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)

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The current encode_something and decode_something functions are designed to be as simple to use as possible. However, they waste some performance by allocating Vec<u8> even though we could pipe the data directly into a writer. When writing a library, it would be nice to give the user both possibilities by adding methods in this way:

use std::io::Write;
fn encode_file_into(file: &mut Read, target: &mut Write) -> io::Result<()> {
// Files have a built-in encoder
let mut encoded = file.zlib_encode(Compression::Best);
io::copy(&mut encoded, target)?;

The user could call them like this:

// Compress it
encode_file_into(&mut original_reader, &mut encoded_writer)
.expect("Failed to encode file");