unison
tutorials
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unison | tutorials | |
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17 | 2 | |
5,540 | 3 | |
1.1% | - | |
9.9 | 10.0 | |
5 days ago | over 1 year ago | |
Haskell | HTML | |
GNU General Public License v3.0 or later | MIT License |
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unison
- Unison Programming Language
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Unison Cloud
Short version: no type classes (yet)
Longer version:
Building upon what Quekid5 mentioned, Unison abilities are an implementation of what is referred to as algebraic effects in programming language literature. They represent capabilities like IO, state, exceptions, etc. They aren't really a replacement for type classes, though in some cases you can shoehorn abilities in where you might otherwise use a type class.
For someone coming from a Haskell background, I think that abilities are closer to a replacement for monad transformers. But in my opinion they are much more ergonomic.
Discusson of type classes comes up a lot. Here is a long-standing GitHub issue: https://github.com/unisonweb/unison/issues/502
For what it's worth, I've written Unison quite a lot over the past few years and while I've missed type classes at times, I think that reading unfamiliar code is easier without them. There's no implicit magic; you can see exactly what is being passed into a function. So far I've been happy with a bit more verbosity for the sake of readability.
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Show HN: Winglang – a new Cloud-Oriented programming language
I've been following the Unison lang [1] for quite some. Wing seem to set similar goals? From the first glance Wing looks more polished, but there's "The Big Idea" behind Unison - is there something similar?
[1]: https://github.com/unisonweb/unison
- Unison Language
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C++ evolution vs C++ successor languages. Circle's feature pragmas let you select your own "evolver language."
in haskell it looks like this, you specify the language extensions you want at the top of the source files: https://github.com/unisonweb/unison/blob/trunk/unison-core/src/Unison/ABT.hs
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Looking for a new language to learn for Advent of Code that's unlike anything you've tried before? Check out Unison!
they adjusted my ticket to be a bug fix on their part.
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Syntax Design
I think Unison is going in this direction. Imo this is a mistake, as a program language functions not just as specification for the machine, but also as communication between programmers. Allowing the introduction of arbitrary dialects to suit individual preferences seems like it would interfere with that communication.
- Unison
- Unison Milestone 3
- What if Git worked with Programming Languages?
tutorials
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Syntax Design
[2] https://github.com/jevko/tutorials/blob/master/jevko-anatomy/source.jevko -- this uses {} instead of [], because I could :P
Thank you, I'm very happy to hear that. :)
Ease of implementing is a goal, so that there is minimal friction when porting into any language.
This reminds me that I should finish this tutorial: https://github.com/jevko/tutorials/blob/master/parser.md
I hope you can get your friends excited! ;)
I'd really love to see folks put Jevko to use!
What are some alternatives?
nvim-treesitter-context - Show code context
markup-experiments - A collection of experiments with Jevko and text markup.
dark - Darklang main repo, including language, backend, and infra
algebralang - at this time this is some example code of a language I want to build
project-m36 - Project: M36 Relational Algebra Engine
tree - A Data Modeling Programming Language
cone - Cone Programming Language
parsejevko.js - [DEPRECATED] Deprecated in favor of https://github.com/jevko/jevko.js
nbdime - Tools for diffing and merging of Jupyter notebooks.
treenotation.org - TreeNotation.org website
structured-haskell-mode - Structured editing minor mode for Haskell in Emacs
anic - ANI language - Faster than C, Safer than Java, Simpler than *sh (now dead)