- Pharo-dev - lists.pharo.org

[pharo-project/pharo-core] c9ddee: 40318
by GitHub Oct. 22, 2014

Oct. 22, 2014

Branch: refs/heads/4.0 Home: https://github.com/pharo-project/pharo-core Commit: c9ddeec02d7b62c2dfead6d52527427d68a4bad3 https://github.com/pharo-project/pharo-core/commit/c9ddeec02d7b62c2dfead6d5… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2014-10-22 (Wed, 22 Oct 2014) Changed paths: A KeyChainTest.package/ManifestKeyChainTest.class/README.md A KeyChainTest.package/ManifestKeyChainTest.class/class/meta data/rejectClasses.st A KeyChainTest.package/ManifestKeyChainTest.class/class/meta data/rejectRules.st A KeyChainTest.package/ManifestKeyChainTest.class/class/meta data/ruleLongMethodsRuleV1FalsePositive.st A KeyChainTest.package/ManifestKeyChainTest.class/definition.st A KeyChainTest.package/PharoUserPermissionsTest.class/README.md A KeyChainTest.package/PharoUserPermissionsTest.class/definition.st A KeyChainTest.package/PharoUserPermissionsTest.class/instance/tests/testCanBrowse.st A KeyChainTest.package/PharoUserPermissionsTest.class/instance/tests/testCanDebug.st A KeyChainTest.package/PharoUserPermissionsTest.class/instance/tests/testCanDropOSFile.st A KeyChainTest.package/PharoUserPermissionsTest.class/instance/tests/testCanEditCode.st A KeyChainTest.package/PharoUserPermissionsTest.class/instance/tests/testCanEditUser.st A KeyChainTest.package/PharoUserPermissionsTest.class/instance/tests/testCanEvaluateCode.st A KeyChainTest.package/PharoUserPermissionsTest.class/instance/tests/testCanInspect.st A KeyChainTest.package/PharoUserPermissionsTest.class/instance/tests/testCanRunStartupScript.st A KeyChainTest.package/PharoUserPermissionsTest.class/instance/tests/testCanSaveImage.st A KeyChainTest.package/PharoUserPermissionsTest.class/instance/tests/testCanShowMorphHalo.st A KeyChainTest.package/PharoUserPermissionsTest.class/instance/tests/testIsRoot.st A KeyChainTest.package/PharoUserTest.class/README.md A KeyChainTest.package/PharoUserTest.class/definition.st A KeyChainTest.package/PharoUserTest.class/instance/tests/testUsername.st M Nautilus.package/AbstractNautilusUI.class/instance/announcement registration/registerToGroupAnnouncements.st M Nautilus.package/AbstractNautilusUI.class/instance/announcement registration/registerToMCAnnouncements.st M Nautilus.package/AbstractNautilusUI.class/instance/announcement registration/registerToSystemAnnouncements.st M Nautilus.package/AbstractNautilusUI.class/instance/announcement registration/registerToTestAnnouncements.st A NetworkTests.package/UDPSocketEchoTest.class/README.md A NetworkTests.package/UDPSocketEchoTest.class/definition.st A NetworkTests.package/UDPSocketEchoTest.class/instance/accessing/localhost.st A NetworkTests.package/UDPSocketEchoTest.class/instance/accessing/port.st A NetworkTests.package/UDPSocketEchoTest.class/instance/private/receiveUDPDataFrom_.st A NetworkTests.package/UDPSocketEchoTest.class/instance/private/withUDPEchoServer_.st A NetworkTests.package/UDPSocketEchoTest.class/instance/testing/clientSend_.st A NetworkTests.package/UDPSocketEchoTest.class/instance/testing/runServer.st A NetworkTests.package/UDPSocketEchoTest.class/instance/testing/testEcho.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - scripts/script318.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - updates/update40318.st M ScriptLoader40.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st Log Message: ----------- 40318 14276 Add UDPSocketEchoTest test/example https://pharo.fogbugz.com/f/cases/14276 14222 Tests around KeyChain https://pharo.fogbugz.com/f/cases/14222 14281 Replace Announcer>>#on:send:to:s senders in Nautilus https://pharo.fogbugz.com/f/cases/14281 http://files.pharo.org/image/40/40318.zip

