Libraries & Projects>Libraries

Lua - an ergonomic interface to Luerl, aiming to be the best way to use Luerl from Elixir

#lua#luerl
davydog187

davydog187

Lua - an ergonomic interface to Luerl, aiming to be the best way to use Luerl from Elixir

I wanted to announce the stable release of a project started at TV Labs, called Lua.

Features

  • ~LUA sigil for validating Lua code at compile-time
  • deflua macro for exposing Elixir functions to Lua
  • Improved error messages and sandboxing
  • Deep setting/getting variables and state
  • Excellent documentation and guides for working with Luerl

Lua the Elixir library vs Lua the language {: .info}

When referring to this library, Lua will be stylized as a link.

References to Lua the language will be in plaintext and not linked.

From the blog post

The first stable release of the Elixir library, Lua v0.1.0, has been released to hex.pm!

Lua is a library that allows you to execute arbitrary, sandboxed Lua programs directly on the BEAM VM. This is not embedding the C Lua runtime and compiler, but rather a complete implementation of Lua 5.3. This feat is made possible by the underlying Luerl library, which implements a Lua parser, compiler, and runtime, all in Erlang.

The Lua Elixir library extends the capabilities of the Luerl library, improving error messages and providing robust documentation.

Blog post
Documentation

5 comments
#lua
22 410 5

Most Liked

davydog187

davydog187

I have released version v0.2.0

[v0.2.0] - 2025-05-14

Changed

  • Any data returned from a deflua function, or a function set by Lua.set!/3 is now validated. If the data is not an identity value, or an encoded value, it will raise an exception. In the past, Lua and Luerl would happily accept bad values, causing downstream problems in the program. This led to unexpected behavior, where depending on if the data passed was decoded or not, the program would succeed or fail

Full Changelog: Comparing v0.1.1...v0.2.0 · tv-labs/lua · GitHub

Release tag: Release v0.2.0 · tv-labs/lua · GitHub
Hex: lua | Hex

2
Post #4
davydog187

davydog187

[v0.2.1] - 2025-05-14

Added

  • Lua.encode_list!/2 and Lua.decode_list!/2 for encoding and decoding function arguments and return values

Fixed

  • Ensure that list return values are properly encoded

Full Changelog: Comparing v0.2.0...v0.2.1 · tv-labs/lua · GitHub

2
Post #5
christhekeele

christhekeele

This looks excellent, excited to play with it and keeping an eye out for future luerl updates!

1
Post #2
sodapopcan

sodapopcan

Ha, congrats on the release! I did not realized I’d happened upon something that hadn’t been officially announced yet when asking this :grin:

1
Post #3
davydog187

davydog187

[v0.3.0] - 2025-06-09

Added

  • Guards for encoded Lua values in deflua functions
    • is_table/1
    • is_userdata/1
    • is_lua_func/1
    • is_erl_func/1
    • is_mfa/1

Fixed

  • deflua function can now specify guards when using or not using state

Full Changelog - Comparing v0.2.1...v0.3.0 · tv-labs/lua · GitHub

1
Post #6

Where Next?

View thread on forum (has 5 responses!)
lua
luerl
Home Libraries & Projects>Libraries
#lua#luerl
22 411 5
Last post

Popular in Libraries Top

hpopp
Libraries & Projects>Libraries

Pigeon - iOS and Android push notifications for Elixir
After just over two years in development, this latest version of Pigeon is what I finally consider done in regards to my original vision ...
#pigeon#ios#android#push-notifications
54 7264 13
New
zoltanszogyenyi
Libraries & Projects>Libraries

Flowbite - open-source UI components for Phoenix Framework (Elixir)
Hey everyone :wave: Excited to join this forum - I am one of the founders and current project maintainers of a popular and open-source U...
/phoenix#tailwindcss#flowbite
25 5957 8
New
tompave
Libraries & Projects>Libraries

FunWithFlags: a feature toggle library plus its web GUI as a Plug
Hello there, I would like to share a feature toggles library (AKA feature flags) I’ve been working on. The main package is FunWithFlags...
#funwithflags
47 4962 16
New
oltarasenko
Libraries & Projects>Libraries

Crawly - A high-level web crawling & scraping framework for Elixir
Dear Elixir community, After a year of development, bug fixes, and improvements, we are proudly ready to share the release of Crawly 0.1...
#web-scraping
131 9880 45
New
cjen07
Libraries & Projects>Libraries

ParamPipe - parameterized pipe in Elixir
parameterized pipe in elixir: |n> edit: negative index in |n> and mixed usage with |> are supported example: use ParamP...
#metaprogramming#pipeline
41 6078 32
New
danschultzer
Libraries & Projects>Libraries

OAuth 2.0 provider for Elixir and Phoenix
In short Plug n’ play OAuth 2.0 provider library. Just set up a resource owner schema with Ecto (your user schema), install the dependen...
#oauth2
28 6727 8
New
alisinabh
Libraries & Projects>Libraries

