eff

🚧 a work in progress effect system for Haskell 🚧 (by hasura)

Eff Alternatives

Similar projects and alternatives to eff

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better eff alternative or higher similarity.

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Reviews and mentions

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 2021-08-27.
  • Languages that don't support Error-Catching as a Control Structure?
    There are a few languages that have algebraic effect systems, most notably Haskell, but these systems are implemented as libraries, not baked into the language (which can have advantages and disadvantages).
  • The Problem of Effects (2020)
    news.ycombinator.com | 2021-08-27
    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.)
  • Thoughts on polysemy?
    reddit.com/r/haskell | 2021-07-26
    eff was supposed to solve (some of) the above problems, but it's stalled now.
  • A solid GUI Framework for Haskell?
    reddit.com/r/haskell | 2021-06-27
    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)
    reddit.com/r/haskell | 2021-06-02
  • I’ve tried to learn Haskell several times. But keep failing
    reddit.com/r/haskell | 2021-06-01
    It means that you can see a type signature like this and you know immediately how it will provide what you want in the context of an arbitrary monad "stack." It means that when you are looking to understand how to use e.g. MegaParsec it doesn't surprise you that the discussion of the relevant monads is the first thing in the tutorial. It means you know why this exists https://hackage.haskell.org/package/scotty-0.12/docs/Web-Scotty-Trans.html and maybe you can even fumble through https://docs.servant.dev/en/stable/cookbook/hoist-server-with-context/HoistServerWithContext.html and use it in your app even if you don't otherwise understand all the type-level magic happening in Servant. You'll also understand what to do if you're faced with a type signature in IO or Maybe or whatever concrete monad and you have to integrate it with a more generalized monad. You may also start to understand why everyone is so interested in effect systems.
  • Eff - a functional programming language based on algebraic effect handlers
    Great to see it's actively developed. And curious to see how it races with https://github.com/hasura/eff

Stats

Basic eff repo stats
7
470
0.1
12 months ago

hasura/eff is an open source project licensed under ISC License which is an OSI approved license.

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