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)

Summary

In this chapter, we outlined the steps to address changes to the project scope and new specifications. We focused on how to write robust code that will encourage reuse in further additional projects or refinements.

Using a wide variety of data structures helps to organize our project and data. The code should be self-documenting whenever possible. Additionally, typesafe code can enforce some assumptions about code to block incorrect input and inappropriate usage. Through the use of data classes, we also learned how to extend existing data structures to support new uses. We also used data classes as an interface to defer assumptions about project elements that were uncertain.

In the next chapter, we will learn about parameterization and generics. We will perform an in-depth code review along with case analysis.