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)

Reorganizing the project

Now that we have some ideas of good project architecture, let's plan the project's reorganization. Let's list the possible workshop organization methods:

  • By type
  • By purpose
  • By layer
  • By convenience

The by type organization should be used for workshop nuts and bolts type components. Nuts and bolts are highly uniform components that have a different diameter, length, grade, and so on. We have a few good matches here, so let's list objects and interfaces that could be grouped this way:

  • Motors
  • Buildings
  • Elevator controllers/drivers

The by purpose organization should be used for miscellaneous tools that have a common purpose. We have some good candidates for this style of organization, too:

  • Transport planning (static/dynamic)
  • The physical interface to an elevator

The by layer organization should be used for distinct architectural components...