https://github.com/4ldo2/real-async-trait-rs

A proc macro for real async traits, using nightly-only existential types and generic associated types to work around the need for type erasure
https://github.com/4ldo2/real-async-trait-rs

async-trait existential-types generic-associated-types higher-kinded-types hkt proc-macro proc-macro-attributes

Last synced: about 2 months ago
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A proc macro for real async traits, using nightly-only existential types and generic associated types to work around the need for type erasure

• Host: GitHub
• URL: https://github.com/4ldo2/real-async-trait-rs
• Owner: 4lDO2
• License: apache-2.0
• Created: 2020-07-14T09:43:39.000Z (almost 5 years ago)
• Default Branch: master
• Last Pushed: 2022-06-11T15:46:31.000Z (almost 3 years ago)
• Last Synced: 2024-10-12T14:38:58.850Z (7 months ago)
• Topics: async-trait, existential-types, generic-associated-types, higher-kinded-types, hkt, proc-macro, proc-macro-attributes
• Language: Rust
• Homepage:
• Size: 64.5 KB
• Stars: 45
• Watchers: 3
• Forks: 3
• Open Issues: 4
• Metadata Files:
  • Readme: README.md
  • License: LICENSE-APACHE

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README

        
# `#[real_async_trait]`

[![Build Status](https://travis-ci.org/4lDO2/real-async-trait-rs.svg?branch=master)](https://travis-ci.org/4lDO2/real-async-trait-rs)

[![Crates.io](https://img.shields.io/crates/v/real-async-trait.svg)](https://crates.io/crates/real-async-trait)

[![Documentation](https://docs.rs/real-async-trait/badge.svg)](https://docs.rs/real-async-trait/)

This nightly-only crate provides a proof-of-concept proc macro attribute that

allows async functions within traits, without the possible runtime overhead of

wrapping everything in a `Box` and erasing the types. This is made possible

thanks to the unstable `generic_associated_types` and `type_alias_impl_trait`

nightly features.

## License

Licensed under either of

 * Apache License, Version 2.0

   ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)

 * MIT license

   ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)

at your option.

## Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted

for inclusion in the work by you, as defined in the Apache-2.0 license, shall be

dual licensed as above, without any additional terms or conditions.