Jalaali (Shamsi) calendar for elixir (Persian calendar)
Hey everyone i’ve developed a library for Jalaali calendar for elixir which supports converting Gregorian dates to Jalaali and vice vers...
#jalaali
72 8178 39
New
zorbash
Libraries & Projects>Libraries

Kitto: A framework for interactive dashboards
I created Kitto a framework for dashboards inspired by Dashing. [demo] The distributed characteristics of Elixir and the low memory foo...
#web-frameworks#plug#javascript#kitto
37 13720 16
New
Azolo
Libraries & Projects>Libraries

WebSockex - An Elixir WebSocket client
Hey everyone, I just released WebSockex which is a Elixir WebSocket client. WebSockex strives to work as a OTP special process, be RFC6...
#websockex
74 17328 53
New
anshuman23
Libraries & Projects>Libraries

Tensorflex: Tensorflow bindings for Elixir
Hello all, I have been working on my proposed project called Tensorflex as part of Google Summer of Code 2018.. Tensorflex can be used f...
#machine-learning#data-science#tensorflow
63 7269 15
New

Other popular topics Top

senggen
Questions & Help>Questions

How to fix *Bad argument in call to erlang:'++'(<<"xxx/crash.log">>, ".3") in lager_rotator_default:rotate_logfile/2 line 84*
Erlang/OTP 25 [erts-13.2.2] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1] 15:22:35.803 [error] gen_event {lager_file_backend...
#production#error#log
2 46314 2
New
axelson
Chat & Discussions>Wikis

Emacs - Elixir Setup Configuration Wiki
This post is a wiki (feel free to hit the edit button near the bottom right of this post to add your own changes!) This post collects co...
#spacemacs#wiki#emacs#code-editors#language-server-protocol
239 45766 226
New
malloryerik
Learning Resources>Guides/Tuts/Tips/Info

How to use 'phoenix-heex' templates in VSCode
Hi, this is for people who, like me, have had some friction using .html.heex templates in VSCode. The solution seems to be, in a hyphena...
/phoenix#vscode#heex
118 16932 34
New
vac
Questions & Help>Questions

Formatting a string to PEM with headers and line breaks
Hi, I'm quite new in Elixir and I'm trying to format a string to a PEM format. I have the certificate value like MIIDBTCCAe2...... and ...
2 14555 7
New
fayddelight
Questions & Help>Questions

Installing elixir via asdf shows zsh: command not found: iex
I tried installing elixir 1.11.2 erlang 23.3.4 via asdf in my zsh shell. Enabled the versions locally and globally. When I list them ...
#erlang#asdf
44 16425 17
New
shahryarjb
Questions & Help>Questions

How to convert map to string (separated with ,)
Hello, I have map which I want to convert it to string like this: the map: %{last_name: "tavakkoli", name: "shahryar"} the string I ne...
#maps#strings
15 15491 2
New
johnnyicon
Questions & Help>Questions

How do I use the Postgres JSONB / Postgrex JSON extension?
Hi all, I've just started learning Elixir and Phoenix Framework, so please pardon my n00bness at this stage. I'm trying to use Postg...
#ecto
22 17588 9
New
belgoros
Questions & Help>Questions

Regex question for hyphen match
I’m not a pro in using Regex and can’t figure out why the following behaviour happens, especially if we take into account the difference ...
#learning-elixir
9 12939 10
New
aesmail
News>Announcing

Kaffy - a quick and flexible admin interface for phoenix applications
Hello guys, I have finally made it. I created an admin interface for a framework. It’s been on my todo list for years and with the curre...
/phoenix#ecto#library#admin-tools#kaffy
301 23683 97
New
magnetic
Learning Resources>Guides/Tuts/Tips/Info

Configuring VSCode to use with Elixir and Phoenix Templates
Hey :wave:t3: Elixir community, I’ve been learning Elixir, and working on some side projects. My editor of choice is VSCode, and althoug...
#phoenix_html#vs-code#vscode-elixir#elixir-ls
43 16832 15
New
Back to top

Libraries & Projects>Libraries

Libs/Projects Libraries ❯

Latest on Elixir Forum

Elixir Forum ❯

Sponsor Spotlight

AppSignal

Catch errors, track performance, monitor hosts and more.

Our Sponsors

Dashbit

Build Elixir applications with speed and confidence.

EEF

Supporting innovation across the BEAM ecosystem.

Coders51

We build reliable cloud platforms for business-critical systems.

AppSignal

Catch errors, track performance, monitor hosts and more.

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Manning

Develop your skills with books, videos, and courses.

Potions

The deployment platform built for Elixir: PaaS ease, VPS control.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

Categories:

Sub Categories:

Forums

Our Sponsors

Dashbit

Build Elixir applications with speed and confidence.

EEF

Supporting innovation across the BEAM ecosystem.

Coders51

We build reliable cloud platforms for business-critical systems.

AppSignal

Catch errors, track performance, monitor hosts and more.

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Manning

Develop your skills with books, videos, and courses.

Potions

The deployment platform built for Elixir: PaaS ease, VPS control.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

We're in Beta

About us Mission Statement