Squeak-dev July 2016

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224 discussions

The Trunk: System-eem.835.mcz
by commits＠source.squeak.org 06 Jul '16

06 Jul '16

Eliot Miranda uploaded a new version of System to project The Trunk: http://source.squeak.org/trunk/System-eem.835.mcz ==================== Summary ==================== Name: System-eem.835 Author: eem Time: 5 July 2016, 6:13:25.980763 pm UUID: 44354df1-cecb-414c-a705-daa84b7388dd Ancestors: System-eem.834 Fix reading methods from DataStreams on Spur. Old code used pre-Spur numLits header format, and was not 64-bit aware. =============== Diff against System-eem.834 =============== Item was changed: ----- Method: DataStream>>readMethod (in category 'write and read') ----- readMethod "PRIVATE -- Read the contents of an arbitrary instance. ASSUMES: readDataFrom:size: sends me beginReference: after it instantiates the new object but before reading nested objects. NOTE: We must restore the current reference position after recursive calls to next. Let the instance, not the class read the data. " | instSize refPosn newClass className xxHeader nLits byteCodeSizePlusTrailer newMethod lits | instSize := (byteStream nextNumber: 4) - 1. refPosn := self getCurrentReference. className := self next. newClass := Smalltalk at: className asSymbol. xxHeader := self next. "nArgs := (xxHeader >> 24) bitAnd: 16rF." "nTemps := (xxHeader >> 18) bitAnd: 16r3F." "largeBit := (xxHeader >> 17) bitAnd: 1." + nLits := xxHeader bitAnd: 16r7FFF. + byteCodeSizePlusTrailer := instSize - (newClass instSize "0") - (nLits + 1 * Smalltalk wordSize). - nLits := (xxHeader >> 9) bitAnd: 16rFF. - "primBits := ((xxHeader >> 19) bitAnd: 16r600) + (xxHeader bitAnd: 16r1FF)." - byteCodeSizePlusTrailer := instSize - (newClass instSize "0") - (nLits + 1 * 4). newMethod := newClass + newMethod: byteCodeSizePlusTrailer + header: xxHeader. - newMethod: byteCodeSizePlusTrailer - header: xxHeader. self setCurrentReference: refPosn. "before readDataFrom:size:" self beginReference: newMethod. lits := newMethod numLiterals + 1. "counting header" 2 to: lits do: [:ii | newMethod objectAt: ii put: self next]. + lits*Smalltalk wordSize+1 to: newMethod basicSize do: - lits*4+1 to: newMethod basicSize do: [:ii | newMethod basicAt: ii put: byteStream next]. "Get raw bytes directly from the file" self setCurrentReference: refPosn. "before returning to next" + ^newMethod! - ^ newMethod!

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isKindOf: in Morphic code...
by Eliot Miranda 05 Jul '16

05 Jul '16

Hi All, Hi Marcel, when I see code like this, and there's a lot of it in Morphic, !Flaps class methodsFor: 'testing' stamp: 'mt 5/17/2016 14:17'! anyFlapsVisibleIn: aWorld aWorld submorphsDo: [:m | (m isKindOf: FlapTab) ifTrue: [^ true]]. ^ false! ! I think this is performance thrown on the floor (isKindOf: is awfully slow, especially in huge hierarchies like Morphic, and bad design, restricting one to a concrete class). And I think that Morph provides a perfect place to put an extension that doesn't pollute Object. So I would like to see anyFlapsVisibleIn: aWorld aWorld submorphsDo: [:m| m isFlapTab ifTrue: [^true]]. ^ false! ! with the emphasis on isFlapTab ;-) _,,,^..^,,,_ best, Eliot

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invisible unselectable morph covering all my other morphs?
by Eliot Miranda 05 Jul '16

05 Jul '16

Hi Morphic Mavens, anyone out there able to help me unstick a very important project that appears to have some large morph taking all mouse clicks away from any other morph in the project? Anyone seen this and have a way out? When I hit the Halos mouse button on a specific windows or menu the halos come up all around the entire screen. Attempts to select the halo fail. Hitting the halo button a second time dismisses the halo. I can enter and exit the project, but once inside cannot interact with existing windows. I can create new windows, but these are also unresponsive. _,,,^..^,,,_ best, Eliot

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A $140 pc for running Squeak
by tim Rowledge 05 Jul '16

