Book Image

Rust Programming Cookbook

By : Claus Matzinger
Book Image

Rust Programming Cookbook

By: Claus Matzinger

Overview of this book

Rust 2018, Rust's first major milestone since version 1.0, brings more advancement in the Rust language. The Rust Programming Cookbook is a practical guide to help you overcome challenges when writing Rust code. This Rust book covers recipes for configuring Rust for different environments and architectural designs, and provides solutions to practical problems. It will also take you through Rust's core concepts, enabling you to create efficient, high-performance applications that use features such as zero-cost abstractions and improved memory management. As you progress, you'll delve into more advanced topics, including channels and actors, for building scalable, production-grade applications, and even get to grips with error handling, macros, and modularization to write maintainable code. You will then learn how to overcome common roadblocks when using Rust for systems programming, IoT, web development, and network programming. Finally, you'll discover what Rust 2018 has to offer for embedded programmers. By the end of the book, you'll have learned how to build fast and safe applications and services using Rust.
Table of Contents (12 chapters)

Handling Errors and Other Results

Handling errors is always an interesting challenge in every programming language. There are many styles available: returning numeric values, exceptions (software interrupts), result and option types, and so on. Each way requires different architectures and has implications for performance, readability, and maintainability. Rust's approach is—just like many functional programming languages—based on integrating failure as part of the regular workflow. This means that whatever the return value, an error is not a special case but integrated into the handling. Option and Result are the central types that allow for returning results as well as errors. panic! is an additional macro to halt the thread immediately in case it cannot/should not continue.

In this chapter, we'll cover some basic recipes and architectures to use Rust...