|5 days ago||about 19 hours ago|
|BSD 3-clause "New" or "Revised" License||BSD 3-clause "New" or "Revised" 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.
Functional Declarative Design: A Comprehensive Methodology for Statically-Typed Functional Programming Languages
4 projects | /r/haskell | 2 Jun 2023
Thirdly, composing arbitrary effects without losing state is really, really difficult. Things are fine when you limit yourself to State and Reader, sure, but once you start with nondeterminism you’ll discover it’s shockingly easy to produce behaviors that are baffling unless you’ve spent a preposterous amount of time thinking about this stuff. (I’ve been bitten in prod by silent state-dropping bugs, and rarely have I been more flummoxed.) Consider this example, which produces silent changes in the semantics of <|> depending on whether you use it inside or outside of a higher-order effect. Every single effect library (besides the still-unreleased eff) gets certain combinations of effects + nondeterminism wrong. You could make the argument that most people don’t use nondeterministic monads, but eDSLs really shine when you have access to them, as you can turn a concrete interpreter to an abstract one fairly easily.
Introduction to Doctests in Haskell
6 projects | /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 | /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 | /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 | /r/haskell | 2 Jun 2021
Structuring Code with ZIO & ZLayers
3 projects | /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.
LiquidHaskell plugin build failed
I think text-format is abandon, when I checked the LiquidHaskell repo in GitHub it looks like they removed it from the latest un-released version PR#1789.
master should already be GHC 9 ready, it just so it happens that we didn't released it on Hackage due to the fact that, practically speaking, GHC 9.0.2 is not very widely used as I think we had some minor issues, but in principle it should work, at least with cabal: https://github.com/ucsd-progsys/liquidhaskell/blob/develop/cabal.ghc9.project
There is a Could not resolve dependencies problem. (Details are in the github issue👈)
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.
freer-simple - A friendly effect system for Haskell
ats-format - ATS source code formatter
language-thrift - Haskell parser for the Thrift IDL format.
stylish-haskell - Haskell code prettifier [Moved to: https://github.com/haskell/stylish-haskell]
ast-monad - A library for constructing AST by using do-notation
language-lua - Lua parser and pretty-printer
frp-arduino - Arduino programming without the hassle of C.