10 条评论
- pianopatrick 5小时前The thought crosses my mind that Haskell may be uniquely suited for AI coding using a very small context window (cheap). Haskell encourages small functions and no global state. So you may be able to capture all the relevant context for editing a Haskell function within a few hundred or few thousand tokens. That would be better than some other languages. Plus the strong typing could help AI agents catch errors.
I have not played around with it to see how that plays out with agentic coding. But it does seem like an interesting idea.
- the-grump 4小时前As someone who loves Haskell more than any other language, some challenges are
- the tooling is decades behind, say, Rust or Go
- finding the right library in looks very different in Haskell--you frequently start with the signature on Hoogle. Agents can learn this but it's not the same as "web search"
- creating the right solution also looks different. It's usually borne out of thinking about the types and coming up with the correct algebra. Again models can probably learn to create the right types and orient the solution around that, but it's not automatic
- same today as yesterday, laziness is a blessing and a curse. The runtime can do unpredictable things when you suddenly evaluate a deep thunk
- GHC directives effectively mean there are multiple "Haskells"
Some of those are a result of the "avoid success at all costs" mantra. You can't shake that off in a day. It will take a concerted effort to make it more amenable for seamless adoption.
Haskell continues to be my favorite language to write and read, but Rust is the more practical language with a rich type system. If you're looking for something approaching Haskell's expressiveness but with fewer of these issues, check out PureScript.
- mhitza 4小时前No way tooling is decades behind. You have a decent LSP, debugger, package manager and REPL.
Laziness is hard to observe, maybe Strict and StrictData would become more popular in use within this context.
I haven't checked in a while now if effects have become the norm in the ecosystem, or if some solution exists for "string" types, but for me all of Haskell's expressivity is lost in the noise of endless conversion function, wrapper types when stacking monads, and import fiddling.
- Pay08 2小时前The package manager/build system is anything but decent. Any Haskell project will involve at least 24 hours worth of manual dependency conflict resolution.
- nh2 1小时前No, this is not the reality of using Haskell packages.
The problem you describe was solved more than a decade ago.
You use a Stackage snapshot (https://www.stackage.org/lts) which is a curation of packages that work together, similar to a Linux distribution like Debian, carrying one version per package.
Our company using Haskell has not spent 1 minute doing "dependency resolution" in the last 10 years, not has anybody we know.
- jose_zap 1小时前> the tooling is decades behind, say, Rust or Go
That's definitely not true, even if that was true maybe 6 years ago. As someone who's uses Haskell daily and also many other languages, I can see Haskell's tooling as more advanced than many others.
- drewfax 0分钟前I tried building a cross platform shared library. I still couldn't get GHC to generate the library with Haskell's Runtime (RTS) statically linked. Tried multiple AI models and nothing could make it work. Eventually gave up after a month.
Also there's no support for Android and iOS, atleast not without spending months in recompiling GHC with haskell.nix or other third party projects.
Eventually I switched to Rust. It's tooling is so mature that I can focus on developing than compiling GHC.
Despite these demerits, I love Haskell language and lazy eval. I wish I can use it one day.
- mirpa 29分钟前Think problem is not in advanced features but in stability, integration and streamlining - compared to Rust/cargo.
- pjmlp 4小时前> - the tooling is decades behind, say, Rust or Go
If only Rust had something like GHCi.
Stack and Cabal have longer history than cargo, and Stackage for puzzle dependencies.
> - GHC directives effectively mean there are multiple "Haskells"
A bit like macro libraries and what features are enabled where in Rust
- onlyrealcuzzo 51分钟前> the tooling is decades behind, say, Rust or Go
Can AI not help speed this up?
As someone who DOESN'T use Haskell... What specifically is it missing?
Are you conflating ecosystem with tooling?
> If you're looking for something approaching Haskell's expressiveness but with fewer of these issues, check out PureScript
Rust is quite expressive. Is Haskell really substantially much more?
I do think Rust is a great language for LLMs because I think expressiveness is key.
- zozbot234 39分钟前Haskell is more easily compared with e.g. OCaml than with something like Rust. (It's worth noting that OCaml now has its own 'rustified' development OxCaml.) The main practical difference is that Haskell is idiomatically based on lazy evaluation, whereas OCaml is strict. This makes corecursive patterns a bit easier to express in Haskell, but OCaml and OxCaml are friendlier wrt. performance concerns.
- holowoodman 3小时前> - the tooling is decades behind, say, Rust or Go
No way. Where vibe-coded Rust contains tons of "unsafe", you can have your vibe-coded Haskell sprinkled with "unsafePerformIO" and "unsafeCoerce" ;)
- lmm 3小时前accursedUnutterablePerformIO or bust :)
- internet_points 3小时前There are lots of people successfully using agents with Haskell, for example
* https://github.com/digitallyinduced/ihp/ is mainly written with Claude now
* https://jappie.me/haskell-vibes.html is gushing over agent-written Haskell
* https://discourse.haskell.org/t/anti-llm-sentiment-considere... huge thread about the divisiveness of LLM's from some person who loves using them with Haskell
I can see how agent coding is a nice fit for Haskell, since LLM's tend to be best at tasks where you can easily verify the output – and GHC lets you easily verify much more of your domain than say Python (sure you can test some of what dynamic typing doesn't catch, but LLM-written tests do not always do what you think they should[0]). At the same time, the LLMs tend to not code golf unless asked to, and they don't care if they have to wait for dependencies to compile, so that takes away the two major Haskell time sinks.
[0] https://haskellforall.com/2026/05/type-out-the-code#:~:text=...
- jappgar 49分钟前"no global state" sure but sprawling monad constraints mean you're jumping around more than other languages.
