Simulate exception without `panic` in async Rust.
**DISCLAIMER**: This crate is just to implement my idea. It may not be a good practice.
Check [this blog](https://jason5lee.me/2022/03/11/rust-exception-async/) for the main idea.
**WARNING**: The sync implementation under `asex::sync` has many unsafe code. Use it as your own risk.
This project is distributed under the terms of both the MIT license and the Apache License (Version 2.0).