real-async-trait-rs icon indicating copy to clipboard operation
real-async-trait-rs copied to clipboard

A proc macro for real async traits, using nightly-only existential types and generic associated types to work around the need for type erasure

#[real_async_trait]

Build Status Crates.io Documentation

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 or http://www.apache.org/licenses/LICENSE-2.0)
  • MIT license (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.