A Design Space Exploration of Async/Await

Lobsters reports a new arXiv paper that maps the design space of straight‑line asynchrony, the async‑await pattern found in many modern languages. The authors dissect nine dimensions that affect how asynchronous functions are called, run, and terminated, showing that languages that look similar can behave quite differently. By presenting concrete examples and a formal semantics, the work aims to clarify subtle semantic consequences for developers and language designers. Ultimately, the taxonomy is intended to help programmers and language theorists better navigate the evolving landscape of async‑await.

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