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RPySOM and RTruffleSOM are reunited as PySOM

This code base is now merged into PySOM, together with what was RPySOM.

Please head over to https://github.com/SOM-st/PySOM for the latest code.

Below old README.md

RTruffleSOM - The Simple Object Machine Smalltalk combining Self-Optimizing Interpreters with Meta-Tracing

Introduction

SOM is a minimal Smalltalk dialect used to teach VM construction at the Hasso Plattner Institute. It was originally built at the University of Århus (Denmark) where it was used for teaching and as the foundation for Resilient Smalltalk.

In addition to RTruffleSOM, other implementations exist for Java (SOM, TruffleSOM), C (CSOM), C++ (SOM++), Python (PySOM), and Squeak/Pharo Smalltalk (AweSOM).

A simple Hello World looks like:

Hello = (
  run = (
    'Hello World!' println.
  )
)

This repository contains a RPython-based implementation of SOM, including SOM's standard library and a number of examples. Please see the main project page for links to other VM implementations.

To checkout the code:

git clone https://github.com/SOM-st/RTruffleSOM.git

RTruffleSOM's tests can be executed with:

$ ./som.sh -cp Smalltalk TestSuite/TestHarness.som

A simple Hello World program is executed with:

$ ./som.sh -cp Smalltalk Examples/Hello/Hello.som

To compile RTruffleSOM, a recent PyPy is recommended and the RPython source code is required. The source distribution of PyPy 5.1 can be used like this:

wget https://bitbucket.org/pypy/pypy/downloads/pypy-5.1.1-src.tar.bz2
tar xvf pypy-5.1.1-src.tar.bz2
export PYPY_DIR=`pwd`/pypy-5.1.1-src/

Information on previous authors are included in the AUTHORS file. This code is distributed under the MIT License. Please see the LICENSE file for details.

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A variant of RPySOM, combining ideas from Truffle and TruffleSOM with RPython's metatracing

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