fused-effects
A fast, flexible, fused effect system for Haskell (by fused-effects)
eff
🚧 a work in progress effect system for Haskell 🚧 (by hasura)
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| fused-effects | eff | |
|---|---|---|
| 3 | 14 | |
| 580 | 514 | |
| 2.1% | 2.1% | |
| 8.2 | 0.5 | |
| 7 days ago | about 2 years ago | |
| Haskell | Haskell | |
| BSD 3-clause "New" or "Revised" License | ISC License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
fused-effects
Posts with mentions or reviews of fused-effects.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2021-11-17.
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Where's more discussion of the designs of effect systems?
Languages such as Koka only support algebraic effects, not scoping operations such as catch and listen. The Effect Handlers in Scope paper introduces scoping operations, which lead to the Haskell libraries fused-effects and polysemy, but they turned out to have some weird semantics. eff is her effort to fix that.
- Haskell doesn't make sense without pure functions
- Monthly Hask Anything (June 2021)
eff
Posts with mentions or reviews of eff.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-10-25.
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Looking for languages that combine algebraic effects with parallel execution
You'll get fearless parallel with STM in the mixture, and GHC is getting a work in progress effect system for Haskell, as Delimited continuation primops has been merged.
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Should I pick up OCaml or Haskell?
My last example is algebraic effects, some of which have been made possible in a both practical and efficient way thanks to extremely recent research, and that I can use to implement architectures like Ports and Adapters or Clean Architecture and have very maintainable code. (Extensible Effects — An Alternative to Monad Transformers was published in 2013, Effect Handlers in Scope was published in 2014 and they are behind Polysemy, while there is ongoing work on effects with even better performance, like Eff)
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[ANN] cleff - fast and consise extensible effects
cleff's Eff monad is esentially implemented as a ReaderT IO. [...] This is first done by eff, [...]
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Opinions on Reader + Continuation-based IO?
Here is link number 1 - Previous text "eff"
This is essentially how continuation based effect systems work, check out eveff and eff.
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Where's more discussion of the designs of effect systems?
Languages such as Koka only support algebraic effects, not scoping operations such as catch and listen. The Effect Handlers in Scope paper introduces scoping operations, which lead to the Haskell libraries fused-effects and polysemy, but they turned out to have some weird semantics. eff is her effort to fix that.
While her eff is still under construction, there are relative more mature pieces like Koka etc. I'd very much like to understand how her concerns map to those other effect systems, but can't find more write-ups about the design space of effect systems.
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The Problem of Effects (2020)
Let me tell you what I'm worried about with effects systems: One of the smartest people I know of has a library called Eff https://github.com/hasura/eff that efficiently implements effects through some modifications to GHC. The thing is, she's pretty much stopped working on because she found some really nasty semantic edge-cases that she couldn't resolve to her satisfaction. (I don't understand the problems well enough to describe them, and I think they're specific to lazy languages, but it has left me cautious about the effect model in general.)
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A solid GUI Framework for Haskell?
Why do you need a GUI library, if you can write your application using extensible effects frameworks, just choose any and enjoy!
- Monthly Hask Anything (June 2021)
What are some alternatives?
When comparing fused-effects and eff you can also consider the following projects:
polysemy - :gemini: higher-order, no-boilerplate monads
freer-simple - A friendly effect system for Haskell
eveff - Efficient Haskell effect handlers based on evidence translation.
frp-zoo - Comparing many FRP implementations by reimplementing the same toy app in each.
extensible-effects - Extensible Effects: An Alternative to Monad Transformers
machines - Networks of composable stream transducers
ChannelT - Generalized stream processors
control-monad-free - Free monads and monad transformers
in-other-words - A higher-order effect system where the sky's the limit
control-monad-exception - Explicitly Typed exceptions as a library