.. image:: https://app.fossa.io/api/projects/git%2Bgithub.com%2Fkvakvs%2FErlangRT.svg?type=shield :target: https://app.fossa.com/projects/git%2Bgithub.com%2Fkvakvs%2FErlangRT?ref=badge_shield

ErlangRT - Runtime

Erlang Replacement Therapy. This is an attempt to make Erlang runtime (BEAM emulator) in Rust. This is not the first attempt so I kinda know what I'm doing.

Progress to the Proof of Concept

  • Term library 80% (remaining 80% are in progress)
  • External Term Format (decoder 70%, encoder 0%)
  • BEAM Loader - mostly done
  • VM and processes 40%
  • VM loop and opcodes 45% (74 of 168)
  • Some basic BIFs <15%
  • Binaries, sub-binaries, binary heap, binary opcodes: <20%

.. figure:: http://imgur.com/H5qypZG.png :scale: 50% :alt: Trying to run init:boot/1

Tests in priv/test2.erl work. Running make test tries to run init:boot/1 and produces the output above.


* The source assumes that you have Erlang OTP 22+ source in a Git submodule in ``otp/``,
  and the stdlib and preload BEAM files are compiled and ready. Makefile takes care of it.
* Install latest **Rust** and **Cargo** via `Rustup <http://doc.crates.io/>`_
* Run ``make`` and with the magic of Bash autocomplete see which targets it
  supports. You might like:
    * ``make run`` - runs the executable with test args, whatever set by the developer,
      do not expect it to show any magical tricks;
    * ``make doc`` - builds doc pages in ``target/doc/erlang_rt/``
    * ``make test`` - runs the tests
    * ``make build`` and ``make build-rel`` - builds but does not run the debug and
      the release target respectively

Currently the emulator expects to have preloaded BEAM modules from OTP 22+ located in `otp/`
Git submodule (Makefile takes care of it).

Editing and Code Navigation

I am using and strongly recommend IntelliJ IDEA CE (free version) with IntelliJ-Rust plugin (available in repositories tab inside IntelliJ).

Reference Material

* `BEAM Wisdoms <http://beam-wisdoms.clau.se/>`_ (I run this one)
* `The BEAM book <https://github.com/happi/theBeamBook>`_
  (I am also one of the editors there)



License Inspection

.. image:: https://app.fossa.io/api/projects/git%2Bgithub.com%2Fkvakvs%2FErlangRT.svg?type=large
    :target: https://app.fossa.com/projects/git%2Bgithub.com%2Fkvakvs%2FErlangRT?ref=badge_large


Erlang Replacement Therapy. Another attempt to make Erlang runtime (BEAM emulator) in Rust. Good news: I know what to do. Bad news: I have no clue how to Rust

Erlangrt Info

⭐ Stars 545
🔗 Source Code github.com
🕒 Last Update 5 months ago
🕒 Created 5 years ago
🐞 Open Issues 7
➗ Star-Issue Ratio 78
😎 Author kvakvs