January 2022
Intermediate to advanced
680 pages
11h 35m
Japanese
Content preview from プログラミングRust 第2版Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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8章クレートとモジュール
これもRustのテーマの1つだ：システムプログラマにだって何かいいものがあっていいはずだ。
−Robert O'Callahan「Random Thoughts on Rust: crates.io and IDEs」†1
シダ植物の成長を、細胞レベルでシミュレートするプログラムを書くことを考えてみよう。プログラムは、ちょうどシダの胞子のように、最初はとても単純ですべてのコードを収めた1つのファイルからスタートするだろう。プログラムが成長するにつれ、内部に構造が生まれる。異なる目的を持つ複数の部分に分化し、複数のファイルに分かれることになる。さらにはディレクトリツリーを構成するようになる。時が経つと、ソフトウェアエコシステム全体の重要な部分になるかもしれない。ある程度の数のデータ構造を持つプログラムや100行を超えるようなプログラムであれば、何らかの構造化が必要だ。
本章はプログラムを構造化するためのRustの機能、クレートとモジュールについて説明する。また、Rustのクレートの構造化と配布に関するさまざまなトピックについても、シダ植物シミュレータを例にとって説明する。本章では、ドキュメントの書き方、テストする方法、不要なコンパイラ警告を抑制する方法、Cargoでプログラムの依存関係とバージョンを管理する方法、オープンソースライブラリをRustの公式クレートレポジトリであるcrates.ioで公開する方法、Rustの言語エディションによる進化などを説明する。
8.1 クレート
Rustプログラムは ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.