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)

Useful procedural macro crates

As procedural macros can be distributed as crates, a lot of emerging helpful macro crates are available, which can be found at Using them can greatly reduce the boilerplate you need to write for generating Rust code. Some of them are as follows:

  • derive-new: A derive macro provides a default all-fields constructor for structs and is quite customizable.
  • derive-more: A derive macro that circumvents the limitation where we wrap a type for which we already have a lot of traits auto-implemented, but lose the ability to create our own type wrapping for it. This crate helps us provide the same set of traits, even on these wrapper types.
  • lazy_static: This crate provides a function-like procedural macro called lazy_static!, where you can declare static values that require dynamically initialized types. For example, you can declare a configuration...