promesa
A promise library & concurrency toolkit for Clojure and ClojureScript. (by funcool)
cloroutine
Coroutine support for clojure (by leonoel)
| promesa | cloroutine | |
|---|---|---|
| 4 | 11 | |
| 479 | 219 | |
| 1.3% | - | |
| 7.7 | 0.0 | |
| about 1 month ago | about 1 year ago | |
| Clojure | Clojure | |
| Mozilla Public License 2.0 | Eclipse Public License 2.0 |
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.
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.
promesa
Posts with mentions or reviews of promesa.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-01-09.
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Comparison of manifold and clojure.core.async
Another thing is that Promesa is yet another clojure async library that seems to be actively developed lately and as of recently has its own CSP implementation that seem to fill a similar role as core.async. I haven't used the CSP stuff much but the core promesa library is a solid minimal wrapper on native futures (ie CompleteableFuture on the JVM), filling the role of the deferred half of Manifold.
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How to deal with many threads at the same time?
Promesa might be a good fit too: https://github.com/funcool/promesa
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GitHub - athos/kitchen-async: A Promise library for ClojureScript, or a poor man's core.async
https://github.com/funcool/promesa is quite similar but does not depend on core.async, it just uses vanilla Promises. It is the built-in promise library in nbb
- 6 Years of Professional Clojure
cloroutine
Posts with mentions or reviews of cloroutine.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-04-30.
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ClojureRS – Clojure interpreter implemented in Rust
Thanks for sharing! I think these restarts could definitely be implemented as a library in Clojure with the help of a coroutine library like https://github.com/leonoel/cloroutine#guides
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GitHub - leonoel/cloroutine: Coroutine support for clojure
Do you mean the example here https://github.com/leonoel/cloroutine/blob/master/doc/01-generators.md , with the `*tail* binding? It took me a long time looking at it to finally grok it, and it's really hard to explain in English but basically when the coroutine comes across one of these symbols that are "breaks" (in our case, "yield" is such a breaking symbol), then it will pause the coroutine, and actually call what the symbol points to (the implementation of "yield"), which returns (cons x *tail*), and keep in mind that it is all run within a recursive call to gen-seq where *tail* is bound to a lazy-seq of the remainder of the generator (binding [*tail* (gen-seq gen)] (gen)), it's pretty confusing but yeah just have to stare at it for a long time I think haha.
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CLJ-2555: clojure.core/iteration · clojure/clojure@e45e478
I think Clojure is really missing python/js-style generators, like what is implemented in https://github.com/leonoel/cloroutine/blob/master/doc/01-generators.md
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Real-life use cases for CLJS macros
The next level up is core.async go blocks which compile your AST to a state machine. Also see cloroutine which also compiles the AST to a state machine or something, one of the tutorials uses cloroutine to add async/await to Clojure.
- Continuations in Clojure
- 6 Years of Professional Clojure
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Common Lisp Style Conditions+Restarts in Clojure
Coroutines are a more general concept, and can be used to implement conditions/delimited continuations. There’s an example in their docs.
What are some alternatives?
When comparing promesa and cloroutine you can also consider the following projects:
core.async - Facilities for async programming and communication in Clojure
zio-schema - Compositional, type-safe schema definitions, which enable auto-derivation of codecs and migrations.
kitchen-async - A Promise library for ClojureScript, or a poor man's core.async
farolero - Thread-safe Common Lisp style conditions and restarts for Clojure(Script) and Babashka.
Shapeless - Generic programming for Scala
ClojureRS - Clojure, implemented atop Rust (unofficial)
logseq - A local-first, non-linear, outliner notebook for organizing and sharing your personal knowledge base. Use it to organize your todo list, to write your journals, or to record your unique life.
clojure-scheme - Clojure to Scheme to C to the bare metal.
await-cps - async/await for continuation-passing style functions
pure-conditioning - A simple, fast, purely functional condition / restart system for Clojure.