Squeak-dev March 2016

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31 participants
150 discussions

Chronology ancestry update
by Chris Muller 03 Mar '16

03 Mar '16

Since I already have an update I wish to add to Chronology, I need to get its ancestry minimally in order first. Bert had the suggestion that we could carve out the Chronology MC definitions from past Kernel packages and make an all-new ancestry for Chronology. I really like this idea, but it will take some time to do it. In the meantime, I wish to ensure the minimum ancestral documentation is captured into the new Chronology packages. If / when a full-history carve out of Kernel into Chronology is complete, those files can replace the ones we develop in the meantime. Dave, I made new nodes, Chronology-Core-dtl.1 and Chronology-Tests-dtl.1 are disconnected (we should probably move them to Treated). Also, what happened with KernelTests? There was a duplicate ancestor (dtl.306 and dtl.307) but 306 is not in the repository. So, I hope you don't mind, I felt the need to clean up this corruption so that the SCM tools won't blow up when they go looking for that missing ancestor.

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The Trunk: System-eem.805.mcz
by commits＠source.squeak.org 03 Mar '16

03 Mar '16

Eliot Miranda uploaded a new version of System to project The Trunk: http://source.squeak.org/trunk/System-eem.805.mcz ==================== Summary ==================== Name: System-eem.805 Author: eem Time: 3 March 2016, 11:09:29.833994 am UUID: 97d0ca96-9146-4ba4-919d-75e74cd848ce Ancestors: System-topa.804 Rename supportsImmutability to supportsreadOnlyObjects to avoid conflicts with the deep immutability concept. Update commentary for vmParameterAt:[put:] to describe the current VM. =============== Diff against System-topa.804 =============== Item was removed: - ----- Method: SmalltalkImage>>supportsImmutability (in category 'system attributes') ----- - supportsImmutability - "Answer whether the VM observes the per-object immutability flag and consequently - aborts writes to inst vars of, and fails primitives that attempt to write, to immutable objects." - "SmalltalkImage current supportsImmutability" - - ^(self vmParameterAt: 65) - ifNil: [false] - ifNotNil: - [:param| "In older VMs this is a boolean reflecting MULTIPLE_BYTECODE_SETS" - param isInteger "In newer VMs it is a set of integer flags, bit 1 of which is IMMUTABILITY" - ifTrue: [param anyMask: 2] - ifFalse: [false]]! Item was changed: ----- Method: SmalltalkImage>>supportsMultipleBytecodeSets (in category 'system attributes') ----- supportsMultipleBytecodeSets "Answer whether the VM supports multiple bytecodeSets." "SmalltalkImage current supportsMultipleBytecodeSets" ^(self vmParameterAt: 65) ifNil: [false] ifNotNil: + [:param| "In older VMs this is a boolean answering the vm-internal MULTIPLE_BYTECODE_SETS define" + param isInteger "In newer VMs it is a set of integer flags, bit 0 of which is the vm-internal MULTIPLE_BYTECODE_SETS define" - [:param| "In older VMs this is a boolean reflecting MULTIPLE_BYTECODE_SETS" - param isInteger "In newer VMs it is a set of integer flags, bit 0 of which is MULTIPLE_BYTECODE_SETS" ifTrue: [param anyMask: 1] ifFalse: [param]]! Item was added: + ----- Method: SmalltalkImage>>supportsReadOnlyObjects (in category 'system attributes') ----- + supportsReadOnlyObjects + "Answer whether the VM observes the per-object read-only flag and consequently aborts + writes to inst vars of, and fails primitives that attempt to modify, read-only objects." + "SmalltalkImage current supportsReadOnlyObjects" + + ^(self vmParameterAt: 65) + ifNil: [false] + ifNotNil: + [:param| "In older VMs this is a boolean answering the vm-internal MULTIPLE_BYTECODE_SETS define" + param isInteger "In newer VMs it is a set of integer flags, bit 1 of which is the vm-internal IMMUTABILITY define" + ifTrue: [param anyMask: 2] + ifFalse: [false]]! Item was changed: ----- Method: SmalltalkImage>>vmParameterAt: (in category 'system attributes') ----- vmParameterAt: parameterIndex "parameterIndex is a positive integer corresponding to one of the VM's internal parameter/metric registers. Answer with the current value of that register. Fail