edition-2018.rst

Rust Edition 2018 - Productivity

目錄

• 3.7 - Data Types
  • 3.7.1 - struct 初始化簡便改進
• 3.15 - Platforms and target support
  • 3.15.5 - 用 musl 產生完全靜態的執行檔

3.7 - Data Types

3.7.1 - struct 初始化簡便改進

如果變數名稱跟 struct 欄位一樣的話可以簡化：

struct Point {
    x: i32,
    y: i32,
}

let x = 5;
let y = 6;

// old
let p = Point {
    x: x,
    y: y,
};

// new
let p = Point {
    x,
    y,
};

3.15 - Platforms and target support

3.15.5 - 用 musl 產生完全靜態的執行檔

rustup target add x86_64-unknown-linux-musl
cargo build --target x86_64-unknown-linux-musl