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Inspector for Opal IR -> source mapping
by Marcus Denker Oct. 22, 2014

Oct. 22, 2014

Hi, There is now special inspector view for the Opal IR: TODO: show how it maps to Bytecode and AST. https://pharo.fogbugz.com/f/cases/14241/add-a-inspector-view-for-IRMethods

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Re: [Pharo-dev] Spec Understandability
by Ralph Boland Oct. 21, 2014

Oct. 21, 2014

> Besides error intractability, there is also a cost to understanding the > system via exploration - a glorious benefit of Morphic. In the past, one > only had to bring up halos on and inspect a button to see how to duplicate > its action. Now, to see what happens when one presses Versionner's "Commit > the project" button, you have to drill down in the inspector from > aButtonXyzMorph -> model -> actionHolder -> value, a tedious and opaque > process. > Of course, I'm not in any way against Spec or its goals, just sharing my > unfolding experience using it. I'm running Squeak 4.0 but I assume my question still applies. If not, other Pharo users might want to know. I am not in the habit of using halos, not really sure what they are for. But your description implies they are quite useful. What does "bring up halos on and inspect a button to see how to duplicate > its action" mean? Could you please describe in step by step detail. Ralph Boland

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[pharo-project/pharo-core] 695fbf: 40317
by GitHub Oct. 21, 2014

Oct. 21, 2014

Branch: refs/heads/4.0 Home: https://github.com/pharo-project/pharo-core Commit: 695fbfc73e087100e61aeb64753b897c920570a7 https://github.com/pharo-project/pharo-core/commit/695fbfc73e087100e61aeb64… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2014-10-21 (Tue, 21 Oct 2014) Changed paths: M AST-Core.package/RBIdentifierToken.class/definition.st A AST-Core.package/RBIdentifierToken.class/instance/accessing/stop.st A AST-Core.package/RBIdentifierToken.class/instance/accessing/stop_.st M AST-Core.package/RBKeywordToken.class/definition.st A AST-Core.package/RBKeywordToken.class/instance/accessing/stop.st A AST-Core.package/RBKeywordToken.class/instance/accessing/stop_.st A AST-Core.package/RBLiteralArrayNode.class/instance/accessing/selectorParts.st A AST-Core.package/RBLiteralArrayNode.class/instance/accessing/sourcePointer_.st A AST-Core.package/RBLiteralArrayNode.class/instance/accessing/stop_.st A AST-Core.package/RBMessageNode.class/instance/accessing/sourcePointer_.st A AST-Core.package/RBMessageNode.class/instance/accessing/stop_.st M AST-Core.package/RBMethodNode.class/instance/accessing/start.st M AST-Core.package/RBMethodNode.class/instance/accessing/stop.st A AST-Core.package/RBProgramNode.class/instance/accessing/selectorParts.st M AST-Core.package/RBProgramNode.class/instance/accessing/sourceInterval.st A AST-Core.package/RBProgramNode.class/instance/accessing/sourcePointer_.st