Book Image

Hands-On Functional Programming in Rust

By : Andrew Johnson
Book Image

Hands-On Functional Programming in Rust

By: Andrew Johnson

Overview of this book

Functional programming allows developers to divide programs into smaller, reusable components that ease the creation, testing, and maintenance of software as a whole. Combined with the power of Rust, you can develop robust and scalable applications that fulfill modern day software requirements. This book will help you discover all the Rust features that can be used to build software in a functional way. We begin with a brief comparison of the functional and object-oriented approach to different problems and patterns. We then quickly look at the patterns of control flow, data the abstractions of these unique to functional programming. The next part covers how to create functional apps in Rust; mutability and ownership, which are exclusive to Rust, are also discussed. Pure functions are examined next and you'll master closures, their various types, and currying. We also look at implementing concurrency through functional design principles and metaprogramming using macros. Finally, we look at best practices for debugging and optimization. By the end of the book, you will be familiar with the functional approach of programming and will be able to use these techniques on a daily basis.
Table of Contents (12 chapters)

Implementing Concurrency

Concurrency is the act of doing two things at the same time. On a single-core processor, this means multitasking. When multitasking, an operating system will switch between running processes to give each of them a share of time to use the processor. On a multi-core processor, concurrent processes can run simultaneously.

In this chapter, we will look at different models of concurrency. Some of these tools are relevant, others are used more for educational purposes. Here, we recommend and explain the thread model of concurrency. Further, we will explain how functional design patterns can make it easier to develop programs that use concurrency effectively.

Learning outcomes will include the following:

  • Recognizing and applying subprocess concurrency appropriately
  • Understanding the nix fork concurrency model and its benefits
  • Recognizing and applying thread...