https://github.com/samdphillips/onyx-rb

Onyx Smalltalk
https://github.com/samdphillips/onyx-rb

programming-language ruby smalltalk

Last synced: about 1 month ago
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Onyx Smalltalk

• Host: GitHub
• URL: https://github.com/samdphillips/onyx-rb
• Owner: samdphillips
• License: bsd-3-clause
• Created: 2012-06-03T20:53:55.000Z (over 12 years ago)
• Default Branch: master
• Last Pushed: 2023-12-17T23:29:08.000Z (about 1 year ago)
• Last Synced: 2024-10-16T03:03:48.293Z (3 months ago)
• Topics: programming-language, ruby, smalltalk
• Language: Ruby
• Homepage:
• Size: 218 KB
• Stars: 2
• Watchers: 3
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# onyx #

**Latest iteration of this is at https://github.com/samdphillips/onyx**

onyx has been the name for various Smalltalk implementations that I have

worked on.  This version is written in Ruby, and someday will be written

in a lower level language (if I ever get that far.)

Currently onyx is implemented as a [trampolining interpreter][tramp]

with [delimited continuations][delim] and a form of [continuation

marks][cmarks].  There is a small "standard library."

Eventually onyx will have exceptions, [traits][traits],

and [contracts][contracts].

Additionally some other pragmatics things like FFI, JIT, and all those

other expected bits of runtime infrastructure.

## Differences from "Smalltalk" ##

Here are some of the difference from other Smalltalks that are planned

on being added:

- currently no IO system

- currently not vm based, no bytecode

- currently no browser or other development tools

Here are some of the differences from other Smalltalks that most like

won't be added:

- Sequenced Collections are indexed starting at zero and not one.

- methods do not implicitly return self.  Methods return the last

  expression evaluated similar to Scheme and Ruby.

- no image file

- probably something that I've forgotten besides the obvious ...

## Running Tests ##

A few different test systems are set up.

    $ rspec

    $ ruby -Ilib -I. t/tests.rb

    $ ruby -Ilib -r onyx -e main src/tests/tester.ost \

        src/tests/ordered_collection.ost \

        src/tests/stream.ost

[tramp]:     http://www.cs.indiana.edu/hyplan/sganz/publications/icfp99/paper.pdf

[delim]:     http://www.ccs.neu.edu/racket/pubs/icfp07-fyff.pdf

[cmarks]:    http://www.ccs.neu.edu/racket/pubs/dissertation-clements.pdf

[contracts]: http://www.ccs.neu.edu/racket/pubs/thesis-robby.pdf

[traits]:    http://scg.unibe.ch/archive/papers/Scha03aTraits.pdf