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)

Staying productive during downtime

There will be some time before the client makes a final decision regarding negotiation and potential acceptance of your project proposal. During that time, your management has encouraged you to take this time to review your work and make preparations for integrating the elevator controller into a real elevator.

You do not know much about direct elevator control interfaces, and the client specifically mentioned that there may be multiple subcontractors designing each of the different elevators. Making assumptions at this point may lead to wasted effort so, instead, you decide to reconsider your code and look for opportunities to remove any assumptions.

Parameterization and use of trait interfaces should help achieve this goal of abstraction. During this downtime, you decide to have the team learn about parameterization and consider how it can...