Squeak-dev November 2007

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142 participants
155 discussions

About SqueakSource 2
by Esteban Lorenzano 21 Nov '07

21 Nov '07

Hi all,I wonder what is the status of SqueakSource 2 package in squeaksource... is it operational? if so, what are the dependencies? I tried to load it this afternoon and fail miserably :( Thanks, Esteban -- "Querer es suscitar las paradojas" Camus. El míto de Sísifo.

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What would Squeak be like without non-local returns
by Rob Withers 21 Nov '07

21 Nov '07

I'll just throw this out and see what turns up. As you have probably heard, I am toying with adding eventual refs to Squeak. Unfortunately, they don't play well with non-local returns. Igor and I had been discussing what could be done with methods having non-local returns adn it is looking nasty. So I thought to look at another piece of the puzzle and question its existence. How important is non-local return to Squeak? What would Squeak look like without it? So I thought of the first use of it, detecting an object in a collection. Here is #detect:ifNone: with non-local return: detect: aBlock ifNone: exceptionBlock self do: [:each | (aBlock value: each) ifTrue: [^ each]]. ^ exceptionBlock value and here is a version without non-local return: detectNoNonLocalReturn: aBlock ifNone: exceptionBlock | foundElement index each | index := 1. [foundElement isNil and: [index <= self size]] whileTrue: [ (aBlock value: (each := self at: index)) ifTrue: [foundElement := each]. index := index + 1]. ^ foundElement isNil ifTrue: [exceptionBlock value] ifFalse: [foundElement]. Hopefully someone can do better. As it stands it is much worse and I just don't know how to program in Squeak without non-local returns. It feels like there is a missing helper method in there or something. I don't know. At the point of detection we know we want to return that thing and the rest of this mathod just transfers it down to the end of the method. Noise. Tell me what you think! Cheers, Rob

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Remotely evaluate bytecode
by Bergel, Alexandre 21 Nov '07

21 Nov '07

Dear Squeakers, I was wondering whether there has been some attempts in dispatching bytecode instructions to several virtual machine. I am interested in having a program executed on a set of virtual machines in a completely transparent manner for the programmer. What would be a Squeak for multi-core cpu? Any links/url/papers? Regards, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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SystemTracer on squeaksource
by Mathieu Suen 21 Nov '07

21 Nov '07

Hi, I have taken the SystemTracer from SqueakMap and put it on squeaksource. http://www.squeaksource.com/SystemTracer2.html SystemTracer is package originally written by Ted Kaehler. If you want more information: http://wiki.squeak.org/squeak/2315 You can use it on 3.9 and 3.10. Mth

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Re: Re: Squeak license situation
by Alexander Lazarevic 21 Nov '07

21 Nov '07

> dns: methods by David N. Smith Is this the same David as in: http://groups.google.de/group/comp.lang.smalltalk/msg/1c8d41a75d389ea7 ----- original Nachricht -------- Betreff: Re: Squeak license situation Gesendet: Mi, 21. Nov 2007 Von: tim Rowledge<tim(a)rowledge.org> > > On 20-Nov-07, at 10:23 PM, Karl wrote: > >> > > We could list the number of methods these people have changed, some > > maybe just changed one or two, then it would be faster to just > > reimplement the method under the right license. > > We can do better than that. Andrew derived the list of methods > associated with initials that appear to be related to people that have > not signed and returned the license agreement. > --- original Nachricht Ende ----

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Giving a script to squeak
by Damien Cassou 21 Nov '07

