ghc-proposals vs fused-effects

ghc-proposals

Proposed compiler and language changes for GHC and GHC/Haskell (by ghc-proposals)

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haskell.org

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fused-effects

A fast, flexible, fused effect system for Haskell (by fused-effects)

Control Fused Haskell Effects algebraic-effects

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ghc-proposals		fused-effects
	Project
159	Mentions	3
670	Stars	633
0.4%	Growth	0.2%
9.1	Activity	4.5
6 days ago	Latest Commit	about 1 month ago
Python	Language	Haskell
-	License	BSD 3-clause "New" or "Revised" 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.

ghc-proposals

Posts with mentions or reviews of ghc-proposals. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-10-07.

An alternative front end for Haskell?
3 projects | news.ycombinator.com | 7 Oct 2023

> I think Haskell needs a way to graduate (or retire) language extensions
https://github.com/ghc-proposals/ghc-proposals/pull/601
Or patterns proposal: Prefix signalling or just infix?
2 projects | /r/haskell | 17 May 2023

Additionally, while this proposal is focused on the simple implementation and so in the current proposal or patterns do not bind any variables as per #522, if we do get settled on syntax and then later wish to expand to allow binding variables as in #43, then the syntax is again clean and discoverable.
Monthly Hask Anything (May 2023)
1 project | /r/haskell | 6 May 2023

Yeah, a relatively natural thing would be to be able to opt-in to having the HasField instances be available in all contexts. The (not yet implemented, but accepted) "Modifiers" GHC proposal might be nice for that.
Is there any way to build a simple additive prelude?
1 project | /r/haskell | 1 May 2023

The local modules proposal imo is excellent as-is.
Interview and AMA with Simon Peyton Jones
1 project | /r/haskell | 22 Apr 2023

Why would you drop TypeFamilies? It seems fairly popular, given that it was just one vote short of getting added to GHC2021. Do you consider it a less-ideal compromise, that is subsumed by your second proposal (Core with GRTT)?
Amendmend proposal: Changed syntax for Or patterns
2 projects | /r/haskell | 14 Apr 2023

as syntax is contentious a topic as ever, David (the main proposal author) and I would like to invite you to give your input on https://github.com/ghc-proposals/ghc-proposals/pull/585, where we propose to change the syntax of the accepted proposal #522 introducing Or patterns. In particular, we'd like to know
MSc Dissertation: Comprehending Pure Functional Effect Systems
1 project | /r/haskell | 9 Apr 2023

This looks great, congratulations on completing it! I assume you didn’t get an opportunity to evaluate the delimited continuations based eff library? It would’ve been nice to see Cont included as one of the effects covered, though perhaps not available in all the systems you looked at? Maybe some future work.
Trouble understanding function import in Haskell
1 project | /r/haskell | 31 Mar 2023

I do hope qualified exports are available someday: https://github.com/ghc-proposals/ghc-proposals/pull/283
{-# WARNING #-} for Data.List.{head,tail} in future GHC 9.8
3 projects | /r/haskell | 30 Mar 2023

Right. Being able to disable "custom type warnings" at use sites was part of an earlier proposal (https://github.com/ghc-proposals/ghc-proposals/pull/454) but it ended up being shelved.
Foldr type level implementation
2 projects | /r/haskellquestions | 30 Mar 2023

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.

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.
Haskell doesn't make sense without pure functions
4 projects | /r/haskell | 2 Oct 2021
Monthly Hask Anything (June 2021)
16 projects | /r/haskell | 2 Jun 2021

What are some alternatives?

When comparing ghc-proposals and fused-effects you can also consider the following projects:

haskell-language-server - Official haskell ide support via language server (LSP). Successor of ghcide & haskell-ide-engine.

polysemy - :gemini: higher-order, no-boilerplate monads

ihp - 🔥 The fastest way to build type safe web apps. IHP is a new batteries-included web framework optimized for longterm productivity and programmer happiness

eveff - Efficient Haskell effect handlers based on evidence translation.

rio-orphans - A standard library for Haskell

eff - 🚧 a work in progress effect system for Haskell 🚧

julia - The Julia Programming Language

freer-simple - A friendly effect system for Haskell

hoogle - Haskell API search engine

control-monad-free - Free monads and monad transformers

ghc - Mirror of the Glasgow Haskell Compiler. Please submit issues and patches to GHC's Gitlab instance (https://gitlab.haskell.org/ghc/ghc). First time contributors are encouraged to get started with the newcomers info (https://gitlab.haskell.org/ghc/ghc/wikis/contributing).

control-monad-exception - Explicitly Typed exceptions as a library