if parameterIndex has no corresponding register. VM parameters are numbered as follows: 1 byte size of old-space (read-only) 2 byte size of young-space (read-only) 3 byte size of object memory (read-only) 4 allocationCount (read-only; nil in Cog VMs) 5 allocations between GCs (read-write; nil in Cog VMs) 6 survivor count tenuring threshold (read-write) 7 full GCs since startup (read-only) 8 total milliseconds in full GCs since startup (read-only) 9 incremental GCs since startup (read-only; scavenging GCs on Spur) 10 total milliseconds in incremental/scavenging GCs since startup (read-only) 11 tenures of surving objects since startup (read-only) + 12-19 specific to the translating VM (nil in Cog VMs) + 20 utc microseconds at VM start-up (actually at time initialization, which precedes image load) (newer Cog VMs only). + 21 root (remembered) table size (read-only) + 22 root (remembered) table overflows since startup (read-only) - 12-20 specific to the translating VM (nil in Cog VMs) - 21 root table size (read-only) - 22 root table overflows since startup (read-only) 23 bytes of extra memory to reserve for VM buffers, plugins, etc. 24 memory threshold above which to shrink object memory (read-write) 25 ammount to grow by when growing object memory (read-write) 26 interruptChecksEveryNms - force an ioProcessEvents every N milliseconds (read-write) 27 number of times mark loop iterated for current IGC/FGC (read-only) includes ALL marking 28 number of times sweep loop iterated for current IGC/FGC (read-only) 29 number of times make forward loop iterated for current IGC/FGC (read-only) 30 number of times compact move loop iterated for current IGC/FGC (read-only) 31 number of grow memory requests (read-only) 32 number of shrink memory requests (read-only) 33 number of root table entries used for current IGC/FGC (read-only) 34 number of allocations done before current IGC/FGC (read-only) 35 number of survivor objects after current IGC/FGC (read-only) 36 millisecond clock when current IGC/FGC completed (read-only) 37 number of marked objects for Roots of the world, not including Root Table entries for current IGC/FGC (read-only) 38 milliseconds taken by current IGC (read-only) 39 Number of finalization signals for Weak Objects pending when current IGC/FGC completed (read-only) 40 BytesPerWord for this image 41 imageFormatVersion for the VM 42 number of stack pages in use (Cog Stack VM only, otherwise nil) 43 desired number of stack pages (stored in image file header, max 65535; Cog VMs only, otherwise nil) 44 size of eden, in bytes (Cog VMs only, otherwise nil) 45 desired size of eden, in bytes (stored in image file header; Cog VMs only, otherwise nil) 46 size of machine code zone, in bytes (stored in image file header; Cog JIT VM only, otherwise nil) 47 desired size of machine code zone, in bytes (applies at startup only, stored in image file header; Cog JIT VM only) 48 various properties of the Cog VM as an integer encoding an array of bit flags. + Bit 0: tells the VM that the image's Process class has threadId as its 5th inst var (after nextLink, suspendedContext, priority & myList) + Bit 1: on Cog JIT VMs asks the VM to set the flag bit in interpreted methods - Bit 0: implies the image's Process class has threadId as its 3rd inst var (zero relative) - Bit 1: on Cog VMs asks the VM to set the flag bit in interpreted methods Bit 2: if set, preempting a process puts it to the head of its run queue, not the back, + i.e. preempting a process by a higher priority one will not cause the preempted process to yield - i.e. preempting a process by a higher one will not cause the process to yield to others at the same priority. + Bit 3: in a muilt-threaded VM, if set, the Window system will only be accessed from the first VM thread + Bit 4: in a Spur vm, if set, causes weaklings and ephemerons to be queued individually for finalization 49 the size of the external semaphore table (read-write; Cog VMs only) + 50-51 reserved for VM parameters that persist in the image (such as eden above) + 52 root (remembered) table maximum size (read-only) + 53 the number of oldSpace segments (Spur only, otherwise nil) - 50-53 reserved for VM parameters that persist in the image (such as eden