUntil: aBlock orCycleCount: anInteger + "This is a gross hack that depends on running the tests in Morphic. + We simply repeatedly do a cycle of the interaction loop, which happens + to also be the way that the queue of pending futures gets serviced." + | counter | + counter := 0. + [ + aBlock value ifTrue: [^ true]. + World doOneSubCycle. + counter := counter + 1. + counter >= anInteger ifTrue: [^ false]. + ] repeat!

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The Trunk: Kernel-tonyg.1212.mcz
by commits＠source.squeak.org 30 Jan '19

30 Jan '19

Tony Garnock-Jones uploaded a new version of Kernel to project The Trunk: http://source.squeak.org/trunk/Kernel-tonyg.1212.mcz ==================== Summary ==================== Name: Kernel-tonyg.1212 Author: tonyg Time: 30 January 2019, 5:20:04.609071 pm UUID: 03bd0e4c-76d2-4be6-a7e1-58414c7fab52 Ancestors: Kernel-mt.1211 Improve promise resolution error handling via #fulfillWith:. =============== Diff against Kernel-mt.1211 =============== Item was added: + ----- Method: Promise>>fulfillWith: (in category 'resolving') ----- + fulfillWith: aBlock + self fulfillWith: aBlock passErrors: rejecters isEmpty! Item was added: + ----- Method: Promise>>fulfillWith:passErrors: (in category 'resolving') ----- + fulfillWith: aBlock passErrors: aBoolean + "Evaluate aBlock. If it signals an exception, reject this promise with the exception + as the argument; if it returns a value [or another Promise], resolve this promise + with the result. + + If aBoolean is true, and an exception is signaled, it is passed out to the caller. + If aBoolean is false, signaled exceptions are considered handled after the promise + has been rejected." + [ self resolveWith: aBlock value ] + on: Exception + do: [ :ex | + (ex isKindOf: Halt) + ifTrue: [ex pass] + ifFalse: [ + self rejectWith: ex. + aBoolean ifTrue: [ ex pass ] ]]!

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The Trunk: Chronology-Core-dtl.40.mcz
by commits＠source.squeak.org 28 Jan '19

28 Jan '19

David T. Lewis uploaded a new version of Chronology-Core to project The Trunk: http://source.squeak.org/trunk/Chronology-Core-dtl.40.mcz ==================== Summary ==================== Name: Chronology-Core-dtl.40 Author: dtl Time: 27 January 2019, 6:03:22.297765 pm UUID: 1a41ff47-716c-4625-9be2-38eaa73f2640 Ancestors: Chronology-Core-dtl.38 Implement Timespan>>beCanonical from Chronology-Core-cmm.15, accidentally omitted in recent UTC updates. =============== Diff against Chronology-Core-dtl.38 =============== Item was added: + ----- Method: Timespan>>beCanonical (in category 'squeak protocol') ----- + beCanonical + "Chronology preserves Timespans that are extracted from DateAndTime's, making Dates, Months and Years in Squeak able to represent a true Timespan of those durations starting at a specific local DateAndTime. In case a canonical version is needed, make the receiver independent of any Timezone by removing it." + start makeUTC!

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The Trunk: Chronology-Tests-dtl.20.mcz
by commits＠source.squeak.org 28 Jan '19

28 Jan '19

David T. Lewis uploaded a new version of Chronology-Tests to project The Trunk: http://source.squeak.org/trunk/Chronology-Tests-dtl.20.mcz ==================== Summary ==================== Name: Chronology-Tests-dtl.20 Author: dtl Time: 27 January 2019, 6:02:53.312815 pm UUID: 005bcc36-75cd-4ade-82b4-9cbef7dbf8fb Ancestors: Chronology-Tests-dtl.19 Add TimespanTest>>testBeCanonical to document the behavior as implemented in Chronology prior to the recent UTC updates. =============== Diff against Chronology-Tests-dtl.19 =============== Item was added: + ----- Method: TimespanTest>>testBeCanonical (in category 'Tests') ----- + testBeCanonical + + | start ts1 ts2 ts3 | + start := '2019-01-27T17:11:40.061188-05:00' asDateAndTime. + ts1 := Timespan starting: start duration: 123456 seconds. + ts2 := ts1 deepCopy. + ts3 := ts2 beCanonical. + self assert: ts2 + identical: ts3 + description: 'beCanonical modifies the receiver, not a copy thereof'. + self deny: ts3 = ts1. + self assert: '2019-01-27T17:11:40.061188-05:00' asDateAndTime + equals: ts1 start + description: 'original timespan start is not modified'. + self assert: ts1 duration + equals: ts3 duration + description: 'duration does not change'. + self assert: '2019-01-27T17:11:40.061188+00:00' asDateAndTime + equals: ts3 start. + self deny: ts1 start = ts3 start + description: 'magnitude of start time is changed'. + self assert: 5 hours + equals: start - ts3 start + description: 'magnitude of start time is changed'. + self assert: 0 seconds + equals: ts3 start offset + description: 'time zone offset is zero'. + self assert: 5 hours negated + equals: ts1 start offset + description: 'original timezone was -18000'. + !

