rkh/Reak

---

rkh/Reak.json

{
  "createdAt": "2011-01-19T12:13:56Z",
  "defaultBranch": "master",
  "description": "Smalltalk on Rubinius",
  "fullName": "rkh/Reak",
  "homepage": "",
  "language": "Ruby",
  "name": "Reak",
  "pushedAt": "2011-09-14T20:12:59Z",
  "stargazersCount": 56,
  "topics": [],
  "updatedAt": "2025-07-16T00:40:04Z",
  "url": "https://github.com/rkh/Reak"
}

Smalltalk implementation running on Rubinius.

WARNING: Not usable, yet.

Status:

• Parser is nearly complete (ANSI Smalltalk is complete, but no syntax for class/method definition yet)
• Compiler is incomplete
• Standard library and core classes are near to non-existent

Setup:

rvm use rbx
gem install bundler
bundle install

Example usage:

~/Workspace/reak (git: master) ☃〠 bin/reak
st> 1 - (2 - 1) > -1
true
st> 1 > 2 ifTrue: [ self halt ] ifFalse: [ nil isNil respondTo: #doesNotUnderstand: ]
true
st> 1 rubyPerform: #to_s
a RubyObject("1")
st> 1 - 1; + "yes, this is valid smalltalk" 1
2

This implementation is not image based nor does it have a built-in IDE. So, if you are looking for a classic Smalltalk, you might better be looking somewhere else. Also, it is rather experimental at the moment.

Parts of the compiler have been stolen from, I mean inspired by Brian Ford’s Poison.