Book Image

Rust Quick Start Guide

By : Daniel Arbuckle
Book Image

Rust Quick Start Guide

By: Daniel Arbuckle

Overview of this book

Rust is an emerging programming language applicable to areas such as embedded programming, network programming, system programming, and web development. This book will take you from the basics of Rust to a point where your code compiles and does what you intend it to do! This book starts with an introduction to Rust and how to get set for programming, including the rustup and cargo tools for managing a Rust installation and development work?ow. Then you'll learn about the fundamentals of structuring a Rust program, such as functions, mutability, data structures, implementing behavior for types, and many more. You will also learn about concepts that Rust handles differently from most other languages. After understanding the Basics of Rust programming, you will learn about the core ideas, such as variable ownership, scope, lifetime, and borrowing. After these key ideas, you will explore making decisions in Rust based on data types by learning about match and if let expressions. After that, you'll work with different data types in Rust, and learn about memory management and smart pointers.
Table of Contents (10 chapters)

One Data Type Representing Multiple Kinds of Data

Sometimes, a data value might need to be one of multiple different data types. Rust has three ways of addressing that situation without breaking strict type safety: enumerations, trait objects, and Any. Each approach has strengths and weaknesses, so we'll examine them all and talk about when each is appropriate.

In this chapter, we're going to learn about the following:

  • What an enumeration is
  • How to create an enumeration type
  • How to create enumeration values
  • How to use the information stored in an enumeration value
  • What a trait and a trait object are
  • How to create a trait
  • How to create a trait object
  • How to use a trait object
  • What Any is
  • How to use Any
  • What enumerations are good for, what trait objects are good for, and what Any is good for