A AST-Core.package/RBProgramNode.class/instance/accessing/stop_.st A AST-Core.package/RBProgramNode.class/instance/accessing/token.st A AST-Core.package/RBProgramNode.class/instance/replacing/calculateInnerCommentsSize_.st A AST-Core.package/RBProgramNode.class/instance/replacing/calculateSourceInterval_.st M AST-Core.package/RBProgramNode.class/instance/replacing/replaceWith_.st A AST-Core.package/RBToken.class/instance/accessing/sourcePointer_.st M AST-Tests-Core.package/RBProgramNodeTest.class/instance/testing-replacing/testReplaceLiteral.st M AST-Tests-Core.package/RBProgramNodeTest.class/instance/testing-replacing/testReplaceLiteralArray.st M AST-Tests-Core.package/RBProgramNodeTest.class/instance/testing-replacing/testReplaceMessage.st M AST-Tests-Core.package/RBProgramNodeTest.class/instance/testing-replacing/testReplaceMessageArgument.st M AST-Tests-Core.package/RBProgramNodeTest.class/instance/testing-replacing/testReplaceMessageReceiver.st M AST-Tests-Core.package/RBProgramNodeTest.class/instance/testing-replacing/testReplaceVariable.st A OpalCompiler-Core.package/IRInstruction.class/instance/inspector/children.st A OpalCompiler-Core.package/IRInstruction.class/instance/inspector/sourceInterval.st A OpalCompiler-Core.package/IRInstruction.class/instance/printing/printOn_.st A OpalCompiler-Core.package/IRMethod.class/instance/inspector/children.st R OpalCompiler-Core.package/IRMethod.class/instance/inspector/gtInspectorIrIn_.st M OpalCompiler-Core.package/IRPrinterV2.class/instance/visiting/visitPushClosureCopy_.st A OpalCompiler-Core.package/IRSequence.class/instance/inspector/children.st A OpalCompiler-Core.package/IRSequence.class/instance/inspector/sourceInterval.st A OpalTools.package/GTIRBrowser.class/README.md A OpalTools.package/GTIRBrowser.class/definition.st A OpalTools.package/GTIRBrowser.class/instance/building/compose.st A OpalTools.package/GTIRBrowser.class/instance/building/sourceIn_.st A OpalTools.package/GTIRBrowser.class/instance/building/treeIn_.st A OpalTools.package/extension/IRInstruction/instance/gtInspectorSourceCodeIn_.st A OpalTools.package/extension/IRMethod/instance/gtInspectorBytecodeIn_.st A OpalTools.package/extension/IRMethod/instance/gtInspectorIrIn_.st A OpalTools.package/extension/IRMethod/instance/gtInspectorSourceCodeIn_.st A OpalTools.package/extension/IRMethod/instance/gtInspectorTreeIn_.st A OpalTools.package/extension/IRSequence/instance/gtInspectorSourceCodeIn_.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - scripts/script317.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - updates/update40317.st M ScriptLoader40.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st Log Message: ----------- 40317 14241 add a inspector view for IRMethods https://pharo.fogbugz.com/f/cases/14241 14254 AST method replaceWith: does not change source interval https://pharo.fogbugz.com/f/cases/14254 http://files.pharo.org/image/40/40317.zip

