Self-interest November 2015

self-interest@lists.selflanguage.org

7 participants
6 discussions

Quiet in Self land?
by Chris Double 07 Aug '16

07 Aug '16

It's been pretty quiet on this list, so I thought I'd start a conversation to see if the list is working. Anyone doing any interesting Self work? I sidelined my VNC client in Self for a bit due to getting busy in my day job but plan to get back to it soon and finish it off. It's pretty close. The missing part is mostly key handling. I'd like to tidy up my Android patches too and get them submitted so at least Intel android would work out of the box. What do people feel would make Self more viable as a fun project to hack on? -- http://www.bluishcoder.co.nz

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Video for interpreter
by Baltasar García Perez-Schofield 20 Nov '15

20 Nov '15

Some time ago I created an interpreter for an prototype-based, object-oriented programming language inspired by Self. I've recently created a video explaining how it works. Maybe you'd like to take a look: https://www.youtube.com/watch?v=lbwNbItWiLs -- baltasar

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Getting code out of Self
by Daniel Dyba 20 Nov '15

20 Nov '15

This is probably a silly question, but consider that I'm new to Self. How do you get code out of Self? What if I want to share it for others to download, say on Github? Do I share the entire VM or can I extract only what I need? If I can extract what I need, how do I load the shared code into a new VM? Sincerely, Mieczysław Daniel Dyba Senior Application Developer PennyMac LinkedIn: http://www.linkedin.com/in/danieldyba Github (Social Coding): https://github.com/dyba Twitter: @dyba <https://twitter.com/dyba>

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Native - second attempt...
by Russell Allen 18 Nov '15

18 Nov '15

Hi guys, A year or so ago , inspired by Igor Stasenko’s excellent work on NativeBoost in Squeak/Pharo, I did a ‘native’ package for Self. This added a new _RunNativeWith: primitive used roughly like this; machineCodeInByteVector _RunNativeWith: someByteVector With: anotherByteVector This worked fairly well but I realised it had two main problems. Firstly the garbage collection kept on moving the machineCodeInByteVector around. This meant that before we ran the code, we would have to remark it as executable, requiring a kernel call on each run. Secondly, keeping everything in byteVectors didn’t sit well with the existing ‘proxy’ tools. I’ve now pushed my second try at this to the ‘native2’ branch on Github. It is a handful of new primitives on proxy and fctProxy, which can be used roughly as; | p | p: fctProxy _AllocateBytes: 1000. “the proxy now points to a mmap-ed region of memory” p _LoadByteVector: machineCode AtOffset: 0. “copy across our compiled function” p _RunNativeWith: aByteVector Type: 0 With: aProxy Type: 1. “run. We have to tell the VM whether we’re passing it a byteVector or proxy, unfortunately. " As before, the machineCode is a compiled c function in the form: void fct(char*, char* …) There is a Self method which will take a short bit of c code, compile is and put in a byteVector for you, assuming you have cc on your system. All the primitives have IfFail: alternatives which should preferably be used. What’s missing is callbacks. I’m not sure how to do them, so if you have ideas then I’l be interested to hear them! I’m looking for something very simple and flexible so complexity can be kept on the Self side of things. Keep having fun, Russell

1 0

Bank account example on YouTube
by Russell Allen 16 Nov '15

16 Nov '15

Chris Double has thrown together a nice 10 minute bank account tutorial for people just coming to Self and has put it up on YouTube: https://www.youtube.com/watch?v=5Jhi5yN9S1o <https://www.youtube.com/watch?v=5Jhi5yN9S1o> It shows the mechanics of creating objects, adding methods and other slots, creating traits, moving slots, adding objects to ‘globals’ and more! If you’ve just arrived and are feeling lost and confused this might help… Cheers, Russell

3 2

OS X El Capitan
by Russell Allen 12 Nov '15

12 Nov '15

Hi all, By default the current version of Self on OS X installs a VM in /usr/bin This is now verboten in the latest OS X - the whole of /usr is locked off even to root So we will need to change to using /usr/local/bin I’d be interested in any other issued people are having with El Capitan… Cheers, Russell

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Self-interest November 2015