above) 54 total size of free old space (Spur only, otherwise nil) 55 ratio of growth and image size at or above which a GC will be performed post scavenge (Spur only, otherwise nil) 56 number of process switches since startup (read-only) 57 number of ioProcessEvents calls since startup (read-only) 58 number of forceInterruptCheck (Cog VMs) or quickCheckInterruptCalls (non-Cog VMs) calls since startup (read-only) 59 number of check event calls since startup (read-only) 60 number of stack page overflows since startup (read-only; Cog VMs only) 61 number of stack page divorces since startup (read-only; Cog VMs only) 62 number of machine code zone compactions since startup (read-only; Cog VMs only) 63 milliseconds taken by machine code zone compactions since startup (read-only; Cog VMs only) 64 current number of machine code methods (read-only; Cog VMs only) + 65 In newer Cog VMs a set of flags describing VM features, + if non-zero bit 0 implies multiple bytecode set support; + if non-zero bit 0 implies read-only object support + (read-only; Cog VMs only; nil in older Cog VMs, a boolean answering multiple bytecode support in not so old Cog VMs) - 65 true if the VM supports multiple bytecode sets; (read-only; Cog VMs only; nil in older Cog VMs) 66 the byte size of a stack page in the stack zone (read-only; Cog VMs only) + 67 the maximum allowed size of old space in bytes, 0 implies no internal limit (Spur VMs only). + 68 - 69 reserved for more Cog-related info - 67 - 69 reserved for more Cog-related info 70 the value of VM_PROXY_MAJOR (the interpreterProxy major version number) 71 the value of VM_PROXY_MINOR (the interpreterProxy minor version number)" <primitive: 254> self primitiveFailed! Item was changed: ----- Method: SmalltalkImage>>vmParameterAt:put: (in category 'vm parameters') ----- vmParameterAt: parameterIndex put: newValue "parameterIndex is a positive integer corresponding to one of the VM's internal parameter/metric registers. Store newValue (a positive integer) into that register and answer with the previous value that was stored there. Fail if newValue is out of range, if parameterIndex has no corresponding register, or if the corresponding register is read-only. + As of early 2016 the parameters which can be set are - As of 2011-ish the parameters which can be set are 5 allocations between GCs (read-write; nil in Cog VMs) 6 survivor count tenuring threshold (read-write) 23 bytes of extra memory to reserve for VM buffers, plugins, etc. 24 memory threshold above whichto shrink object memory (read-write) 25 memory headroom when growing object memory (read-write) 26 interruptChecksEveryNms - force an ioProcessEvents every N milliseconds (read-write) 43 desired number of stack pages (stored in image file header, max 65535; Cog VMs only, otherwise nil) 45 desired size of eden, in bytes (stored in image file header; Cog VMs only, otherwise nil) 47 desired size of machine code zone, in bytes (applies at startup only, stored in image file header; Cog JIT VM only) 48 various properties of the Cog VM as an integer encoding an array of bit flags. + Bit 0: tells the VM that the image's Process class has threadId as its 5th inst var (after nextLink, suspendedContext, priority & myList) + Bit 1: on Cog JIT VMs asks the VM to set the flag bit in interpreted methods + Bit 2: if set, preempting a process puts it to the head of its run queue, not the back, + i.e. preempting a process by a higher priority one will not cause the preempted process to yield + to others at the same priority. + Bit 3: in a muilt-threaded VM, if set, the Window system will only be accessed from the first VM thread + Bit 4: in a Spur vm, if set, causes weaklings and ephemerons to be queued individually for finalization + 49 the size of the external semaphore table (read-write; Cog VMs only) + 55 ratio of growth and image size at or above which a GC will be performed post scavenge (Spur only, otherwise nil) + 67 the maximum allowed size of old space in bytes, 0 implies no internal limit (Spur only)." - Bit 0: implies the image's Process class has threadId as its 3rd inst var (zero relative) - 49 the size of the external semaphore table (read-write; Cog VMs only)" <primitive: 254> self primitiveFailed!

