https://github.com/Pauan/rust-signals

Zero-cost functional reactive Signals for Rust
https://github.com/Pauan/rust-signals

Last synced: 3 days ago
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Zero-cost functional reactive Signals for Rust

• Host: GitHub
• URL: https://github.com/Pauan/rust-signals
• Owner: Pauan
• License: mit
• Created: 2018-03-08T23:23:56.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2024-04-12T01:23:56.000Z (7 months ago)
• Last Synced: 2024-04-14T10:01:23.190Z (7 months ago)
• Language: Rust
• Homepage:
• Size: 473 KB
• Stars: 582
• Watchers: 16
• Forks: 36
• Open Issues: 34
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

        
[![crates.io](https://img.shields.io/crates/v/futures-signals.svg)](https://crates.io/crates/futures-signals)

[![docs.rs](https://docs.rs/futures-signals/badge.svg)](https://docs.rs/futures-signals)

This is a Rust crate that provides zero-cost [FRP](https://quickbirdstudios.com/blog/what-is-functional-reactive-programming-frp/)

Signals which are built on top of the [futures](https://crates.io/crates/futures) crate.

Hold on, zero-cost? Yup, that's right: if you don't use a feature you don't pay any performance cost,

and the features that you *do* use are as fast as possible. Signals are ***very*** efficient.

What is a Signal? It is a *value that changes over time*, and you can be efficiently

notified whenever its value changes.

This is useful in many situations:

* You can automatically serialize your program's state to a database whenever it changes.

* You can automatically send a message to the server whenever the client's state changes, or vice versa. This

  can be used to automatically, efficiently, and conveniently keep the client and server's state in sync.

* A game engine can use Signals to automatically update the game's state whenever something changes.

* You can easily represent continuous input (such as the current temperature, or the current time) as a Signal.

* If you create a GUI, you can use Signals to automatically update the GUI whenever your state changes, ensuring

  that your state and the GUI are always in sync.

* You can use [dominator](https://crates.io/crates/dominator) to create web apps and automatically keep them in

  sync with your program's state.

* And many more situations!

The best way to learn more is to read [the tutorial](https://docs.rs/futures-signals/^0.3.21/futures_signals/tutorial/index.html).