dunai
klister
dunai | klister | |
---|---|---|
6 | 7 | |
190 | 121 | |
- | - | |
8.8 | 5.9 | |
13 days ago | 11 days ago | |
Haskell | Haskell | |
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.
dunai
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Interactive animations
Yes, and the new library dunai was just mentioned in this subreddit days ago.
- [ANN] dunai-0.11.0, dunai-test-0.11.0, bearriver-0.14.2
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Looking for projects that need developers.
I'd love to have help with Yampa & Dunai. Both are related FRP frameworks. Yampa has been around for 20 years, dunai has been around for 8. Both have regular releases every 2 months.
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[ANN] dunai-0.10.1 and bearriver-0.14.1
The github repo is located at: https://github.com/ivanperez-keera/dunai
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[ANN] dunai-0.9.0, dunai-test-0.9.0, bearriver-0.13.6
Release: https://github.com/ivanperez-keera/dunai/releases/tag/v0.9.0.
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[ANN] Yampa 0.13.6
If you haven't, I recommend you take a look at dunai . Dunai allows easier extension using custom monads, and has specific support for ExceptT.
klister
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Interactive animations
Yeah, that project is pretty much at the bottom of my list, unfortunately. My top projects these days are mgmt, klister, recursion-schemes, and hint... And that's already too much!
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Rust Tests Itself (Kind of!)
case is a special form, ie a bit of core syntax, but, interestingly, data is not. (It is presumably a macro; typechecking is actually done as a part of macro expansion.) The syntax remains pretty uniform. Or, in Klister, type ascription is done via normal S-expression syntax with a form called the, as (the $type $expression); again, the syntax is uniform.
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GHC Hacking
Shameless plug: we don't have that problem in Klister, because our equivalent to main is a run macro which runs an IO action, and your alternate prelude can define its own run macro which expects an IO action from your alternate prelude.
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What's the preferred way of getting powerful lisplike macros on Haskell?
Klister is very similar to Hackett, but implemented in Haskell instead of Racket, and my most recent PR is from 20 days ago, if that's the metric which counts for you. Still very much of a WIP though.
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How do you typecheck a macro?
You might be interested in Klister: https://github.com/gelisam/klister
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Using defmacro's &environment argument to implement Racket's hygienic macro expansion system?
I've now also found an implementation for klister, which is meant to interleave type checking with macro expansion.
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Haskell doesn't have macros
In Klister, which already has Scheme-like macros and Haskell-like types (polymorphism, algebraic types and higher-kinded types, but not yet fancier types like RankNTypes and GADTs), our plan to get the best of both worlds (lexical syntax and typed ASTs) is to separate parsing from macro evaluation. That is, users write their programs using the surface syntax of s-expressions, parsers parse those into typed ASTs, and macros are typed by the type of the ASTs they receive as input and produce as output. At this stage this is only a research idea, I don't know if that's going to work out yet, but I hope so!
What are some alternatives?
reflex - Interactive programs without callbacks or side-effects. Functional Reactive Programming (FRP) uses composable events and time-varying values to describe interactive systems as pure functions. Just like other pure functional code, functional reactive code is easier to get right on the first try, maintain, and reuse.
rakudo - 🦋 Rakudo – Raku on MoarVM, JVM, and JS
Yampa - Functional Reactive Programming domain-specific language for efficient hybrid systems
aith - [Early Stages] Low level functional programming language with linear types, first class inline functions, levity polymorphism and regions.
reactive-banana - Library for functional reactive programming in Haskell.
unseemly - Macros have types!
DefendTheKing - A simple multiplayer RTS game
hackett - WIP implementation of a Haskell-like Lisp in Racket
reactive-bacon - FRP (functional reactive programming) framework inspired by RX and Iteratee
coalton - Coalton is an efficient, statically typed functional programming language that supercharges Common Lisp.
rhine - Haskell Functional Reactive Programming framework with type-level clocks
srfi-46 - SRFI 46 for Common Lisp: Basic Syntax-rules Extensions