cogent | hylo | |
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4 | 54 | |
157 | 1,128 | |
0.0% | 3.4% | |
0.0 | 9.9 | |
over 1 year ago | 6 days ago | |
Isabelle | Swift | |
GNU General Public License v3.0 or later | Apache License 2.0 |
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cogent
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Let's collect relatively new research programming languages in this thread
Cogent, late 2010s, a language with linear types for verification. The idea is that you write functional-looking code that is easy to verify using the functional semantics, but with an efficient compilation strategy enabled by linear types to get realistic system programs.
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Thoughts on the Rascal meta-programming language
Of course. Here was the first incarnation: https://github.com/amw-zero/sligh. It has a decent overview of the idea in the readme. To sum it up here, the idea is: have a language built around model-driven development and model-based testing, where you write a simple model of an application, and the implementation and model-based tests are compiled for you. I wrote about the overall model-based testing strategy here. This idea comes from self-certifying compilers that produce proofs of their correctness such as Cogent, but we drop the formality requirement and use property-based testing to compare the implementation and model.
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Are there any ML style languages with no runtime?
That made me think of this project Cogent. This is almost certainly not what you’re looking for, because it’s aimed at formal verification. But, it does have some interesting properties, like manual memory management through uniqueness types. It doesn’t even support recursion though so, probably not so good as a general purpose PL.
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I'm a freelancer and I've got a customer who is asking for USB driver for a new device. They want it written in c++ and I said I'd only consider creating and supporting it if it was written in Rust. 🤷♂️
https://github.com/NICTA/cogent is for auto generating isabelle theorems + C code.
hylo
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Vala Programming Language
Or Val[0], now called Hylo (for a good reason), or V[1].
[0] https://www.hylo-lang.org
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Cpp2 and cppfront – An experimental 'C++ syntax 2' and its first compiler
The evolution of C++ has been a multi-decade history of dealing with difficult reality.
I have great hope that Herb can create with his cppfront project “The Very Best of C++” to carry that tremendous legacy forward.
If I was to throw my hat into a “C++ successor”, it would be https://www.hylo-lang.org/ with its “all the safeties” and “tell you when you’re doing it sub-optimal” approach.
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Borrow Checking Hylo [video]
Paper: https://2023.splashcon.org/details/iwaco-2023-papers/5/Borro...
> Hylo is a language for high-level systems programming that promises safety without loss of efficiency. It is based on mutable value semantics, a discipline that emphasizes the independence of values to support local reasoning. The result—in contrast with approaches based on sophisticated aliasing restrictions—is an efficient, expressive language with a simple type system and no need for lifetime annotations.
> Safety guarantees in Hylo programs are verified by an abstract interpreter processing an intermediate representation, Hylo IR, that models lifetime properties with ghost instructions. Further, lifetime constraints are used to eliminate unnecessary memory allocations predictably.
https://www.hylo-lang.org/
https://github.com/Hylo-lang/Hylo
- Hylo a programming language that tries to be safe and fast
- Odin Programming Language
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Why do lifetimes need to be leaky?
A model without lifetimes is also being explored in other languages, e.g. in Hylo. It sacrifices expressiveness, but on the other hand you don't have to deal with explicit lifetimes!
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D Programming Language
Why go through all the trouble when you can do this: https://www.hylo-lang.org/ and not spend a second thinking of lifetimes? No, copies will not be issued unless necessary.
Or why not keep exploring this idea as well? More research-oriented than the first one right now, though, so take it with a grain of salt: https://vale.dev/
- Berry is a ultra-lightweight dynamically typed embedded scripting language
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I've heard that "Rust's borrow checker is necessary to ensure memory safety without a GC" usually also implying it's the only way, but I've done the same without the borrow checker. Am I just clueless/confused?
Get rid of references at the cost of some expressivity (see Hylo, formerly Val)
- Rename 'Val' to 'Hylo'
What are some alternatives?
py4j - Py4J enables Python programs to dynamically access arbitrary Java objects
carbon-lang - Carbon Language's main repository: documents, design, implementation, and related tools. (NOTE: Carbon Language is experimental; see README)
edsl - Example of embedding TypeScript as an EDSL inside of another language
jakt - The Jakt Programming Language
programming-language-subreddits-and-their-choice-of-words - How do the different communities talk?
rust - Empowering everyone to build reliable and efficient software.
karamel - KaRaMeL is a tool for extracting low-level F* programs to readable C code
vale - Verified Assembly Language for Everest
datafun - Research on integrating datalog & lambda calculus via monotonicity types
Vale - Compiler for the Vale programming language - http://vale.dev/
jasmin - Language for high-assurance and high-speed cryptography
zig - General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.