envy
eff
Our great sponsors
envy | eff | |
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1 | 18 | |
149 | 546 | |
- | 0.9% | |
3.3 | 0.0 | |
22 days ago | 12 months ago | |
Haskell | Haskell | |
BSD 3-clause "New" or "Revised" License | ISC License |
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.
envy
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I’ve tried to learn Haskell several times. But keep failing
when you already know how to compile and run single-module interactive console programs, it takes about a day to understand basics of Cabal, and about a week to learn about input parsing and output formatting. Do you need CLI args? Use optparse-applicative. Env vars? Use envy. JSON? Use aeson. Don't think about performance and/or API conventions, that's not what you should be concerned of at this point, as you are just learning to compose things together from indivdual parts.
eff
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Haskellers who moved to Rust: What has been your experience?
You can swap-out implementations for testing, avoid the crazy N^2 instances issues, etc. They're pretty cool. Currently there are many competing libraries. polysemy and eff both have good examples on their homepages.
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What are the current hot topics in type theory and static analysis?
Effect systems and Algebraic effects. ocaml has just released a stripped-down effect system. People are also working on Effect systems for Haskell (eff, fused-effects, effet). Koka is a language built with effects first and foremost and it’s rapidly gaining popularity. Unison also has effects.
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[ANNOUNCE] GHC 9.6.1 is now available
There are also a few subtle issues that arise with delconts related to semantics of higher order effects (see here and here), but they might be solvable.
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Effectful | Paweł Szulc | Lambda Days 2022
Details are in https://github.com/hasura/eff/issues/12 and https://www.reddit.com/r/haskell/comments/pywuqg/unresolved_challenges_of_scoped_effects_and_what/.
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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"
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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.
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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).
What are some alternatives?
huck - 'Cause just like in the classic mis-adventure, Tom doesn't really pull his weight. So Huck is gathering all the toml parsers and making them betterer.
freer-simple - A friendly effect system for Haskell
taffybar - A gtk based status bar for tiling window managers such as XMonad
fused-effects - A fast, flexible, fused effect system for Haskell
bench - Command-line benchmark tool
frp-zoo - Comparing many FRP implementations by reimplementing the same toy app in each.
hackage-search - An application that lets you search for anything on Hackage
in-other-words - A higher-order effect system where the sky's the limit
cabal-query - Helpers for quering .cabal files or hackageDB 00-index.tar
polysemy - :gemini: higher-order, no-boilerplate monads
libsystemd-journal - Haskell bindings to libsystemd-journal
extensible-effects - Extensible Effects: An Alternative to Monad Transformers