gpm
genawaiter-proc-macro
cargo install genawaiter-proc-macro
gpm

genawaiter-proc-macro

Stackless generators on stable Rust.

by John Simon

0.99.1 (see all)License:MIT/Apache-2.0
cargo install genawaiter-proc-macro
Readme

genawaiter

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This crate implements stackless generators (aka coroutines) in stable Rust. Instead of using yield, which won't be stabilized anytime soon, you use async/await, which is stable today.

Features:

  • supports resume arguments and completion values
  • allocation-free
  • no runtime dependencies
    • no compile-time dependencies either, with default-features = []
  • built on top of standard language constructs, which means there are no platform-specific shenanigans

Example:

let odd_numbers_less_than_ten = gen!({
    let mut n = 1;
    while n < 10 {
        yield_!(n); // Suspend a function at any point with a value.
        n += 2;
    }
});

// Generators can be used as ordinary iterators.
for num in odd_numbers_less_than_ten {
    println!("{}", num);
}

Result:

See the docs for more.

Development

Install prerequisites

Install the pre-commit hook

pre-commit install

This installs a Git hook that runs a quick sanity check before every commit.

Run the app

cargo run

Run the tests

cargo test

GitHub Stars

305

LAST COMMIT

2yrs ago

MAINTAINERS

1

CONTRIBUTORS

5

OPEN ISSUES

11

OPEN PRs

2
VersionTagPublished
0.99.1
2yrs ago
0.99.0
2yrs ago
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