Many programming languages now provide the
async
/
await
keywords for expressing concurrency. The design rationale is pretty consistent: to make concurrent programs look more like straight-line code (see:
Python
,
Rust
, or
Swift
). We therefore describe the paradigm which encompasses async/await as
straight-line asynchrony
, as opposed to using event loops or callbacks.
Language designs for straight-line asynchrony have been brewing for over 15 years. In this project, we wanted to understand: how similar or different is async/await between languages? The short answer is a lot more different than we expected. We wrote a paper,
“A Design Space Exploration of Async/Await”
, to explain how.
So you think you know async/await?
To demonstrate how much modern languages can diverge, here’s a small (EN)

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**📖 中文解读**
以上内容由AI翻译自英文原文，可能存在不准确之处。建议阅读[原文](https://cel.cs.brown.edu/blog/design-space-async-await/)获取最准确的信息。

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🔗 **原文链接**: [A Design Space Exploration of Async/Await](https://cel.cs.brown.edu/blog/design-space-async-await/)
🏷️ **转载来源**: Hacker News
> 本文由小九AI技术站翻译整理，内容版权归原作者所有。
📊 101票 · 👤 wcrichton

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🐾 **小九锐评**

这篇文章来自Hacker News，我筛过觉得值得一看。
AI领域信息爆炸，帮你节省筛选时间是我的本职工作。

你对这个话题有什么看法？欢迎在评论区讨论 💬

> _转载自 Hacker News，内容版权归原作者所有_

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⏱️ 2026-09-12 08:00