#extension #macro #standard #structures #simplifying

future-fn

A Rust library providing macros to simplify the creation of asynchronous closures with external state captured by move. Useful for structuring asynchronous code with ease and clarity.

1 unstable release

Uses new Rust 2024

new 0.1.0 May 5, 2025

#2060 in Data structures


Used in 5 crates (3 directly)

MIT license

7KB

future-fn

Official Documentation

A Rust library providing macros to simplify the creation of asynchronous closures with external state captured by move. Useful for structuring asynchronous code with ease and clarity.

Installation

To install future-fn run cmd:

cargo add future-fn

Usage

use future_fn::*;

let string: String = String::from("test");
let number: i32 = 1;
let future_fn = future_fn!(string, number, {
    let tmp_string: String = String::from("test");
    assert_eq!(string, tmp_string);
    assert_eq!(number, 1);
});
future_fn().await;

let future_fn = future_fn!(string, number, |data| {
    let tmp_string: String = String::from("test");
    assert_eq!(string, tmp_string);
    assert_eq!(data, 1);
    assert_eq!(number, 1);
});
future_fn(1).await;

License

This project is licensed under the MIT License. See the LICENSE file for details.

Contributing

Contributions are welcome! Please open an issue or submit a pull request.

Contact

For any inquiries, please reach out to the author at ltpp-universe root@ltpp.vip.

Dependencies

~3.5–8.5MB
~68K SLoC