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Re: [squeak-dev] The Trunk: System-eem.803.mcz
by Tobias Pape 03 Mar '16

03 Mar '16

Hi all, Hi Eliot, Hi Clément Well, you know I'm the opponent here regarding the Immutability naming. I hate that I have to come back to the naming thing here once again. But it is rather important for me, since I work on immutability concepts that are unlike what immutability would mean here. I think it is also important to know that immutability in most other languages means "it won't change whatsoever" (including OCaml[1], Racket[2], Haskell[3], or object-oriented programming in general[4]) Now, I see the need, usefulness, and practical implementation for objects that cannot be written and hence throw an error, which _then_ can be circumvented/made be writable. I'm all for it and I like it. Except for the name. As Clément put it: "As argued on the virtual machine mailing list, we are talking about a write-barrier more than immutability itself." I would hence propose to name those objects locked objects with the accompanying Someone-tries-to-write-that-Error named ObjectIsLockedError and the state-change messages Object>>lock Object>>unlock and likewise the VM-information SmalltalkImage>>supportsLockedObjects I know, re-iterating this is tedious, but it will avoid unmet expectations by newcomers from other languages as well as name clashes with actual immutability implementations (how should we name those, then)? With apologies -Tobias [1]: http://typeocaml.com/2015/01/02/immutable/ [2]: a) http://docs.racket-lang.org/reference/pairs.html "Pairs are not mutable" b) http://docs.racket-lang.org/reference/strings.html [3]: https://wiki.haskell.org/A_brief_introduction_to_Haskell#Immutable_declarat… [4]: https://en.wikipedia.org/wiki/Immutable_object On 03.03.2016, at 03:19, commits(a)source.squeak.org wrote: > Eliot Miranda uploaded a new version of System to project The Trunk: > http://source.squeak.org/trunk/System-eem.803.mcz > > ==================== Summary ==================== > > Name: System-eem.803 > Author: eem > Time: 2 March 2016, 7:18:21.713694 pm > UUID: 934ce776-0717-469b-8818-300954393791 > Ancestors: System-bf.802 > > Add getters that answer whether the VM supports immutability or multiple bytecode sets. > > =============== Diff against System-bf.802 =============== > > Item was added: > + ----- Method: SmalltalkImage>>supportsImmutability (in category 'system attributes') ----- > + supportsImmutability > + "Answer whether the VM observes the per-object immutability flag and consequently > + aborts writes to inst vars of, and fails primitives that attempt to write, to immutable objects." > + "SmalltalkImage current supportsImmutability" > + > + ^(self vmParameterAt: 65) > + ifNil: [false] > + ifNotNil: > + [:param| "In older VMs this is a boolean reflecting MULTIPLE_BYTECODE_SETS" > + param isInteger "In newer VMs it is a set of integer flags, bit 1 of which is IMMUTABILITY" > + ifTrue: [param anyMask: 2] > + ifFalse: [false]]! > > Item was added: > + ----- Method: SmalltalkImage>>supportsMultipleBytecodeSets (in category 'system attributes') ----- > + supportsMultipleBytecodeSets > + "Answer whether the VM supports multiple bytecodeSets." > + "SmalltalkImage current supportsMultipleBytecodeSets" > + > + ^(self vmParameterAt: 65) > + ifNil: [false] > + ifNotNil: > + [:param| "In older VMs this is a boolean reflecting MULTIPLE_BYTECODE_SETS" > + param isInteger "In newer VMs it is a set of integer flags, bit 0 of which is MULTIPLE_BYTECODE_SETS" > + ifTrue: [param anyMask: 1] > + ifFalse: [param]]! > >

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The Trunk: Graphics-tfel.328.mcz
by commits＠source.squeak.org 03 Mar '16

03 Mar '16

Tim Felgentreff uploaded a new version of Graphics to project The Trunk: http://source.squeak.org/trunk/Graphics-tfel.328.mcz ==================== Summary ==================== Name: Graphics-tfel.328 Author: tfel Time: 3 March 2016, 5:13:19.231036 pm UUID: 820a35b1-5ebb-472c-a0af-cab2230b27f4 Ancestors: Graphics-tfel.327 Add a method to query if the Display is deferring updates =============== Diff against Graphics-tfel.327 =============== Item was added: + ----- Method: DisplayScreen class>>isDeferringUpdates (in category 'testing') ----- + isDeferringUpdates + + ^ DeferringUpdates == true!

