Book Image

Mastering Rust - Second Edition

By : Rahul Sharma, Vesa Kaihlavirta
Book Image

Mastering Rust - Second Edition

By: Rahul Sharma, Vesa Kaihlavirta

Overview of this book

Rust is an empowering language that provides a rare combination of safety, speed, and zero-cost abstractions. Mastering Rust – Second Edition is filled with clear and simple explanations of the language features along with real-world examples, showing you how you can build robust, scalable, and reliable programs. This second edition of the book improves upon the previous one and touches on all aspects that make Rust a great language. We have included the features from latest Rust 2018 edition such as the new module system, the smarter compiler, helpful error messages, and the stable procedural macros. You’ll learn how Rust can be used for systems programming, network programming, and even on the web. You’ll also learn techniques such as writing memory-safe code, building idiomatic Rust libraries, writing efficient asynchronous networking code, and advanced macros. The book contains a mix of theory and hands-on tasks so you acquire the skills as well as the knowledge, and it also provides exercises to hammer the concepts in. After reading this book, you will be able to implement Rust for your enterprise projects, write better tests and documentation, design for performance, and write idiomatic Rust code.
Table of Contents (19 chapters)

Design goals of WebAssembly

WebAssembly's design is the result of a joint collaboration between major browser vendors. Together, they aim to shape its design with the following goals in mind:

  • Be as safe and universal as JavaScript: The web platform is an unsafe environment and having untrusted code run is detrimental to the safety of users on the web.
  • Run as quickly as native code: Because the language is quite compact, WebAssembly can be loaded faster than JavaScript code and can be interpreted five times faster than JavaScript.
  • Provide consistent, predictable performance: Being statically typed, and with very minimal analysis happening at runtime, WebAssembly is able to provide consistent performance on the web, whereas JavaScript falls short because of its dynamic nature.
  • Allow code reuse between web and native: A lot of existing code bases in C/C++, Rust, and other languages...