Rust周报 381(译)

• this-week-in-rust
• 日期：2021-03-10
• 原文：381 期

你好，欢迎再来一期本周的螃蟹行情！Rust是一种追求三位一体的系统语言：安全性、并发性和速度。这是它的进展和社区的每周总结。有什么要说的吗？推特@ThisWeekInRust或向我们发送请求。 想参与吗？我们热爱贡献.

这本周的螃蟹行情是在在 Github 上公开的。如果你在本周的问题中发现任何错误，请提交 PR。

Updates from Rust Community

Official

• Planning the Rust 2021 Edition

Newsletters

• This Month in Rust GameDev #19 - February 2021
• This Month in Rust OSDev (February 2021)
• RiB Newsletter #21 - More Rust and blockchains

Project/Tooling Updates

• rust-analyzer Changelog #67
• rust-gpu v0.3
• cargo-generate 0.6.0
• Automatically generate APIs for datasets using Rust, Arrow and Datafusion

Observations/Thoughts

• Serverless Rust Testing
• Rust’s Type System is Turing（图灵）-Complete
• Why I rewrote my Rust keyboard firmware in Zig: consistency（合理性）, mastery（精通）, and fun
• Calling a private Rust function from outside of its module
• Safe, Flexible Aliasing with Deferred Borrows
• Evaluating Memory Models for Graph-Like Data Structures in the Rust Programming Language: Performance and Usability
• Rusts Universes
• Giganotes 应用的强力助推 Rust

Rust Walkthroughs

• OS in Rust: Incorporate VGA buffer: Part-6
• Writing a 3D Shooter using rg3d - #1 - Character Controller
• Writing a 3D Shooter using rg3d - #2 - Weapons
• Writing Pong in Rust for my OS Written in Rust
• Replacing FastAPI with Rust: Part 6 - AWS Lambda
• Creating an Iterator in Rust
• Building an OpenStreetMap app in Rust, Part V
• [video] learning rust: structs and traits
• [video] answers to stackoverflow’s top rust programming questions explained
• [video] (live coding) learning timely dataflow
• [FA] [video] Rust in Farsi ツ

Papers and Research Projects

• Creusot is a tool for deductive verification of Rust code
• egg, a Rust library ，以电子图的角度，观察等式的不同写法

Miscellaneous

• Debian running on Rust coreutils
• A friend and I made pipes-rs, a Rust clone of pipes.sh
• 半数的 curl’s vulnerabilities（安全漏洞） 为 C 的错误
• [video] usenix enigma 2021 - quantifying memory unsafety and reactions to it

Crate of the Week

这周的箱子是Sorceress，用于声音合成和算法合成的 Rust 环境。

谢谢Zelda Hessler的建议！

提交您下周的建议和投票！

Call for Participation

一直想为开源项目做贡献，但不知道从哪里开始？每周我们都会重点介绍 Rust 社区中的一些任务，供您选择和开始！

其中一些任务也可能有导师，请访问任务页面以获取更多信息。

• rust-analyzer - Optimize MBE (macro by example) performance
• Our own “Papers and Research Projects” section needs filling!

如果您是 Rust 项目的所有者并且正在寻找贡献者，请提交任务这里。

Updates from Rust Core

共有 369 个拉取请求在上周合并

• upgrade to LLVM 12
• backport some LLVM compile-time improvements
• add natvis for Result, NonNull, CString, CStr, and Cow
• 将关于 unknown attributes 的错误，改为一个 warning
• shrink the size of Rvalue by 16 bytes
• move check only relevant in error case out of critical path
• add assert_matches! macro
• 对 Write impl 泛化，从 Vec<u8> to Vec<u8, A>
• 避免不必要的 Vec 构造 in BufReader
• improve slice.binary_search_by()’s best-case performance to O(1)
• add {BTreeMap, HashMap}::try_insert
• hashbrown: add try_insert
• cargo: fix filter_platform to run on targets other than x86
• make rustdoc lints a tool lint instead of built-in

Rust Compiler Performance Triage

正面的，但安静的一周。许多性能改善，尽管都是从以前的退步中获得的。我们需要继续关注汇总，因为有两个汇总引起了小的性能变化。

分流由 @rylev。修订范围：edeee..86187

1 个退步，4 个改进，1 个混合

其中 2 个汇总

Approved RFCs

对 Rust 的更改跟随 RustRFC (request for comments) process。以下是本周批准实施的 RFC：

• Linking modifiers for native libraries

Final Comment Period

每周the team宣布即将做出决定的 RFC 和主要 PR 的“最终意见征询期”。立即发表您的意见。

RFCs

• Change visibility scoping rules for macro_rules macros
• Make the authors field optional

Tracking Issues & PRs

• [disposition: merge] rustdoc: allow list syntax for #[doc(alias)] attributes
• [disposition: merge] slice: Stabilize IterMut::as_slice.
• [disposition: merge] Implement Extend and FromIterator for OsString
• [disposition: merge] Emit errors/warns on some wrong uses of rustdoc attributes
• [disposition: close] resolve: allow super in module in block to refer to block items
• [disposition: close] [Edition vNext] 考虑弃用，奇怪的嵌套 items

New RFCs

本周没有提议新的 RFC。

Quote of the Week

很好笑，每次我遇到令人困惑的 borrow error 时，都会阻止我犯下真实的，严重的错误

但是可能需要一些思考才能弄清楚那个错误到底是什么。

有时 borrow checker 感觉像是一个在山上，明智的圣人用谜语提供建议 。嘻嘻

– Jarrett on discord

Thanks to Daniel H-M for the suggestion.

Please submit quotes and vote for next week!

This Week in Rust is edited by: nellshamrell, llogiq, and cdmistman.

Discuss on r/rust