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The Trunk: System-topa.804.mcz
by commits＠source.squeak.org 03 Mar '16

03 Mar '16

Tobias Pape uploaded a new version of System to project The Trunk: http://source.squeak.org/trunk/System-topa.804.mcz ==================== Summary ==================== Name: System-topa.804 Author: topa Time: 3 March 2016, 5:12:55.830954 pm UUID: cbcd913c-9bbb-41f1-b85e-82859d493748 Ancestors: System-eem.803 Use itemSelector for bith removed and recategorized events. =============== Diff against System-eem.803 =============== Item was changed: ----- Method: SmalltalkImage>>event: (in category 'sources, changes log') ----- event: anEvent "Hook for SystemChangeNotifier" anEvent isDoIt ifTrue: [^self logChange: anEvent item]. (anEvent itemKind = SystemChangeNotifier categoryKind) ifTrue: [ anEvent isAdded ifTrue: [^self logChange: 'SystemOrganization addCategory: ', anEvent item storeString]. anEvent isRemoved ifTrue: [^self logChange: 'SystemOrganization removeSystemCategory: ', anEvent item storeString]. anEvent isRenamed ifTrue: [^self logChange: 'SystemOrganization renameCategory: ', anEvent oldName storeString, ' toBe: ', anEvent newName storeString]. ]. (anEvent itemKind = SystemChangeNotifier classKind) ifTrue: [ anEvent item acceptsLoggingOfCompilation ifFalse: [^self]. anEvent isAdded ifTrue: [ self logChange: anEvent item definition. ]. anEvent isModified ifTrue: [^self logChange: anEvent item definition]. anEvent isRemoved ifTrue: [^self logChange: 'Smalltalk removeClassNamed: ' , anEvent item name storeString]. anEvent isRenamed ifTrue: [^self logChange: 'Smalltalk renameClassNamed: ', anEvent oldName storeString, ' as: ', anEvent newName storeString]. anEvent isRecategorized ifTrue: [^self logChange: 'SystemOrganization classify: ', anEvent item name storeString, ' under: ', anEvent itemCategory storeString]. ]. (anEvent itemKind = SystemChangeNotifier protocolKind) ifTrue: [ anEvent isAdded ifTrue: [^self logChange: anEvent itemClass name , ' organization addCategory: ' , anEvent itemProtocol storeString]. anEvent isRemoved ifTrue: [^self logChange: anEvent itemClass name , ' organization removeCategory: ' , anEvent itemProtocol storeString]. anEvent isRenamed ifTrue: [^self logChange: anEvent itemClass name , ' organization renameCategory: ' , anEvent oldName storeString, ' toBe: ', anEvent newName storeString]. ]. (anEvent itemKind = SystemChangeNotifier methodKind) ifTrue: [ anEvent itemClass acceptsLoggingOfCompilation ifFalse: [^self]. anEvent isRemoved ifTrue: [^self logChange: anEvent itemClass name , ' removeSelector: ' , anEvent itemSelector storeString]. anEvent isRecategorized ifTrue: [ + ^self logChange: anEvent itemClass name , ' organization classify: ', anEvent itemSelector storeString, ' under: ', anEvent itemProtocol storeString. - ^self logChange: anEvent itemClass name , ' organization classify: ', anEvent item selector storeString, ' under: ', anEvent itemProtocol storeString. ]. ].!

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The Trunk: Morphic-mt.1093.mcz
by commits＠source.squeak.org 03 Mar '16

03 Mar '16

Marcel Taeumel uploaded a new version of Morphic to project The Trunk: http://source.squeak.org/trunk/Morphic-mt.1093.mcz ==================== Summary ==================== Name: Morphic-mt.1093 Author: mt Time: 3 March 2016, 11:22:03.445273 am UUID: ca974de9-2076-4052-bf53-b723668933be Ancestors: Morphic-topa.1092 Makes tree widgets honor the mouse-over-for-keyboard-focus preference. Just like PluggableListMorphs do. Implementation comes from there. =============== Diff against Morphic-topa.1092 =============== Item was changed: ----- Method: SimpleHierarchicalListMorph>>mouseEnter: (in category 'event handling') ----- mouseEnter: event + super mouseEnter: event. + + (SystemWindow allWindowsAcceptInput or: [Preferences mouseOverForKeyboardFocus]) + ifTrue: [event hand newKeyboardFocus: self].! - event hand newKeyboardFocus: self!

