Researchers at Brown University explore how async/await semantics diverge across modern programming languages, finding that even identical pseudocode produces different outputs in seven different runtimes. The paper, "A Design Space Exploration of Async/Await," highlights that no two languages agree on the behavior of basic async patterns like fire-and-forget tasks, challenging the assumption that async/await is a consistent paradigm.
Background
Async/await has become a standard concurrency pattern in modern languages like Rust, Python, Swift, and C#. This Brown University research project systematically compares how different language runtimes implement this paradigm.
- Source
- Lobsters
- Published
- Sep 9, 2026 at 11:22 PM
- Score
- 7.0 / 10