erllambda | eqwalizer | |
---|---|---|
1 | 11 | |
193 | 500 | |
0.0% | 0.4% | |
2.5 | 8.2 | |
about 1 year ago | 4 days ago | |
Erlang | Scala | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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erllambda
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Erlang: The coding language that finance forgot
I've run plenty of things in AWS Lamba using Erlang FWIW.
https://github.com/alertlogic/erllambda
It is interesting in as much as the lambda functions stay hot for a period of time.
eqwalizer
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Switching to Elixir
I don't think the implementation itself is at fault, but yes, I do think that the design of dialyzer makes it an (at times) faulty type checker. The unfortunate reality of a type checker that fails sometimes is that it makes it mostly useless because you can never trust that it'll do the job.
To be clear, I've had it fail in a function where I've literally specced that very function to return a `binary` but I'm returning an `integer` in one of the cases. This is a very shallow context but it can still fail. Now add more functions, maybe one more `case`.
I think an entire rethink of type checking on the BEAM had to be done and that's why eqWalizer[0] was created and why Elixir is looking to add an actual sound, well-developed type checker. Gleam[1] I would assume is just a Hindley-Milner system so that's completely solid. `purerl`[2] is just PureScript for the BEAM so that's also Hindley-Milner, meaning it's solid. `purerl` has some performance issues caused by it compiling down to closures everywhere but if you can pay that cost it's actually pretty fantastic. With that said my bet for the best statically typed experience right now on the BEAM would be `gleam`.
0 - https://github.com/WhatsApp/eqwalizer
1 - https://gleam.run
2 - https://github.com/purerl/purerl
- Unpacking Elixir: Concurrency
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eqwalizer VS Gradualizer - a user suggested alternative
2 projects | 17 Apr 2023
- Erlang: The coding language that finance forgot
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Phoenix 1.7 is View-less
While it's not static-typing, compile-time type checking for Erlang have come a long way: Eqwalizer works pretty well - but I may be biased since my employer sponsors the project.
1. https://github.com/WhatsApp/eqwalizer
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[New] How do you verify program correctness in Elixir?
Note there is also research happening in this area by the Elixir team. The WhatsApp is also working on static types for Erlang, which I am certain will be available for Elixir too at some point.
- Eqwalizer: A Type-Checker for Erlang
- Eqwalizer: WhatsApp’s Erlang Type Checker
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Elixir Livebook now as a desktop app
From the discord blog posts it seems that elixir powers the chat system, with rust and python as the other two main languages in their stack.
As for whatsapp, they are mainly a erlang shop and yesterday they open sourced a type checker for erlang:
https://github.com/WhatsApp/eqwalizer
What are some alternatives?
purerl - Erlang backend for the PureScript compiler
gradient - Gradient is a static typechecker for Elixir
secdb - Timeseries market data database
explorer - Series (one-dimensional) and dataframes (two-dimensional) for fast and elegant data exploration in Elixir
beam_languages - Languages, and about languages, on the BEAM
kino - Client-driven interactive widgets for Livebook
april - The APL programming language (a subset thereof) compiling to Common Lisp.
FunkyABX - Audio blind tests
CouchDB - Seamless multi-master syncing database with an intuitive HTTP/JSON API, designed for reliability
Gradualizer - A Gradual type system for Erlang
aws-lambda-elixir-runtime - Example implementation of a custom runtime for running Elixir on AWS Lambda.
bandit - Bandit is a pure Elixir HTTP server for Plug & WebSock applications