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The Trunk: System-eem.803.mcz
by commits＠source.squeak.org 03 Mar '16

03 Mar '16

Eliot Miranda uploaded a new version of System to project The Trunk: http://source.squeak.org/trunk/System-eem.803.mcz ==================== Summary ==================== Name: System-eem.803 Author: eem Time: 2 March 2016, 7:18:21.713694 pm UUID: 934ce776-0717-469b-8818-300954393791 Ancestors: System-bf.802 Add getters that answer whether the VM supports immutability or multiple bytecode sets. =============== Diff against System-bf.802 =============== Item was added: + ----- Method: SmalltalkImage>>supportsImmutability (in category 'system attributes') ----- + supportsImmutability + "Answer whether the VM observes the per-object immutability flag and consequently + aborts writes to inst vars of, and fails primitives that attempt to write, to immutable objects." + "SmalltalkImage current supportsImmutability" + + ^(self vmParameterAt: 65) + ifNil: [false] + ifNotNil: + [:param| "In older VMs this is a boolean reflecting MULTIPLE_BYTECODE_SETS" + param isInteger "In newer VMs it is a set of integer flags, bit 1 of which is IMMUTABILITY" + ifTrue: [param anyMask: 2] + ifFalse: [false]]! Item was added: + ----- Method: SmalltalkImage>>supportsMultipleBytecodeSets (in category 'system attributes') ----- + supportsMultipleBytecodeSets + "Answer whether the VM supports multiple bytecodeSets." + "SmalltalkImage current supportsMultipleBytecodeSets" + + ^(self vmParameterAt: 65) + ifNil: [false] + ifNotNil: + [:param| "In older VMs this is a boolean reflecting MULTIPLE_BYTECODE_SETS" + param isInteger "In newer VMs it is a set of integer flags, bit 0 of which is MULTIPLE_BYTECODE_SETS" + ifTrue: [param anyMask: 1] + ifFalse: [param]]!

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Daily Commit Log
by commits＠source.squeak.org 02 Mar '16

02 Mar '16

Changes to Trunk (http://source.squeak.org/trunk.html) in the last 24 hours: http://lists.squeakfoundation.org/pipermail/packages/2016-March/009468.html Name: Morphic-topa.1091 Ancestors: Morphic-topa.1090 Wee tiny cosmetic change to trees: Start tree-lines at indent-level 1, so tress with no children beyond the roots whatsoever look very similar to lists. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2016-March/009469.html Name: Morphic-topa.1092 Ancestors: Morphic-topa.1091 Adopt Tree (up/down/home/pg up/pg down) key handling to be more similar to List key handling. ============================================= http://lists.squeakfoundation.org/pipermail/packages/2016-March/009470.html Name: Tools-topa.677 Ancestors: Tools-topa.676 pull up toggleBreakOnEntry and robustify things against missing compiled methods ============================================= http://lists.squeakfoundation.org/pipermail/packages/2016-March/009471.html Name: Kernel-mt.1003 Ancestors: Kernel-dtl.1002 Restores some missing messages in EventSensor. Provide the default callback for swapMouseButtons preference as expected by our preference system. =============================================

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The Trunk: Kernel-mt.1003.mcz
by commits＠source.squeak.org 02 Mar '16

02 Mar '16

Marcel Taeumel uploaded a new version of Kernel to project The Trunk: http://source.squeak.org/trunk/Kernel-mt.1003.mcz ==================== Summary ==================== Name: Kernel-mt.1003 Author: mt Time: 2 March 2016, 1:09:36.194111 pm UUID: 17eba02e-a573-4eb3-bcf6-dbb07fce130f Ancestors: Kernel-dtl.1002 Restores some missing messages in EventSensor. Provide the default callback for swapMouseButtons preference as expected by our preference system. =============== Diff against Kernel-dtl.1002 =============== Item was added: + ----- Method: EventSensor class>>duplicateControlAndAltKeys: (in category 'public') ----- + duplicateControlAndAltKeys: aBoolean + "EventSensor duplicateControlAndAltKeys: true" + + Preferences setPreference: #duplicateControlAndAltKeys toValue: aBoolean. + self installKeyDecodeTable + ! Item was added: + ----- Method: EventSensor class>>swapControlAndAltKeys: (in category 'public') ----- + swapControlAndAltKeys: aBoolean + "EventSensor swapControlAndAltKeys: true" + + Preferences setPreference: #swapControlAndAltKeys toValue: aBoolean. + self installKeyDecodeTable! Item was added: + ----- Method: EventSensor class>>swapMouseButtons: (in category 'public') ----- + swapMouseButtons: aBoolean + "EventSensor swapMouseButtons: true" + + Preferences setPreference: #swapMouseButtons toValue: aBoolean. + self installMouseDecodeTable.! Item was added: + ----- Method: EventSensor class>>swapMouseButtonsChanged (in category 'preference change notification') ----- + swapMouseButtonsChanged + + self installMouseDecodeTable.!

