deprecated-coalton-prototype
core.typed
deprecated-coalton-prototype | core.typed | |
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9 | 5 | |
216 | 1,277 | |
- | 0.0% | |
1.4 | 0.0 | |
over 2 years ago | over 2 years ago | |
Common Lisp | Clojure | |
MIT License | Eclipse Public License 1.0 |
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deprecated-coalton-prototype
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The thing is, if you start with Common Lisp, it's pretty easy to write a DSL that adds the constraints and provides the guarantees that you need. [..] Maybe all I had to do to turn CL into Haskell is implement the Hindley-Milner algorithm.
can't jerk
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Hell Is Other REPLs
I used to use CL quite a bit, but have since abandoned it for Haskell, so I'm a bit biased.
There's a number of issues with that:
- I'd be missing all the optimizations that can be performed due to purity.
- There's more to Haskell's type system than just vanilla Hindley-Milner, and the implementation of it isn't particularly trivial. https://github.com/stylewarning/coalton is the closest thing and it's still missing a large amount of the type system.
- Doing the implementation would be a significant amount of work to get it to integrate well with the language, and it would be a layer tightly glued on top instead of integrated with the language.
- A major part of Haskell is the standard library, a good chunk of the semantics of Haskell people use on a day to day basis, like monads and etc, are a part of the standard library.
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Six years of professional Clojure development
This looks like something Common Lisp does better, however I have too little Clojure experience to compare. CL (and SBCL in particular) does "good enough" static type checks, it throws warning at compile time (when we compile one function with a keystroke). We can also precise our function types gradually. It isn't a HM type system (Coalton[1] could be it) but it's already great (compared to no compile-time types at all).
Oh, about interactive development: that's sure, CL shines here. Objects get updated (lazily) after a class change, we can install Quicklisp libraries without restarting the image, etc. It's very smooth.
1: https://github.com/stylewarning/coalton
- Common lisp or Racket as a first lisp?
- Coalton is a dialect of ML embedded in Common Lisp
- Coalton – a dialect of ML embedded in Common Lisp
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What would you like to see in a CL dev environment?
Help out with Coalton.
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Stupid protocols for CL - Is this a bad idea?
If you like this kind of stuff, maybe you can help implement type classes in Coalton.
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On repl-driven programming
(there's a work-in-progress library to add a dialect of ML on top of CL: coalton)
core.typed
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Does Go Have Subtyping?
...and Typed Racket is a really powerful type system (see refinement types[4]). So, I thought it's just a matter of time for Clojure to get to that level of power and support. It should be much easier to do this to Clojure than to Ruby, given that you have a working example of how to do it well. So I'm really surprised Clojure isn't gradually typed by now, with most of the code being annotated and type-checked at compile time.
[1] https://github.com/clojure/core.typed
[2] https://github.com/typedclojure/typedclojure
[3] https://github.com/typedclojure/typedclojure/blob/main/examp...
[4] https://docs.racket-lang.org/ts-reference/Experimental_Featu...
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What's the idiomatic way to think about type safety/domain modeling in Clojure?
gradual typing (spec/schema/malli) or actual type systems like https://github.com/clojure/core.typed . I don't use them too much though.
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Six years of professional Clojure development
Do you know about the Typed Clojure project? More or less Racket's contract system, for Clojure:
https://github.com/clojure/core.typed
To me, it's one of the great testaments to the power of Lisp that you can bolt on a static type system after the fact.
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Is Clojure worth learning?
There's also https://github.com/clojure/core.typed Typed Clojure
What are some alternatives?
paip-lisp - Lisp code for the textbook "Paradigms of Artificial Intelligence Programming"
janet - A dynamic language and bytecode vm
immer - Postmodern immutable and persistent data structures for C++ — value semantics at scale
clj-kondo - Static analyzer and linter for Clojure code that sparks joy
yale-haskell - HASKELL: Yale Haskell system written in Lisp
inspector - Turn Clojure specs into clj-kondo type annotations
kandria - A post-apocalyptic actionRPG. Now on Steam!
mun - Source code for the Mun language and runtime.
austral - Systems language with linear types and capability-based security.
web-development-with-clojure - Repository for the examples from the book Web Development with Clojure, 2nd edition