Attribute Macro openraft::add_async_trait

#[add_async_trait]

This proc macro attribute optionally adds Send bounds to a trait.

By default, Send bounds will be added to the trait and to the return bounds of any async functions defined within the trait.

If the singlethreaded feature is enabled, the trait definition remains the same without any added Send bounds.

Example

use openraft_macros::add_async_trait;

#[add_async_trait]
trait MyTrait {
    async fn my_method(&self) -> Result<(), String>;
}

The above code will be transformed into:

trait MyTrait {
    fn my_method(&self) -> impl Future<Output=Result<(), String>> + Send;
}

Note: This proc macro can only be used with traits.

Panics

This proc macro will panic if used on anything other than trait definitions.