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The Trunk: Chronology-Tests-dtl.19.mcz
by commits＠source.squeak.org 27 Jan '19

27 Jan '19

David T. Lewis uploaded a new version of Chronology-Tests to project The Trunk: http://source.squeak.org/trunk/Chronology-Tests-dtl.19.mcz ==================== Summary ==================== Name: Chronology-Tests-dtl.19 Author: dtl Time: 27 January 2019, 4:43:34.528077 pm UUID: 00b997fd-2217-4b95-b2d3-ca2a4198f6b9 Ancestors: Chronology-Tests-dtl.18 Revert to the original version of DateAndTimeLeapTest to restore its author initials and timestamp (tlk 1/2/2004 22:05). The test now now passes, so remove it as an expected failure. Chronology tests are green. =============== Diff against Chronology-Tests-dtl.18 =============== Item was removed: - ----- Method: DateAndTimeLeapTest>>expectedFailures (in category 'failures') ----- - expectedFailures - - ^ #(testAsSeconds)! Item was changed: ----- Method: DateAndTimeLeapTest>>testAsSeconds (in category 'testing') ----- testAsSeconds + self assert: aDuration asSeconds = 48780. + self assert: aDateAndTime asSeconds = 3255507180 + + ! - self assert: aDuration asSeconds = 48780. - self assert: aDateAndTime asSeconds = 3255507180!

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The Trunk: Chronology-Tests-dtl.18.mcz
by commits＠source.squeak.org 27 Jan '19

27 Jan '19

David T. Lewis uploaded a new version of Chronology-Tests to project The Trunk: http://source.squeak.org/trunk/Chronology-Tests-dtl.18.mcz ==================== Summary ==================== Name: Chronology-Tests-dtl.18 Author: dtl Time: 27 January 2019, 1:21:59.414215 pm UUID: 5411396e-c5fc-4517-97ef-5cf9e7aa5dea Ancestors: Chronology-Tests-pre.17 Do not use #makeUTC in DateAndTimeTest>>testGetSeconds because it modifies magnitude. =============== Diff against Chronology-Tests-pre.17 =============== Item was changed: ----- Method: DateAndTimeTest>>testGetSeconds (in category 'Tests') ----- testGetSeconds "Verify that getSeconds represents whole seconds in the local time zone. For a given instance of DateAndTime, changing the time zone offset changes the local representation, but does not affect magnitude (time since a defiined epoch). Therefore, if time zone offset changes, the asSeconds value should not change, and the getSeconds value should change to reflect local timezone." | dt s1 id stSeconds seconds1 seconds2 | s1 := '2019-01-12T10:07:05.18743-05:00'. dt := s1 asDateAndTime. self assert: 18000 seconds negated equals: dt offset. seconds1 := dt getSeconds. self assert: 36425 equals: seconds1. id := dt identityHash. stSeconds := dt asSeconds. + dt localOffsetSeconds: 0. "make the receiver's timezone GMT, do not change magnitude" - dt makeUTC. "make the receiver's timezone GMT, do not change magnitude" self assert: id equals: dt identityHash. "same object, not a copy" self assert: '2019-01-12T15:07:05.18743+00:00' equals: dt asString. self assert: stSeconds equals: dt asSeconds. "magnitude unchanged" self assert: '2019-01-12T10:07:05.18743-05:00' asDateAndTime equals: dt. "still equal" seconds2 := dt getSeconds. self deny: seconds1 equals: seconds2. self assert: 54425 equals: seconds2. !

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The Trunk: Chronology-Core-dtl.38.mcz
by commits＠source.squeak.org 27 Jan '19