05 Jul '16

I just got my pi-top CEED (don’t ask me what that stands for…) and after a few minutes setup - inserting the SD card into the provided Pi3, connecting up a couple of cables, inserting the little plastic-magnet ‘feet’ etc - I was up and running. What on earth is a pi-top CEED you ask? Well, think of a small iMac all-in-one with a quite decent 14” lcd and a pi3 inside. Add your own spare mouse/kbd, plug together, insert power plug (psu provided) and press the Magic Button. A moment later you have … what? Err, this is a bit odd looking… ah, escape to a normal desktop and all is well. Run some updating to get stuff sorted out a little (the Scratch version definitely needs updating for example) and all is well. It’s a Pi3 in a nice case with a nice display, a beefy power supply, a neat way of providing space for some add-ons, a proper power switch and a slightly odd OS wrapper. See www.pi-top.com for more details. For US$140! OK, so maybe you have to spend $20 on a mouse & keyboard too. And perhaps you want their speaker unit for another $20. You can get just the lcd/case/pus for $99 if you already have a spare Pi. Given that the Pi 7” touch lcd is $70 on its own, this seems a steal to me. I’m planning to use my three in Scratch classes over the summer. tim -- tim Rowledge; tim(a)rowledge.org; http://www.rowledge.org/tim All the simple programs have been written, and all the good names taken.

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NuScratch source on SqueakMap
by tim Rowledge 05 Jul '16

05 Jul '16

There is now a SM entry pointing to a SqueakSource copy of the current NuScratch as per the Raspberry Pi. It is a rather substantial collection of bug fixes, performance improvements, tidy-ups, speed-ups etc to the original Scratch developed by the MIT team. Project files read and saved are fully compatible with the original system. It runs on modern Squeak systems - I use a 5.0 with updates and it is likely that it won’t run perfectly on anything earlier than say #15852 because some time around then the help balloon stuff changed. I use a Cog/Spur system and make no representation about how well it might work on a non-spur or non-Cog system - I just don’t know and don’t really care. On a RaspberryPi3 it runs large game-like Scratch programs about twice as fast as the original Scratch (a 2.8-ish image on a contemporary interpreter) runs on a modest mac laptop. Or to put it another way, it’s about a gazillion times faster than original Scratch on the same Pi. The licensing remains as per the Scratch Source Code License (google it). You will need to download and unzip a copy of http://download.scratch.mit.edu/source-code/ScratchSkin1.4.zip *before* attempting to install the package. It does *not* include the RaspberryPi specific GPIOServer code; that will appear in a separate package soon. That provides a way to drive al sorts of fun add-on hardware from Scratch - and indeed the lower level driver code for that provides a general Squeak access to the gpio pins and add-ons. tim -- tim Rowledge; tim(a)rowledge.org; http://www.rowledge.org/tim Useful Latin Phrases:- Fac ut vivas. = Get a life.

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Join Squeak team on Slack
by sebastian＠flowingconcept.com 04 Jul '16

04 Jul '16

Hi there, I'm writing here to let you know that now you can join the Squeak team in Slack Here is the link to get you in: https://squeak-slack-sign-in.herokuapp.com/ And in case you are wondering why this millennial-friendly app is worth trying take a look here: https://www.youtube.com/watch?v=B6zVzWU95Sw TL; didn't watch: Some of us like to chat and "think-loud" together and this is a great opportunity to do more of that while keeping subjects in relevant channels with access from desktop and mobile (with nice notifications). Some channels we have there: #general #board #vm #context #SqueakJS #webteam #... <- your project? Please invite other smalltalkers to join too! See you there! Seb o/ -- View this message in context: http://forum.world.st/Join-Squeak-team-on-Slack-tp4904863.html Sent from the Squeak - Dev mailing list archive at Nabble.com.