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Call for Papers: 11th Workshop on Implementation, Compilation, Optimization of OO Languages, Programs and Systems
by Stefan Marr 02 Mar '16

02 Mar '16

Call for Papers: ICOOOLPS’16 ============================ 11th Workshop on Implementation, Compilation, Optimization of OO Languages, Programs and Systems Co-located with ECOOP July 18, 2016, Rome, Italy URL: http://2016.ecoop.org/track/ICOOOLPS-2016 Twitter: @ICOOOLPS The ICOOOLPS workshop series brings together researchers and practitioners working in the field of language implementation and optimization. The goal of the workshop is to discuss emerging problems and research directions as well as new solutions to classic performance challenges. The topics of interest for the workshop include techniques for the implementation and optimization of a wide range of languages including but not limited to object-oriented ones. Furthermore, meta-compilation techniques or language-agnostic approaches are welcome, too. A non-exclusive list of topics follows: - implementation and optimization of fundamental languages features (from automatic memory management to zero-overhead metaprogramming) - runtime systems technology (libraries, virtual machines) - static, adaptive, and speculative optimizations and compiler techniques - meta-compilation techniques and language-agnostic approaches for the efficient implementation of languages - compilers (intermediate representations, offline and online optimizations,...) - empirical studies on language usage, benchmark design, and benchmarking methodology - resource-sensitive systems (real-time, low power, mobile, cloud) - studies on design choices and tradeoffs (dynamic vs. static compilation, heuristics vs. programmer input,...) - tooling support, debuggability and observability of languages as well as their implementations ### Workshop Format and Submissions This workshop welcomes the presentation and discussion of new ideas and emerging problems that give a chance for interaction and exchange. More mature work is welcome as part of a mini-conference format, too. We aim to interleave interactive brainstorming and demonstration sessions between the formal presentations to foster an active exchange of ideas. The workshop papers will be published either in the ACM DL or in the Dagstuhl LIPIcs ECOOP Workshop proceedings. Until further notice, please use the ACM SIGPLAN template with a 10pt font size: http://www.sigplan.org/Resources/Author/ - position and work-in-progress paper: 1-4 pages - technical paper: max. 10 pages - demos and posters: 1-page abstract For the submission, please use the HotCRP system: http://ssw.jku.at/icooolps/ ### Important Dates - abstract submission: April 11, 2016 - paper submission: April 15, 2016 - notification: May 13, 2016 - all deadlines: Anywhere on Earth (AoE), i.e., GMT/UTC−12:00 hour - workshop: July 18th, 2016 ### Program Committee Edd Barrett, King’s College London, UK Clement Bera, Inria Lille, France Maxime Chevalier-Boisvert, Université de Montréal, Canada Tim Felgentreff, Hasso Plattner Institute, Germany Roland Ducournau, LIRMM, Université de Montpellier, France Elisa Gonzalez Boix, Vrije Universiteit Brussel, Belgium David Gregg, Trinity College Dublin, Ireland Matthias Grimmer, Johannes Kepler University Linz, Austria Michael Haupt, Oracle, Germany Richard Jones, University of Kent, UK Tomas Kalibera, Northeastern University, USA Hidehiko Masuhara, Tokyo Institute of Technology, Japan Tiark Rompf, Purdue University, USA Jennifer B. Sartor, Ghent University, Belgium Sam Tobin-Hochstadt, Indiana University, USA ### Workshop Organizers Stefan Marr, Johannes Kepler University Linz, Austria Eric Jul, University of Oslo, Norway For questions or concerns, please mail to stefan.marr at jku.at or contact us via https://twitter.com/icooolps.

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