1 0

[pharo-project/pharo-core]
by GitHub Oct. 21, 2014

Oct. 21, 2014

Branch: refs/tags/40317 Home: https://github.com/pharo-project/pharo-core

1 0

What hardware is smalltalkhub running on?
by Stephan Eggermont Oct. 21, 2014

Oct. 21, 2014

Is that virtualized? It feels like it is paged out to slow disk. The access patterns for smalltalkhub probably don't fit well with virtualization assumptions. Stephan

1 0

[pharo-project/pharo-core] 6f1124: 40316
by GitHub Oct. 21, 2014

Oct. 21, 2014

Branch: refs/heads/4.0 Home: https://github.com/pharo-project/pharo-core Commit: 6f112484d25578d02c2d745fab58c5c71434271e https://github.com/pharo-project/pharo-core/commit/6f112484d25578d02c2d745f… Author: Jenkins Build Server <board(a)pharo-project.org> Date: 2014-10-21 (Tue, 21 Oct 2014) Changed paths: M OpalCompiler-Core.package/IRAccess.class/definition.st R OpalCompiler-Core.package/IRAccess.class/instance/accessing/name.st R OpalCompiler-Core.package/IRAccess.class/instance/accessing/name_.st R OpalCompiler-Core.package/IRAccess.class/instance/accessing/store_.st R OpalCompiler-Core.package/IRAccess.class/instance/initialization/initialize.st R OpalCompiler-Core.package/IRAccess.class/instance/testing/isRead.st R OpalCompiler-Core.package/IRAccess.class/instance/testing/isStore.st M OpalCompiler-Core.package/IRBlockReturnTop.class/definition.st R OpalCompiler-Core.package/IRBlockReturnTop.class/instance/interpret/executeOn_.st A OpalCompiler-Core.package/IRBlockReturnTop.class/instance/visiting/accept_.st M OpalCompiler-Core.package/IRBuilder.class/definition.st A OpalCompiler-Core.package/IRFix.class/README.md A OpalCompiler-Core.package/IRFix.class/definition.st A OpalCompiler-Core.package/IRFix.class/instance/initialize/initialize.st A OpalCompiler-Core.package/IRFix.class/instance/private/convertRet_forSeq_.st A OpalCompiler-Core.package/IRFix.class/instance/private/convertStorePop_forSeq_.st A OpalCompiler-Core.package/IRFix.class/instance/visiting/visitInstruction_.st A OpalCompiler-Core.package/IRFix.class/instance/visiting/visitPop_.st A OpalCompiler-Core.package/IRFix.class/instance/visiting/visitReturn_.st A OpalCompiler-Core.package/IRFix.class/instance/visiting/visitSequence_.st M OpalCompiler-Core.package/IRInstVarAccess.class/definition.st M OpalCompiler-Core.package/IRInstVarAccess.class/instance/accessing/index.st M OpalCompiler-Core.package/IRInstVarAccess.class/instance/accessing/index_.st R 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OpalCompiler-Tests.package/IRPrinterTest.class/instance/testing/testRemoteTempNested.st M OpalCompiler-Tests.package/IRPrinterTest.class/instance/testing/testReturnTop.st M OpalCompiler-Tests.package/IRPrinterTest.class/instance/testing/testStoreTemp.st A OpalCompiler-Tests.package/IRVisitorTest.class/README.md A OpalCompiler-Tests.package/IRVisitorTest.class/definition.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/helper/interpret_.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testDup.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testInstVar.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testJumpAheadTo.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testJumpAheadToIf.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testJumpBackTo.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testLiteralArray.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testLiteralVariableClass.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testPopTop.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testPushClosureCopyNoCopied.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testPushConsArray.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testPushNewArray.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testPushSelf.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testPushTempArgument.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testPushTempTemp.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testPushThisContext.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testRemoteTemp.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testRemoteTempNested.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testReturnTop.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testSendSuper.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testStoreIntoVariable.st A OpalCompiler-Tests.package/IRVisitorTest.class/instance/testing/testStoreTemp.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - scripts/script316.st A ScriptLoader40.package/ScriptLoader.class/instance/pharo - updates/update40316.st M ScriptLoader40.package/ScriptLoader.class/instance/public/commentForCurrentUpdate.st Log Message: ----------- 40316 14235 IRInterpreter should be replaced by IRVisitor https://pharo.fogbugz.com/f/cases/14235 http://files.pharo.org/image/40/40316.zip

1 0

[pharo-project/pharo-core]
by GitHub Oct. 21, 2014

Oct. 21, 2014

Branch: refs/tags/40316 Home: https://github.com/pharo-project/pharo-core

1 0

Ring
by Roberto Minelli Oct. 21, 2014

Oct. 21, 2014

Hi guys, I havenât been programming for the last few weeksâ¦ I just discovered that Ring is no longer part of the image. I am wondering if it has been replaced by a new model or it just disappeared. Cheers, Roberto

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Re: [Pharo-dev] [squeak-dev] Image Segment semantics and weakness
by Mariano Martinez Peck Oct. 21, 2014

