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Introduction to Doctests in Haskell
6 projects | reddit.com/r/haskell | 19 Apr 2022
Looking for a few projects that make use of it, I found accelerate, hawk, polysemy and pretty-simple, so I'll be interested to poke around in their code and see how they have things set up.
ReaderT pattern is just extensible effects
2 projects | reddit.com/r/haskell | 3 Feb 2022
Right, I think I'll just give it a shot to see. Polysemy is nice but I'm still having trouble getting what I want out of it (which may very well be entirely a fault of my own understanding)
Where's more discussion of the designs of effect systems?
4 projects | reddit.com/r/ProgrammingLanguages | 17 Nov 2021
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.
Monthly Hask Anything (June 2021)
16 projects | reddit.com/r/haskell | 2 Jun 2021
Trouble Reinterpreting Higher Order Effects in PolySemy
1 project | reddit.com/r/haskell | 23 Apr 2021
Looking at the interpreter for Reader might give some clues if this doesn't work. https://github.com/polysemy-research/polysemy/blob/master/src/Polysemy/Reader.hs#L38-L45
Structuring Code with ZIO & ZLayers
3 projects | reddit.com/r/scala | 3 Mar 2021
*But I'm not terribly well versed in Scala's other DI offerings. I came from Haskell and didn't find anything in Scala that clicked with me until I found ZIO. It reminded me a lot of my favorite way of writing Haskell programs (https://github.com/polysemy-research/polysemy)—albeit with a completely different implementation.
What are some alternatives?
fused-effects - A fast, flexible, fused effect system for Haskell
Exercism - Scala Exercises - Crowd-sourced code mentorship. Practice having thoughtful conversations about code.
ast-monad - A library for constructing AST by using do-notation
cond - Basic conditional operators with monadic variants.
freer-effects - An implementation of "Freer Monads, More Extensible Effects".
eff - 🚧 a work in progress effect system for Haskell 🚧
extensible-effects - Extensible Effects: An Alternative to Monad Transformers
liquidhaskell - Liquid Types For Haskell
haskell.nix - Alternative Haskell Infrastructure for Nixpkgs
linear - Low-dimensional linear algebra primitives for Haskell.
explicit-sharing - Explicit Sharing of Monadic Effects