dotty-cps-async VS Rx.NET

Compare dotty-cps-async vs Rx.NET and see what are their differences.


The Reactive Extensions for .NET (by dotnet)
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dotty-cps-async Rx.NET
8 45
123 5,656
- 1.4%
9.1 5.0
9 days ago 13 days ago
Scala C#
Apache License 2.0 MIT 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.


Posts with mentions or reviews of dotty-cps-async. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-10-18.
  • The case against Effect Systems (e.g., the IO data type)
    2 projects | | 18 Oct 2022
    Hmm, you can write direct-style code with monad: allows this, exists support libraries exist for near all well-known effect systems:, so you can use async/await with IO/ZIO the same as with Future. Although in IO style, any operation that mutates state is async, it's hard to write code where you should place `await` near each line. And it looks like automatic coloring is a too radical change of concepts for most functional programmers. The option to allow using <- in the direct style may be more popular, but this requires changes to the scala core. Another question - are we need effective systems to be present in each program in industrial-style development? Here I agree that mostly no.
  • New Scala 3 Codebases
    6 projects | | 17 Feb 2022
  • Dotty-cps-async 0.9.7 is released.
    4 projects | | 26 Jan 2022
    This is a generic async/await transformer for scala3 which allows using effectful monads in the direct style. URL: ( )
  • Language-assisted Flattening
    2 projects | | 14 Jul 2021
    dotty-cps-async [rssh/dotty-cps-async ] with automatic coloring do something very similar in two steps. Automatic coloring defines implicit conversion F[A] => A as x => await(x)(m). The compiler inserts those awaits inside async blocks and then eliminates them later via cps-transform. Exists some limitations which we need to add for effect monads like IO (we don't want run effect twice and don't want to screw semantics of effects by extra memoizing). So, if your language has a possibility to implement effect monads, then you need a possibility to restrict using Flattenable.


Posts with mentions or reviews of Rx.NET. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-10-21.

What are some alternatives?

When comparing dotty-cps-async and Rx.NET you can also consider the following projects:

Dynamic Data - Reactive collections based on Rx.Net

RxJS - A reactive programming library for JavaScript

ObservableComputations - Cross-platform .NET library for computations whose arguments and results are objects that implement INotifyPropertyChanged and INotifyCollectionChanged (ObservableCollection) interfaces.

duckdb - DuckDB is an in-process SQL OLAP Database Management System

redux-phoenix - Restore redux state from previous sessions like a phoenix from ashes.

axios - Promise based HTTP client for the browser and node.js

scala3-example-project - An example sbt project that compiles using Dotty

Disruptor-cpp - Port of LMAX Disruptor to C++

benchmarks - Latency benchmarks for messaging

topshell - TopShell - a purely functional, reactive scripting language

scala-3-migration-guide - The Scala 3 migration guide for everyone.

framer/motion - Open source, production-ready animation and gesture library for React