Oct. 21, 2014

Just a quick note I would like to share.... For my PhD, I did investigate ImageSegment very very deeply: http://dl.acm.org/citation.cfm?id=2076323 http://www.slideshare.net/MarianoMartinezPeck/2010-smalltalkspeckobject-swa… I didn't want to write Fuel just because. I took quite a lot of time to understand how ImageSegment primitives worked. From that effort, I remember a few conclusions: 1) I found only few users of ImageSegment 2) The few users I found, were NOT using the real purpose of ImageSegment, that is, object swapping. It was used instead as an object serializer. For that, they use #writeForExportOn: which ended up using SmartRefStream for the rest of the objects. 3) I noticed I could achieve the same performance or even better with an OO serializer built at the language side, with all the benefits this means. Of course, having Cog helped here.... In the Fuel paper: http://rmod.lille.inria.fr/archives/papers/Dias12a-SPE-Fuel.pdf you can find some benchmark comparison agains IS. Also in my PhD: http://rmod.lille.inria.fr/archives/phd/PhD-2012-Martinez-Peck.pdf Cheers, On Mon, Oct 20, 2014 at 9:56 PM, <jvuletich(a)dc.uba.ar> wrote: > Hi Eliot, > > > Hi All, > > > > I want to check my understanding of reference semantics for image > > segments as I'm close to completing the Spur implementation. > Specifically > > the question is whether objects reachable only through weak pointers > > should > > be included in an image segment or not. > > > > Remember that an image segment is created from the transitive closure of > > an > > Array of root objects, the *segment roots*. i.e. we can think of an image > > segment as a set of objects created by tracing the object graph from the > > segment roots. > > > > The segment always includes the segment roots. Except for the roots, > > objects are excluded from the segment that are also reachable form the > > roots of the system (the *system roots*, effectively the root > environment, > > Smalltalk, and the stack of the current process). > > > > Consider a weak array in the transitive closure that is not reachable > from > > the system roots, and hence should be included in the segment. Objects > > referenced from that weak array may be in one of three categories > > > > - reachable from the system roots (and hence not to be included in the > > segment) > > - *not* reachable form the system roots, but reachable from the segment > > roots via strong pointers (and hence to be included in the segment) > > - *not* reachable form the system roots, *not* reachable from the segment > > roots via strong pointers > > > > Should this last category be included or excluded from the segment? I > > think that it makes no difference, and excluding them is only an > > optimization. The argument is as follows. Imagine that immediately > after > > loading the image segment there is a garbage collection. That garbage > > collection will collect all the objects in the last category as they are > > only reachable from the weak arrays in the segment. Hence we are free to > > follow weak references as if they are strong when we create the image > > segment, leaving it to subsequent events to reclaim those objects. > > > > An analogous argument accounts for objects reachable from ephemerons. Is > > my reasoning sound? > > -- > > best, > > Eliot > > > > > > I think you are right. But there is a risk of somehow, someone, gaining a > strong reference to the object after the image segment was created, > breaking our invariants when the segment is loaded again. > > An object might be (not reachable / strongly reachable / weakely > reachable) from system roots and / or segment roots. This gives us 9 > possibilities. > Six of them are easy (and I'll not go into them). The other three are > tricky: > > a- Not reachable from system roots. Weakely reachable from segment roots. > Do not include them. It is best to run a GC before building the image > segment, to get rid of them (run termination, etc). This is to avoid the > risk of the object gaining somehow a strong reference after the segment is > built, making the segment miss the weak ref to it. Doing this way would > also mean that any objects affected by termination would be consistent, > both in the image and in the segment. > > b- Weakely reachable from system roots. Weakely reachable from segment > roots. > Do not include them. If the object manages to survive by gaining a strong > ref from the system roots, the weak ref will be repaired on segment load > (Am I right on this?) If the original object was included in the segment, > then on segment load it would point to a duplicate object that is about to > be collected (and maybe terminated?) In any case, doing this way would also > mean that any objects affected by termination would be consistent, both in > the image and in the segment. > > c- Weakely reachable from system roots. Strongly reachable from segment > roots. > Do include them. It seems reasonable to run a GC and get rid of them after > unloading the segment, to avoid the risk of the object gaining somehow a > strong ref in the image, and being duplicated on segment load. But doing as > I say means that we would be loading into the image an object that was > already terminated, although in the state it had before running > termination. Not really sure if this is ok. There could be some risk of > objects in the segment being in some pre-termination state, with some > objects in the image being in some after-termination state. In any case, > this would suggest bad design... So perhaps it makes sense to throw an > exception in these cases? > > I hope this rant is of use. > > Cheers, > Juan Vuletich > > > > -- Mariano http://marianopeck.wordpress.com

2 1