Chez Scheme is now free

#1

Post by jordigh » Tue, Apr 26, 2016, 3:11 PM UTC

Chez Scheme is now free
github.com

Re: Chez Scheme is now free

#2

Post by FraaJad » Tue, Apr 26, 2016, 3:26 PM UTC

IIRC, this was a high performance scheme developed at Indiana University that was closed source for a long time.

Good on Cisco for open sourcing it.

I'm interested to hear what regular scheme programmers feel about this news.

Re: Chez Scheme is now free

#3

Post by xenophonf » Tue, Apr 26, 2016, 3:27 PM UTC

It's about time! Although I'm curious---how did Cisco end up owning it?

Re: Chez Scheme is now free

#4

Post by dschiptsov » Tue, Apr 26, 2016, 3:32 PM UTC

This is good news. The code is worth reading. It is as good as MIT Scheme, and less esoteric than Gambit.)

Re: Chez Scheme is now free

#5

Post by webkike » Tue, Apr 26, 2016, 3:32 PM UTC

Making fast scheme interpreters is something I always come back to, a timeless exercise that makes for a great way to decompress over a week (wow I'm a nerd). I'm excited to find some nuggets of micro-optimized gold!

Re: Chez Scheme is now free

#6

Post by j-pb » Tue, Apr 26, 2016, 3:35 PM UTC

webkike wrote: post #5

Making fast scheme interpreters is something I always come back to, a timeless exercise that makes for a great way to decompress over a week (wow I'm a nerd). I'm excited to find some nuggets of micro-optimized gold!

Compiler. Chez scheme is compiled with a nano-pass compiler. https://www.youtube.com/watch?v=Os7FE3J-U5Q

Re: Chez Scheme is now free

#7

Post by brianobush » Tue, Apr 26, 2016, 3:35 PM UTC

xenophonf wrote: post #3

It's about time! Although I'm curious---how did Cisco end up owning it?

Re: Chez Scheme is now free

#8

Post by hga » Tue, Apr 26, 2016, 3:41 PM UTC

FraaJad wrote: post #2

IIRC, this was a high performance scheme developed at Indiana University that was closed source for a long time. Good on Cisco for open sourcing it. I'm interested to hear what regular scheme programmers feel about this news.

And aside from the JVM implementations and some works in progress the last time I checked, the only one with native instead of green threading.

Re: Chez Scheme is now free

#9

Post by webkike » Tue, Apr 26, 2016, 3:43 PM UTC

j-pb wrote: post #6

webkike wrote: post #5

Making fast scheme interpreters is something I always come back to, a timeless exercise that makes for a great way to decompress over a week (wow I'm a nerd). I'm excited to find some nuggets of micro-optimized gold!

Compiler. Chez scheme is compiled with a nano-pass compiler. https://www.youtube.com/watch?v=Os7FE3J-U5Q

Compiler what? I simply said that I enjoyed writing fast scheme interpreters.

Re: Chez Scheme is now free

#10

Post by Johnny_Brahms » Tue, Apr 26, 2016, 3:44 PM UTC

Looking forward to having this integrated in geiser/emacs. I worked with chez recently, and it is really a high quality scheme implementation.