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Daily Commit Log
by commits＠source.squeak.org 03 Jul '16

03 Jul '16

Changes to Trunk (http://source.squeak.org/trunk.html) in the last 24 hours: http://lists.squeakfoundation.org/pipermail/packages/2016-July/068251.html Name: Network-bp.178 Ancestors: Network-ul.177 fix endless recursion on parsing e-mail addresses including an ampersand ============================================= http://lists.squeakfoundation.org/pipermail/packages/2016-July/068252.html Name: NetworkTests-bp.42 Ancestors: NetworkTests-eem.41 test for e-mail address with ampersand =============================================

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Running headless on a Mac
by Frank Shearar 03 Jul '16

03 Jul '16

OK, so I've run out of patience in my flailing around. All I want is to run a headless image on a Mac (so I can unbreak the SqueakTrunk-OSX job, which _used_ to work). How? Do I say "-headless"? ("could not find module vm-display-X11") "-vm-display-null -headless"? ("squeak: could not find any sound driver") "-vm-sound-null -vm-display-null -headless"? ("could not find module vm-sound-null") I don't mind whether I use Cog or Interpreter, as long as I can just get an image running tests. Thanks! frank

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Problems creating a fresh trunk image (on Mac)
by Bernhard Pieber 03 Jul '16

03 Jul '16

Dear Squeakers, I want to make myself a pristine trunk image and ran into a problem. I am on a Mac running OS X El Capitan 10.11.5. Here is what I did: 1. Created a new directory 2. Downloaded the latest stable CogSpur VM [1] 3. Downloaded the latest sources file [2] 4. Downloaded Squeak5.1-15113 image [3] 5. Dragged the image onto the VM 6. Opened a transcript 7. Did „Update Squeak“ from the Squeak menu The image updates to #16084 but then a debugger opens: MessageNotUnderstood: WeakArray>>hand When I click on some of the stack frames, I get syntax errors and the code looks garbled. I tried it three times. The same debugger comes always up, however the code is garbled in a different way. Looks like sources or changes file corruption, no? Any help is greatly appreciated. Is there a better way to create a current trunk image? Cheers, Bernhard [1] http://www.mirandabanda.org/files/Cog/VM/VM.r3732/CogSpur.app-16.21.3732.tgz [2] http://ftp.squeak.org/5.0/SqueakV50.sources.zip [3] http://ftp.squeak.org/5.1alpha/Squeak5.1-15113.zip

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The Trunk: NetworkTests-bp.42.mcz
by commits＠source.squeak.org 03 Jul '16

03 Jul '16

Bernhard Pieber uploaded a new version of NetworkTests to project The Trunk: http://source.squeak.org/trunk/NetworkTests-bp.42.mcz ==================== Summary ==================== Name: NetworkTests-bp.42 Author: bp Time: 3 July 2016, 11:49:15.520702 am UUID: cd20a935-7da4-42d5-ac67-a9c6a1ef847b Ancestors: NetworkTests-eem.41 test for e-mail address with ampersand =============== Diff against NetworkTests-eem.41 =============== Item was changed: ----- Method: MailAddressParserTest>>testAddressesIn (in category 'tests') ----- testAddressesIn | testString correctAnswer | + testString := 'joe(a)lama.com, joe2(a)lama.com joe3(a)lama.com joe4 , Not an Address <joe5@address>, joe.(annoying (nested) comment)literal(a)[1.2.3.4], "an annoying" group : joe1@groupie, joe2@groupie, "Joey" joe3@groupy, "joe6"."joe8"@group.com;, Lex''s email account <lex>, foo+bar(a)baz.com romeo&juliet(a)shakespeare.uk'. - testString := 'joe(a)lama.com, joe2(a)lama.com joe3(a)lama.com joe4 , Not an Address <joe5@address>, joe.(annoying (nested) comment)literal(a)[1.2.3.4], "an annoying" group : joe1@groupie, joe2@groupie, "Joey" joe3@groupy, "joe6"."joe8"@group.com;, Lex''s email account <lex>, foo+bar(a)baz.com'. + correctAnswer := #('joe(a)lama.com' 'joe2(a)lama.com' 'joe3(a)lama.com' 'joe4' 'joe5@address' 'joe.literal(a)[1.2.3.4]' 'joe1@groupie' 'joe2@groupie' '"Joey"' 'joe3@groupy' '"joe6"."joe8"@group.com' 'lex' 'foo+bar(a)baz.com' 'romeo&juliet(a)shakespeare.uk') asOrderedCollection. - correctAnswer := #('joe(a)lama.com' 'joe2(a)lama.com' 'joe3(a)lama.com' 'joe4' 'joe5@address' 'joe.literal(a)[1.2.3.4]' 'joe1@groupie' 'joe2@groupie' '"Joey"' 'joe3@groupy' '"joe6"."joe8"@group.com' 'lex' 'foo+bar(a)baz.com') asOrderedCollection. self assert: ((MailAddressParser addressesIn: testString) = correctAnswer).!

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