Rust周报 377(译)

• this-week-in-rust
• 日期：2021-02-10
• 原文：377 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

• [Foundation] hello world!
• [Inside] 1.50.0 pre-release testing

Newsletters

• This Month in Rust GameDev #18 - January 2021
• This Month in Rust OSDev (January 2021)

Project/Tooling Updates

• rust-analyzer Changelog #63
• Launching wasm.rs: a collection of crates, a community
• A Memory Safe TLS Module for the Apache HTTP Server

Observations/Thoughts

• 对 Tokio Tasks 和 Goroutines 进行基准测试
• A Better Rust 分析器
• An unsafe tour of Rust’s Send and Sync
• Improving texture atlas allocation（纹理图分配） in WebRender

Rust Walkthroughs

• Async Rust: Futures, Tasks, Wakers; Oh My!
• Rust for Haskell Programmers!
• Rust CLI Game of Life tutorial - Part 1
• Where everything went wrong…
• Rust for Clojurists
• [ES] el formato ron: rusty object notation
• [video] 1password developer fireside chat: introduction to rust macros
• [video] dynamic vs static dispatch in rust

Miscellaneous

• Congratulations, Rustaceans, on the creation of the Rust Foundation!
• Microsoft joins Rust Foundation
• Google joins the Rust Foundation
• Mozilla Welcomes the Rust Foundation
• Trusted Programming - Our Rust Mission at Huawei
• YSK: VSCode’s most recent update fixed a quirk in Rust workflows
• curl supports rustls
• Architecting Artichoke Ruby: A Modular Ruby implementation written in Rust
• [video] interview with ashley williams, rust foundation interim executive director (part 1)

Crate of the Week

这周的箱子是threadIO，让后台线程中磁盘 IO，简单且优雅 的箱子。

谢谢David Andersen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。

紫红色有几个可用的问题：

• [netstack3] ARP: Add tests for ARP on a broadcast medium
• [netstack3] Migrate all transport protocols to trait associated types
• [netstack3] Split IpProto into Ipv4Proto and Ipv6NextHeader
• [net-types] Add common prefix length calculation for IP addresses
• [netstack3] Make sure ICMP messages are not sent in response to non-initial fragment packets
• [internet-checksum] Clarify documentation around odd byte lengths
• [netstack3] IP fragment reassembly vulnerable to FragmentSmack

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 384 个拉取请求在上周合并

• add AArch64 big-endian and ILP32 targets
• improve handling of spans around macro result parse errors
• identify unreachable subpatterns more reliably
• fix issues：move closures and mutability
• const_evaluatable: 考虑让 sub-expressions to be evaluatable
• introduce future-compatibility warning for forbidden lint groups
• Box the biggest ast::ItemKind variants
• 改善错误信息：disallowed ptr-to-int casts in const eval
• typeck: emit structured suggestions for tuple struct syntax
• faster few span methods
• fix bug with assert!() - 调用错误版本的panic!()
• make Allocator object-safe
• add Frames Iterator for Backtrace
• add Vec::extend_from_within method under vec_extend_from_within feature gate
• BTreeMap: make Ord bound explicit, compile-test its absence
• implement TrustedLen for Fuse<I: TrustedLen>
• rename Iterator::fold_first to reduce and stabilize it
• 稳定化：the Wake trait
• 稳定化：peekable_next_if
• 稳定化：poison API of Once, rename poisoned()
• 稳定化：将 integer methods 保留为 const fn
• futures-rs: avoid once_cell in static wakers
• hashbrown: implement From<HashMap<T, ()>> for HashSet<T>
• cargo: fix panic with doc collision orphan
• cargo: 修复 env/cfg set for cargo test and cargo run
• 让 rustdoc 遵循 --error-format short in doctests
• clippy: 修复 let_underscore_drop false positive
• clippy: 修复 let_and_return false positive
• clippy: 不触发 exhaustive_structs for structs with private fields
• clippy: add new lint missing_panics_doc
• compiletest: 为每个 bitwidth，添加触发 compiler stderr 的 选项

Rust Compiler Performance Triage

本周没有分类报告

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：

• Rust 2021 Roadmap

Final Comment Period

每周the team宣布即将做出决定的 RFC 和主要 PR 的“最终评论期”。立即发表您的意见。

RFCs

• adds async stream rfc
• RFC: add the Freeze trait to libcore/libstd
• Generic Pointer to Field

Tracking Issues & PRs

• [disposition: merge] 允许 前缀 | anywhere we allow or-patterns
• [disposition: merge] impl PartialEq<Punct> for char; symmetry for #78636
• [disposition: merge] add an impl of Error on Arc<impl Error>.
• [disposition: merge] add NotSupported to std::io::ErrorKind
• [disposition: merge] 跟踪问题： Option::expect_none(msg) and unwrap_none()

New RFCs

• Add named path bases to cargo

Quote of the Week

Rust 的主题不是系统编程，速度或内存安全性 —— 而是它将运行时问题转移到编译时上。其他一切都是偶然的。这是作为一种语言的宝贵品质，也是 Rust 出色的一面。

– /u/OS6aDohpegavod4 on /r/rust

Thanks to Chris 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