unison
Cwerg
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unison | Cwerg | |
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17 | 59 | |
5,540 | 396 | |
1.1% | - | |
9.9 | 9.7 | |
7 days ago | 13 days ago | |
Haskell | Python | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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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?
Cwerg
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Cwerg: C-like language that can be implemented in 10kLOC
Perhaps these have already been dealt with and I'm missing critical information. If so, my apologies. Great work, in any case.
[1] https://github.com/robertmuth/Cwerg/tree/master/FrontEnd#dis...
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Where can I find resources and guides on how to build compiler backends?
Cwerg has backend that can be used as JIT and is written with readability in mind. Additional documentation can be found here: https://github.com/robertmuth/Cwerg/tree/master/Docs
- Most important language features not touched in the book "Crafting Interpreters"?
- Lack of resources in creating Assemblers from scratch.
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Minimum ISA Capabilities to Support Most (Non-Interactive) Programs?
I defined a basic ISA-like IR for Cwerg. It has unlimited registers and no constraints on immediates.
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How do you design a compiler and a language?
entire compiler front end ast nodes
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Syntax Design
I was also going down the path of bike shedding concrete syntax for my language Cwerg before pulling the plug on that effort and just using s-exprs. I managed to make the s-expr quite succinct by carefully choosing the order of arguments so I can omit optional ones. Also very helpful was to use square brackets for list, e.g. (call fun-name [arg1 arg2]). This simplifies parsing a little bit and is easier on the eye. Here are some Code Examples
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November 2022 monthly "What are you working on?" thread
I am iterating over the languages features for Cwerg's Frontend which aims to be a low level language with about the complexity of C but with some of the comforts of modern languages. I am especially happy with the choice of adding sum types. Relative to C the current feature set looks like this: Removed: * arrays decay to pointers * bitfields * separate compilation (more of a backend issue) * pre-processor * varargs * implcit type conversions * (untagged) unions * ++/-- * comma operator * implicitly nullable pointers * goto
- typed asts and codegen
- Features Compendium
What are some alternatives?
nvim-treesitter-context - Show code context
mir - A lightweight JIT compiler based on MIR (Medium Internal Representation) and C11 JIT compiler and interpreter based on MIR
dark - Darklang main repo, including language, backend, and infra
tinycc - Unofficial mirror of mob development branch
project-m36 - Project: M36 Relational Algebra Engine
asmjit - Low-latency machine code generation
cone - Cone Programming Language
bluebird - A work-in-progess programming language modeled after Ada and C++
nbdime - Tools for diffing and merging of Jupyter notebooks.
konna - A fast functional language based on two level type theory
structured-haskell-mode - Structured editing minor mode for Haskell in Emacs
boring-lang - A very boring programming language