21 Nov '07

Hi, I can't pass a script to squeak and get it executed: $ cat test.sq Transcript cr; show: 'Hello, world'. $ squeak Squeak3.9-final-7067.image test.sq & Results in: CodeLoader(Object)>>error: Receiver: a CodeLoader Arguments and temporary variables: aString: 'No content to install' Receiver's instance variables: baseURL: '' sourceFiles: an Array(a HTTPDownloadRequest) segments: nil publicKey: nil CodeLoader>>installSourceFile: Receiver: a CodeLoader Arguments and temporary variables: aStream: nil contents: nil trusted: nil Receiver's instance variables: baseURL: '' sourceFiles: an Array(a HTTPDownloadRequest) segments: nil publicKey: nil [] in CodeLoader>>installSourceFiles {[:req | self installSourceFile: req contentStream]} Arguments and temporary variables: req: a HTTPDownloadRequest Array(SequenceableCollection)>>do: Receiver: an Array(a HTTPDownloadRequest) Arguments and temporary variables: aBlock: [] in CodeLoader>>installSourceFiles {[:req | self installSourceFile: r...etc... index: 1 indexLimiT: 1 Receiver's instance variables: an Array(a HTTPDownloadRequest) --- The full stack --- CodeLoader(Object)>>error: CodeLoader>>installSourceFile: [] in CodeLoader>>installSourceFiles {[:req | self installSourceFile: req contentStream]} Array(SequenceableCollection)>>do: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - CodeLoader>>installSourceFiles ProjectLauncher>>startUpAfterLogin ProjectLauncher>>startUp [] in AutoStart class>>startUp: {[launcher startUp]} ... -- Damien Cassou

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SqueakElib Chat Client
by Rob Withers 20 Nov '07

20 Nov '07

Ok, folks. I'd like to invite you to download and play with my Chat Client. I got the server running on my home machine and I believe it is reachable from the net. For now it is Windows only, unless someone can build a VM for other platforms from the supplied image. You can get the zip file and instructions from here: http://wiki.squeak.org/squeak/6011 Enjoy! Here are the instructions, reproduced: Instructions for the Chat Client Note The server is running on my machine and I will be gone for a week after catching a flight in about 3 hours. Hopefully it will work (fingers crossed). If not, I will fix it when I get back and we can try again. Installation After unzipping the zip file, run the image with the supplied VM. Configure The tricky part is setting up the networking code so that others can connect to you. Every image is a server, in this peer to peer system. If your machine is behind a router, then you will need to specify the external ip address to your router, and make your machine the DMZ. I don't currently support host names, but that is next on the list. To configure your network settings, there is a #squeakelib page in the Preferences Browser. Go there and there are three settings. Automatically update your ip address. This is useful if you are directly connected to the internet and use DHCP. Every time the image starts up, it will recalibrate to the current ip address. Don't use this if you are manually setting your ip address, below. Manually set your ip address. If you are behind a router, find out it's external ip address and enter it here. This way, references to objects that you send out will be resolved to the router. Also make your router pass through to your machine as the DMZ. Manually set your port. This will override the default, which is 11061. Running Chat At the top of the window, there is a button which says: 'SqueakElib Chat Launcher'. Click this button. It will prompt you for a nickname. Then the launcher window will open. There are two List panes. The top one is for other users. If luck is with us all, you will see a list of the other users signed on, in the top pane. You can right click and select 'open chat' to start chatting with the other user. The bottom pane is for multiway chats. You can create a multiway chat and start chatting. Or you can select an existing multiway chat and join it and start chatting. Hacking There are ways to be malicious. I would ask that you explore, but not try and change the system. Enjoy!!

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Can I know when #startUp is happening for the first time?
by Rob Withers 20 Nov '07

20 Nov '07

I am having a bunch of network issues with my servers (every image is a server) and I need to bounce the connHandler when I startup the first time. Is there a way to know it is the first time and not just another image save? thanks, Rob

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How to get SystemTracer2
by Mathieu Suen 20 Nov '07

20 Nov '07

Hi, From Squeakmap there is 2 version of SystemTracer: SystemTracer2 SystemTracerV2 SystemTracer2 is no longer available. Is it still maintain or is SystemTracerV2 replace it? Thanks Mth

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Looking for NCUpdatingNumericStringMorph class
by Edgar J. De Cleene 20 Nov '07

20 Nov '07

Folks: I redoing FunSqueak , testing each package with high standards Ralph set for regular image. I very thanks David kindness for updating his fine package Keymapping. Now I found last Connectors made funny troubles. On Undeclared is NCUpdatingNumericStringMorph class. Any have it in his computer ?. Please send me. Very thanks. Edgar

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