27 Jan '19

David T. Lewis uploaded a new version of Chronology-Core to project The Trunk: http://source.squeak.org/trunk/Chronology-Core-dtl.38.mcz ==================== Summary ==================== Name: Chronology-Core-dtl.38 Author: dtl Time: 27 January 2019, 1:21:28.699596 pm UUID: 1b64f41b-a799-4f9d-9037-cab677271baa Ancestors: Chronology-Core-dtl.33 Change DateAndTime>>makeUTC to behave as in prior versions of Chronology, and expand its comment to explain that both magniitude and timezone offset are changed in the receiver. Update DateAndTime>>asUTC to avoid use of makeUTC.Fixes three failing unit tests. =============== Diff against Chronology-Core-dtl.33 =============== Item was changed: ----- Method: DateAndTime>>asUTC (in category 'ansi protocol') ----- asUTC localOffsetSeconds = 0 ifTrue: [ ^self ]. + ^self copy localOffsetSeconds: 0.! - ^self copy makeUTC! Item was changed: ----- Method: DateAndTime>>makeUTC (in category 'squeak protocol') ----- makeUTC + "Make the receiver's timezone UTC. This adjusts both the magnitude and + local offset of the receiver such that self asString remains unchanged + except for a zero timezone offset." + + ^ self + utcMicroseconds: localOffsetSeconds * 1000000 + utcMicroseconds + offset: 0 + ! - "Make the receiver's timezone UTC." - localOffsetSeconds := 0!

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The Trunk: Help-Squeak-Project-pre.65.mcz
by commits＠source.squeak.org 25 Jan '19

25 Jan '19

Patrick Rein uploaded a new version of Help-Squeak-Project to project The Trunk: http://source.squeak.org/trunk/Help-Squeak-Project-pre.65.mcz ==================== Summary ==================== Name: Help-Squeak-Project-pre.65 Author: pre Time: 25 January 2019, 6:12:43.460527 pm UUID: e1f3f5cb-41b0-334f-af09-83a6d3aa6484 Ancestors: Help-Squeak-Project-pre.64 Adds longer help texts to the message categories help chapters. =============== Diff against Help-Squeak-Project-pre.64 =============== Item was changed: + ----- Method: SqueakMessageCategoriesHelp class>>addAllCategoriesTopicTo: (in category 'private') ----- - ----- Method: SqueakMessageCategoriesHelp class>>addAllCategoriesTopicTo: (in category 'converting') ----- addAllCategoriesTopicTo: newTopic | mapping allCategoriesTopic | allCategoriesTopic := HelpTopic title: 'All message categories' icon: (HelpIcons iconNamed: #bookIcon) + contents: self allCategoriesExplanation. - contents: 'This topic contains a list of all message categories used in the system'. mapping := IdentityDictionary new. SystemNavigation allBehaviorsDo: [:behavior | ((behavior organization categories reject: [:category | category first = $*]) collect: [:category | (category findTokens: '-') first withBlanksTrimmed]) do: [:category | (mapping at: category asLowercase asSymbol ifAbsentPut: [Set new]) add: behavior]]. mapping keys sorted do: [:categoryName | allCategoriesTopic addSubtopic: (HelpTopic title: categoryName icon: (HelpIcons iconNamed: #pageIcon) contents: (((mapping at: categoryName) collect: [:c | c printString]) sorted joinSeparatedBy: ',' , String crlf))]. ^ newTopic addSubtopic: allCategoriesTopic! Item was added: + ----- Method: SqueakMessageCategoriesHelp class>>allCategoriesExplanation (in category 'contents') ----- + allCategoriesExplanation + + ^ 'This chapter contains a list of all message categories used in the system and in which classes they are used.'! Item was changed: + ----- Method: SqueakMessageCategoriesHelp class>>mainTopicExplanation (in category 'contents') ----- - ----- Method: SqueakMessageCategoriesHelp class>>mainTopicExplanation (in category 'converting') ----- mainTopicExplanation + ^ 'Message categories are useful for readers of a class to distinguish between different aspects of the class. Depending on the category users might have a different perspective on the class they look at. Selecting the right message category can be difficult as there might be several categories the method would fit into. The following guidelines might help with judging where to put methods: + + 1. Look for matching method categories in common classes such as Collections, Magnitude, or Object. Depending on the domain of your method this might also include common, but specialized, classes such as Form, Morph, AbstractSound and so on. + + 2. If the category you would like to use is already very full or does not describe the concern of your method very well, consider using subcategories. You can specify one by putting a dash between the category name and the subcategory name, e.g. ''menu - layout menu''. + + 3. Method categories are often used to denote whether a method should only be called by an object on itself. Such methods are often sorted into the ''private'' category. This immediately indicates which methods should rather not be used by other objects. At the same time the ''private'' category is very generic and does not help readers very much. Thus, consider using a subcategory which describes the concern of the method. + + This chapter further contains a more detailed description of some of the message categories and a separate subchapter listing all categories used in the system. The detailed descriptions all contain a list of example methods and, where appropriate, specify the meaning of the category in different contexts (e.g. packages or particular class hierarchies).'! - ^ 'Message categories are useful for readers of a class to distinguish between different aspects of the class. Depening on the category users might have a different perspective on the class they look at.'!

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Packages January 2019