ghc-proposals
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| ghc-proposals | core-libraries-committee | |
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| 160 | 60 | |
| 672 | 95 | |
| 0.7% | - | |
| 9.2 | 5.3 | |
| 4 days ago | 3 days ago | |
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ghc-proposals
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Functional Semantics in Imperative Clothing (Richard Feldman)
This is really just a matter of how much syntax sugar you want to implement. Idris has this already, and there’s a proposal to add it to Haskell too [0]. But none of this changes the core properties of the system which make it monadic.
[0] https://github.com/ghc-proposals/ghc-proposals/issues/527
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An alternative front end for Haskell?
> I think Haskell needs a way to graduate (or retire) language extensions
https://github.com/ghc-proposals/ghc-proposals/pull/601
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Or patterns proposal: Prefix signalling or just infix?
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.
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Monthly Hask Anything (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.
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Is there any way to build a simple additive prelude?
The local modules proposal imo is excellent as-is.
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Interview and AMA with Simon Peyton Jones
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)?
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Amendmend proposal: Changed syntax for Or patterns
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
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MSc Dissertation: Comprehending Pure Functional Effect Systems
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.
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Trouble understanding function import in Haskell
I do hope qualified exports are available someday: https://github.com/ghc-proposals/ghc-proposals/pull/283
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{-# WARNING #-} for Data.List.{head,tail} in future GHC 9.8
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.
core-libraries-committee
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An alternative front end for Haskell?
> But the obvious and easy solution in the current language would be to return Maybe, which isn't done because there's a feeling that it's not a big enough step to be worth the effort, and dependent types will eventually solve this anyway.
That's not why it's not done. listToMaybe already exists[1] and you can't change the type of head without breaking everyone's code, so head in the next version of base will come with a warning[2] and that's about as much as you can do whilst still maintaining backwards compatibility.
[1] https://www.stackage.org/haddock/lts-21.14/base-4.17.2.0/Dat...
[2] https://github.com/haskell/core-libraries-committee/issues/8...
- Proposal: extend Data.Bitraversable API with firstA and secondA
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Core Libraries Committee (CLC) Update: June 2023
The proposal to add quantified superclasses to Bifoldable and Bitraversable has been reopened too. https://github.com/haskell/core-libraries-committee/issues/93
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Monthly Hask Anything (June 2023)
My understanding is any change to base requires an explicit proposal, and if it involves adding stuff to Data.List that could break other packages, that will be taken into account. But it's not a dealbreaker, e.g. a recent proposal to add Data.List.unsnoc got accepted.
- Proposal: add foldl' to Prelude
- プロポーザル: Data.List.unsnoc :: [a] -> Maybe ([a], a) を追加する
- Proposal: add Data.List.unsnoc :: [a] -> Maybe ([a], a)
- Proposal: add instance {Enum, Bounded, Num, Real, Integral} Compose f g a
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The Haskell Unfolder Episode 2: quantified constraints
Bifunctor has one as well (issue)
- Proposal: expose sized integer types {Int,Word}{8,16,32,64} from Prelude
What are some alternatives?
haskell-language-server - Official haskell ide support via language server (LSP). Successor of ghcide & haskell-ide-engine.
unfolder - Repository with code snippets that accompany episodes of The Haskell Unfolder
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
snake-fury - a challenge for Haskell beginners
rio-orphans - A standard library for Haskell
julia - The Julia Programming Language
hoogle - Haskell API search engine
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).
frp-zoo - Comparing many FRP implementations by reimplementing the same toy app in each.
cardano-node - The core component that is used to participate in a Cardano decentralised blockchain.
Cabal - Official upstream development repository for Cabal and cabal-install
idris - A Dependently Typed Functional Programming Language