Book Image

Rust Standard Library Cookbook

By : Jan Hohenheim, Daniel Durante
Book Image

Rust Standard Library Cookbook

By: Jan Hohenheim, Daniel Durante

Overview of this book

Mozilla’s Rust is gaining much attention with amazing features and a powerful library. This book will take you through varied recipes to teach you how to leverage the Standard library to implement efficient solutions. The book begins with a brief look at the basic modules of the Standard library and collections. From here, the recipes will cover packages that support file/directory handling and interaction through parsing. You will learn about packages related to advanced data structures, error handling, and networking. You will also learn to work with futures and experimental nightly features. The book also covers the most relevant external crates in Rust. By the end of the book, you will be proficient at using the Rust Standard library.
Table of Contents (12 chapters)

How it works...

If a struct provides a method called new that returns Self, the user of the struct will not configure or depend upon the members of the struct, as they are considered to be in an internal hidden state.

In other words, if you see a struct that has a new function, always use it to create the structure.
This has the nice effect of enabling you to change as many members of the struct as you want without the user noticing anything, as they are not supposed to look at them anyway.

The other reason to use this pattern is to guide the user to the correct way of instantiating a struct. If one has nothing but a big list of members that have to be filled with values, one might feel a bit lost. If one, however, has a method with only a few self-documenting parameters, it feels way more inviting.