unison
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unison | project-m36 | |
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17 | 7 | |
5,504 | 875 | |
1.0% | - | |
9.9 | 7.4 | |
5 days ago | 2 days ago | |
Haskell | Haskell | |
GNU General Public License v3.0 or later | The Unlicense |
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unison
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Unison Cloud
Hi, one of the Unison creators here. We've talked about adding pluggable syntax[1]. It's in principle straightforward (the code is already stored in a database as its abstract syntax tree, not text) and I imagine a future version of Unison could let you pick from a variety of syntaxes. But we haven't gotten to it yet.
[1] https://github.com/unisonweb/unison/issues/499
... that said, the language semantics and libraries are still going to be different, so even if we have a python-ish or typescript-y syntax, there'll still be new things to learn. :)
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?
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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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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.
- What if Git worked with Programming Languages?
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Red and blue functions are a good thing
The Unison language [1] also has a very interesting effect system.
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What does your ideal programming language look like?
I think Unison might have at keast somewhat similar features to what you talk about with package manegement and possibly modules. I haven't tried it out yet but from the documentation it sounds similar.
project-m36
What are some alternatives?
nvim-treesitter-context - Show code context
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cone - Cone Programming Language
structured-haskell-mode - Structured editing minor mode for Haskell in Emacs
nbdime - Tools for diffing and merging of Jupyter notebooks.
UwUpp - The next generation esoteric language
lawvere - A categorical programming language with effects
structured-haskell-m
syntactic_versioning - What if Git worked with Programming Languages?
git-merge-driver - Example of how to configure a custom git merge driver
diffsitter - A tree-sitter based AST difftool to get meaningful semantic diffs
pocl - Predictive Optimizing Code Loading