js-proposal-algebraic-effects
koka
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js-proposal-algebraic-effects | koka | |
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3 | 31 | |
167 | 3,057 | |
- | 2.1% | |
0.0 | 9.8 | |
almost 3 years ago | 3 days ago | |
JavaScript | Haskell | |
- | GNU General Public License v3.0 or later |
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js-proposal-algebraic-effects
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Proposal: Signals as a Built-In Primitive of JavaScript
I have to admit: you're perfectly right here. React of course always relied on mutable state in it's implementation β just so we don't have to. I derailed a lot here to keep this funny thread going ;) I'm still not with you on your definition of "functional", since you treated it synonymously with "purely functional". Functional means just made by applying and composing functions, and react UI is created exactly like that. There is an awesome algebraic effects proposal[1], which will hopefully will be added to JavaScript one day, then react will make use of it to become purely functional.
1: https://github.com/macabeus/js-proposal-algebraic-effects
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Letlang, a programming language targetting Rust - Road to v0.1
Super interesting, there is a proposal to add this to JavaScript and several languages that use this, unison, koka & eff. I had no idea this was even a thing!
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Go Replaces Interface{} with 'Any'
Ok I was wrongly assuming that panic was expecting an error type, in fact it's an interface{}.
> Your use of exceptions for flow control (i.e. goto) is considered harmful
Exceptions are a way to delegate error handling to the caller by giving them informations about the unexpected behavior. It implies that the expected behavior is the "happy path" (everything went well) and any deviations (errors) is unexpected.
This is far from a goto because you can have `try/finally` blocks without catch (or defer in golang).
Also, exceptions are just a kind of algebraic effects that do not resume. There was a proposal to JS for this: https://github.com/macabeus/js-proposal-algebraic-effects
This is also easier to test. assertRaises(ErrorType, func() { code... })
Almost every Go library I've seen just return an error (which is just a string), you'd need to parse it to assert that the correct error is returned in special conditions.
koka
- Koka v3 Released
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Koka: A fast functional programming language with algebraic effects
This post by the Koka-author is an update about what's currently being worked on: https://github.com/koka-lang/koka/discussions/339
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Not Use Path Based Imports
Some programming language like JS, use path-based imports, that's not good for making a stabel API.
See https://api-extractor.com/pages/setup/configure_rollup/#:~:text=(The%20API%20Extractor,with%20that%20effort.)
And https://github.com/koka-lang/koka/issues/31#issuecomment-1482200826
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What features would you want in a new programming language?
It also offers a great Inversion of Control mechanism where everything is customisable, and, unlike Capability Objects, AESs also offer compatibility with type inference (you can pass functions doing IO to map, and it Just Works(TM)) and first-class control over stack frames (because really a continuation function is just some stack frames, which you can manually move to the heap if you want a closure; which means async is an effect!). It also is composable in ways Monads are not.
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What are you doing about async programming models? Best? Worst? Strengths? Weaknesses?
Koka and other languages implementing Algebraic Effect Systems make everything a user-defined case of coroutines: async is just another effect/Monadic type. Zig does something similar by having first class stack frames, making all function calls possibly asynchronous.
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Letlang, a programming language targetting Rust - Road to v0.1
Super interesting, there is a proposal to add this to JavaScript and several languages that use this, unison, koka & eff. I had no idea this was even a thing!
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Let's collect relatively new research programming languages in this thread
Koka, already cited in this thread, early 2010s. Koka's first claim to fame was a usable effect system (at the type were, basically, effect systems were not usable in practice; in fact few languages have managed to do as well as Koka since). Now its author is working on cool implementation strategies for functional languages as well.
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[Offer] Tutoring for Computer Science / Programming / Software Engineering topics
I'm a software engineer with 3 years of professional experience. I worked for 2 years at Microsoft on Azure Compute and now work at Google, working on improving Google search. I am the sole maintainer of the popular open-source library microlens with 80k downloads. I've also contributed to the Koka programming language developed at Microsoft Research.
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Implementing the Perceus reference counting GC
By implementing all of those optimizations in the Koka programming language, they achieved GC overhead much less and execution time faster than the other languages including OCaml, Haskell, and even C++ in several algorithms and data structures that frequently keep common sub-structures of them, such as red-black trees. For more information, see the latest version of the paper.
- Creator of SerenityOS announces new Jakt programming language effort
What are some alternatives?
mux - A powerful HTTP router and URL matcher for building Go web servers with π¦
effekt - A research language with effect handlers and lightweight effect polymorphism
exhaustive - Check exhaustiveness of switch statements of enum-like constants in Go source code.
rust - Empowering everyone to build reliable and efficient software.
errors - Simple error handling primitives
wasm-effect-handlers - WebAssembly specification, reference interpreter, and test suite with effect handlers extension.
rustic_result - Result monad for Elixir inspired by Rust Result type
FStar - A Proof-oriented Programming Language
dafny - Dafny is a verification-aware programming language
zig - General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
Rust-for-Linux - Adding support for the Rust language to the Linux kernel.
pen - The parallel, concurrent, and functional programming language for scalable software development