【Rust日报】2020-06-08

mlua v0.4 发布并支持Lua 5.4

mlua v0.4 released with Lua 5.4 support
https://github.com/khvzak/mlua

mlua v0.4 发布并支持Lua 5.4。

v0.4 changelog

MiniCouchDB: implementing a subset of CouchDB in Rust

MiniCouchDB: implementing a subset of CouchDB in Rust
https://www.garrensmith.com/blogs/mini-couch-hack-week https://github.com/garrensmith/couch_hack_week

受 mini-redis 启发，搞了一个 mini-CouchDB in Rust .

Benchrs: Apache Benchmark(ab) clone in rust

Benchrs: Apache Benchmark(ab) clone in rust https://crates.io/crates/benchrs

Apache Benchmark style http bench tool written in async rust.


   
   
   Benchrs 0.1.7
Arkaitz Jimenez <arkaitzj@gmail.com>
Does http benchmarks

USAGE:
    benchrs [FLAGS] [OPTIONS] <url>

FLAGS:
    -h, --help       Prints help information
    -k               Enables keep alive
    -V, --version    Prints version information
    -v               Increases verbosity

OPTIONS:
    -c <concurrency>           Sets the concurrency level
    -H <header>...             Sets a custom header
    -m <method>                Request method: default GET
    -p <postfile>              File attach as request body
    -n <request number>        Sets the number of requests

ARGS:
<url>    The url to hit

Rust/WinRT快速入门

Getting started with Rust/WinRT
https://kennykerr.ca/2020/06/05/getting-started-with-rust-winrt/

加拿大小伙子Kenny Kerr写的Rust/WinRT编程快速入门。

Rust/WinRT编程快速入门已经非常简单，这得益于程序员喜欢的Rust语言编程工具链提供了大量的便利。如果你想不需要额外的帮助直接入门，下面是一些有用的链接

GitHub: https://github.com/microsoft/winrt-rs
Docs.rs: https://docs.rs/winrt/
Crates.io: https://crates.io/crates/winrt

下面会给一些个人的心得和小技巧：

安装先决条件和工具：

Visual Studio 2019 – be sure to install the C++ tools as this is required by the Rust compiler (only the linker is required).
Visual Studio Code – this is the default IDE used for Rust.
Python – be sure to install the x64 version as this is required for debugging support.
Git – Rust has deep support for Git.
Rust – this installs rustup which is a tool for installing Rust toolchains and common Rust related tooling.

打开VS Code然后键入 Ctrl+Shift+X 打开扩展页安装下面的extensions:

rust-analyzer – there are others, but this is the only Rust extension that I’ve tried that actually works reliably most of the time.
CodeLLDB – you can also use the Microsoft C++ extension for debugging, but this one does a better job of integrating with the IDE.
C/C++ – the Microsoft C++ extension doesn’t integrate as well with the IDE, but provides superior debugging information, so you may want to have that on hand for an emergency.

提示下载并安装Rust language server，确认安装，然后重新启动IDE。然后我们开始用新的cargo包创建例子：


   
   
   C:\>cargo new sample
     Created binary (application) `sample` package

C:\>cd sample
C:\sample>code .

新创建的项目目录下修改Cargo.toml配置文件，并添加WinRT的依赖库包：


   
   
   [dependencies]
winrt = "0.7.0"

确认所有的库是最新的，然后开始编译项目：


   
   
   C:\sample>cargo build
Updating crates.io index
Compiling proc-macro2 v1.0.18
Compiling unicode-xid v0.2.0
   ...
Compiling winrt_gen_macros v0.7.0
Compiling winrt_gen v0.7.0
Compiling winrt_macros v0.7.0
Compiling winrt v0.7.0
Compiling sample v0.1.0 (C:\sample)
Finished dev [unoptimized + debuginfo] target(s) in 19.65s

C:\sample>cargo run
Finished dev [unoptimized + debuginfo] target(s) in 0.06s
Running `target\debug\sample.exe`
Hello, world!

在项目文件夹里找到写hello world的源文件main.rs，我们用winrt::import macro来生成Rust bindings for WinRT的APIs：


   
   
   winrt::import!(
    dependencies
        os
    types
        windows::data::xml::dom::*
);

其实你在main.rs里面任何位置放置上面的代码都可以，这个导入的宏分成两个部分：一类是你的项目中需要标识WinRT组件，另一类是特别需要相应的类型子集。这里用了 os 表示需要运行的操作系统，也可以指定特定版本的Windows SDK。然后指定了官方文档中的一些类型 windows::data::xml::dom 下面还有用了 XmlDocument ，具体的细节可以参考官方文档 :


   
   
   fn main() -> winrt::Result<()> {
use windows::data::xml::dom::*;

let doc = XmlDocument::new()?;
    doc.load_xml("<html>hello world</html>")?;

let root = doc.document_element()?;
assert!(root.node_name()? == "html");
assert!(root.inner_text()? == "hello world");

Ok(())
}

编译运行的结果：


   
   
   C:\sample>cargo run
Compiling sample v0.1.0 (C:\sample)
Finished dev [unoptimized + debuginfo] target(s) in 8.71s
Running `target\debug\sample.exe`

这样，import宏导进来的库就可以开始调用指定的 Windows API 了。

rust语言写斗兽棋游戏

Animal Fight Chess Game written in rust.
https://github.com/netcan/AnimalChess

Animal Fight Chess Game（斗兽棋） written in rust. Rust语言写斗兽棋游戏

游戏规则和玩法：

http://ancientchess.com/page/play-doushouqi.htm
https://en.wikipedia.org/wiki/Jungle_(board_game)

编译和运行：


   
   
   git clone https://github.com/netcan/AnimalChess.git
cd AnimalChess
cargo run --release

From 日报小组 BobQ

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