The terseness of Haskell just hides the inherent complexity of the problem. The AI (or human) still needs to uncover that complexity in order to do non-trivial things.
- isatty 4小时前As an intermediate Haskell programmer, I’ve found that using AI to debug or learn Haskell is a better use of time than generating a lot of code with it.
Even without AI most of my Haskell time is spent thinking.
Also, I hand writing Haskell is one of my small after work pleasures.
- shideneyu 3小时前Much agreed
- idle_zealot 4小时前I suspect that the compact nature of the syntax would require more tokens spent "thinking" to get decent results. It might be more efficient for simple code though. Either way worth testing. Surely someone must've set up a "how well LLMs handle Xlang" benchmark suite.
- ShinTakuya 2小时前I think the main reason more time might be spent thinking is because there's relatively less training data on Haskell out in the wild, meaning an agent may have to check back and forth with static analysis to figure out what's valid.
Compact syntax is generally only a good thing for LLMs because it saves context windows and tokens.
- uHuge 4小时前Yup, it was mostly pleasure AI coding a company codebase in Scala. I'm considering it for next projects for this reason although my understanding and intuition for Scala code is much weaker than for Python.
- angled 1小时前I was a little disappointed with the results I was seeing in F#. I thought the .NET + GPT-5.* pull through would be sufficient but it never seemed to work out. Maybe I just wasn’t approaching it correctly.
- KnuthIsGod 3小时前"The principal goal is to dedicate most of the Foundation’s financial resources to technical work.....
To make this possible, the Haskell Foundation will remain without an executive director for the foreseeable future.
Instead of having a full-time employee in charge of fundraising, events, coordination, mediation and much more, we will split these responsibilities between the Board and a new, part-time role dedicated to the Haskell Foundation’s financial sustainability."
Sounds a great move in principle.
- chowells 8小时前Glad to see Simon Marlow didn't just vanish into Facebook.
- qrobit 4小时前He doesn't have a role at Facebook anymore AFAIK, although I can't find the source now. I remember hearing it was mostly due to filtering engine at Facebook being rewritten in Hack, so they don't have the need for Haskell people anymore.
- psittacus 4小时前He posted about him leaving Facebook on Linkedin: https://www.linkedin.com/feed/update/urn:li:activity:7302785...
He also reflected on his time and Haskell usage at Facebook here: https://www.youtube.com/watch?v=gEWBHP0PvRw&list=PLQpeDZt0_x...
- NexraGear 4小时前Nice to see continued investment in the Haskell ecosystem. Long-term sustainability for niche but highly influential programming languages is incredibly important for the broader software community.
- thecloudlet 6小时前Really like this language. I would love more if we can make developing production code easier.
- mchaver 34分钟前What do you find about bringing it into production? Is it the actual language patterns or the tools? I've done Haskell in production for over a decade now so I am not sure what challenges newcomers face.
- shideneyu 3小时前I like it too. It's underrated because the learning curve is very high
- faangguyindia 5小时前Developer exercise is still lacking in Haskell ecosystem.
Slow build times, deployment to Linux when developing on macos still pain. Deployment is pain specially on commodity VPS.
Go is very easy to cross compile and deploy.
But Haskell is better for a few things, but I've hardtime deploying it
- isatty 4小时前You can use the GHC musl container: benz0li/ghc-musl:9.8.4 to create static binaries. I've specialized that into -arm64 and -amd64 containers for forgejo actions.
Anytime I push to my Haskell repos my actions automatically create static binaries for installation on my nodes.
- internet_points 3小时前Cross compilation could definitely be easier :-/ I tend to just use github actions and compile from whatever architecture it should run on, so that's a workaround. I long for a day when I can just `cabal build --platform=amd64` etc. and it Just Works without having to download and compile a horde of foreign libs or set up a vm
- instig007 2小时前> cabal build --platform=amd64
It's almost a one-liner + a nix derivation import, works within a minute on incremental builds even on large projects: https://input-output-hk.github.io/haskell.nix/tutorials/cros...
- frogulis 4小时前> Deployment is pain specially on commodity VPS.
Oh? Why is that?
- sshine 4小时前I can only think of memory usage during compilation. That’s why I had to precompile binaries, which means cross-compile. Then if you add cross-OS, bundling a properly linked or statically linked binary is not that easy.
- benleejamin 8小时前How is the Haskell Foundation doing these days? Are we worried about its future?
- carterschonwald 8小时前this sounds like a nice non prescriptive direction. jose is a pretty cool dude. pre covid we theoretically were gonna poke a defining a memory model of ghc haskell c— / hs / core , but life intervened
- satvikpendem 6小时前I heard of HVM recently, is that still related to Haskell or has that become its own thing?
- bjoli 5小时前It is just a runtime, no? I have only ever heard about it as something to run their own bend programming language.
Are people targeting it as a runtime for Haskell as well?
- shevy-java 3小时前I found Haskell too difficult. They focus on a specific niche, so they won't be a mainstay programming language anyway, but even then when you ask people what are the real innovations or success stories per given year, say, 2025 or 2026, they almost never mention Haskell.
- niek_pas 3小时前I don't mean to sound elitist, but in a way, Haskell's difficulty is kind of the point of the language.
The thing that's so elegant about Haskell is that it allows you to express programmatic constructs at a very abstract level. Abstraction is almost by definition difficult to grasp. That's why it takes a decade and a half for (most) people to go from arithmetic to calculus.
- haskman 1小时前Difficulty is most certainly not the point. Abstraction, composability, yes, but difficulty is a language smell that CAN be fixed. (I love Haskell and it's my primary langauge, so this comes from a place of love).