ctiedt / retry

retry

Proof of concept for a Rust procedural macro to rerun a function if it fails. Supports functions returning Result or Option.

Usage

#[retry(3)]
fn might_fail() -> Result<(), SomeError> {
    /* ... */
}

This example will run up to four attempts of might_fail. You lose the information of possible errors. Instead, a function with the #[retry] macro will return that it has exceeded its number of retries.

Warning

This is just a proof of concept. Procedural macros are dangerous and I am no expert, so there are probably a lot of cases in which this crate will generate wrong code. Proceed at your own risk if you use it!