Rust周报 380(译)

• this-week-in-rust
• 日期：2021-03-03
• 原文：380 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

本周没有新闻通讯。

Official

• Const generics MVP hits beta!
• [Inside] lang team march update

Project/Tooling Updates

• IntelliJ Rust Changelog #142
• rust-analyzer changelog #66
• Knurling-rs changelog #18
• Last Month in Flott - March 2021
• RampMaker 0.2 - Stepper Motor Acceleration Ramp Generator

Observations/Thoughts

• Why we built the core auth library in Rust (interview with CTO of Oso)
• Data Manipulation: Pandas vs Rust
• 快速 Rust
• Evolution of Kube
• Temporal RDO（失真率优化）update optimization
• Introducing The Calypso Chronicles（自写小语言）
• Rust: Beware of Escape Sequences\n
• Introducing Rustybot (part 3 of n)
• Delete Cargo Integration Tests

Rust Walkthroughs

• C++ to Rust - or how to render your mindset
• Generic impl blocks are kinda like macros…
• Make a Back-End Number Guessing Game with Rust
• Captures in closures and async blocks
• Testing a driver crate
• Using Rust for AWS Lambdas
• Always-On Benchmarking in Rust
• Building an OpenStreetMap app in Rust, Part IV
• Solving Advent of Code 2020 in under a second
• The Case for the Typestate Pattern - Introducing Algebraic Data Types
• [DE] weniger frust mit rust
• [video] learning rust: procedural macros
• [video] rust proxy server with warp and hyper

Miscellaneous

• Ferrocene Part 3: The Road to Rust in mission- and safety-critical
• How our AWS Rust team will contribute to Rust’s future successes
• Librsvg, Rust, and non-mainstream architectures
• Always-On Benchmarking In Rust
• [DE] weniger frust mit rust

Crate of the Week

这周的箱子是camino，具有 UTF-8 编码路径的库，模仿std::os::Path的 API。

谢谢piegames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。

本周没有参加的电话

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 402 个拉取请求在上周合并

• implement -Z hir-stats for nested foreign items
• suggest character encoding is incorrect when encountering random null bytes
• suggest returning tail expressions that match return type
• 改善建议：tuple struct pattern matching errors
• 改善错误信息：when found type is deref of expected
• AST: remove some unnecessary boxes
• apply lint restrictions from renamed lints
• remove storage markers if they won’t be used during code generation
• remove many RefCells from DocContext
• prevent computing Item attributes twice
• new mir-opt pass to simplify gotos with const values
• add an impl of Error on Arc<impl Error>
• make ptr::write const
• make char and u8 methods const
• char::to_ascii_lowercase小优化
• stabilize str_split_once
• specialize slice::fill with Copy type and u8/i8/bool
• futures: future::SelectAll::into_inner
• futures: futures_util::stream::SelectAll::push should use &self
• cargo: run rustdoc doctests relative to the workspace
• cargo: throw error if CARGO_TARGET_DIR is an empty string
• cargo: 添加 [env] section 的支持，in .cargo/config.toml
• cargo: make it more clear which module is being tested when running cargo test

Rust Compiler Performance Triage

安静的一周，一些退步和一些不错的改进。

分流由 @simulacrum。修订范围：301ad8..edeee

2 个退步，3 个改进，0 个混合

其中 0 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：

本周未批准任何 RFC。

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

• RFC - cargo templates
• rfc: make cargo install extensible

Tracking Issues & PRs

• [disposition: merge] 弃用 doc(include)
• [disposition: merge] Implement Extend and FromIterator for OsString
• [disposition: merge] Allow specifying alignment for functions
• [disposition: close] resolve: allow super in module in block to refer to block items

New RFCs

• A new prelude for the 2021 edition

Quote of the Week

这是 C/C ++ 和 Rust 不同态度的一个很好的例子：在 C / C ++中，只要有人可以正确使用它，它是正确的；而在 Rust 中，当有人无法不正确地使用它时，它是正确的。

– /u/Janohard on /r/rust

Thanks to Vlad Frolov 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