Testing Needed for Async Closures in Rust: RFC 3668 Update
Discover how to contribute to async closures development in Rust by testing RFC 3668 features.
Published 3 months ago by @rustlang on blog.rust-lang.org
Abstract
The blog post highlights the approval of RFC 3668 'Async Closures' by Rust's Lang team. It explains the need for async closures, their limitations, and the call for testing on nightly Rust builds. The update focuses on introducing async fn traits, addressing limitations, and seeking community feedback through testing. The post also outlines how developers can assist in testing these new features, enabling them to seamlessly integrate async closures in their Rust projects.
Results
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Discussion
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Relevance
This article is crucial as it notifies you about the latest updates on async closures in Rust, emphasizing a call for testing to improve future Rust functionalities. By participating in testing, you can contribute to the development of async closures and potentially resolve limitations and challenges faced by developers using async functions.
Applicability
To implement insights from this article, you should start by testing out the new async closures features on the updated nightly Rust compiler. Enable the 'async_closure' feature and make necessary adjustments to your closures and functions to align with the new async fn traits. This testing process can help you prepare for the future adoption of improved async closures in your Rust projects.
Risks
One risk to consider is the potential incompatibility with existing codebases when transitioning to the new async closures syntax. Additionally, the limitations in naming output futures and closure signature inference might lead to challenges in certain scenarios. Ensure thorough testing and consider the impact on your projects before fully embracing these new features.
Conclusion
By actively participating in testing async closures and async fn traits, you can influence the future direction of async development in Rust. The introduction of these features hints at greater flexibility and efficiency in handling async operations, paving the way for more robust and expressive Rust codebases. Engaging in testing now can position your projects well for leveraging the enhanced capabilities that async closures will bring in future Rust versions.
References
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