Book Image

Professional Scala

By : Mads Hartmann, Ruslan Shevchenko
Book Image

Professional Scala

By: Mads Hartmann, Ruslan Shevchenko

Overview of this book

This book teaches you how to build and contribute to Scala programs, recognizing common patterns and techniques used with the language. You’ll learn how to write concise, functional code with Scala. After an introduction to core concepts, syntax, and writing example applications with scalac, you’ll learn about the Scala Collections API and how the language handles type safety via static types out-of-the-box. You’ll then learn about advanced functional programming patterns, and how you can write your own Domain Specific Languages (DSLs). By the end of the book, you’ll be equipped with the skills you need to successfully build smart, efficient applications in Scala that can be compiled to the JVM.
Table of Contents (12 chapters)

Chapter 8. Domain Specific Languages

In the previous chapter, we covered the core concepts of functional programming such as pure functions, immutability, and higher-order functions. We introduced some of the design patterns that are prevalent in large functional programs. Finally, we covered two popular functional programming libraries called Cats and Doobie and used them to write some interesting programs.

In this chapter, we will cover how Scala makes it possible to write powerful DSLs by providing a few interesting language features. We'll have a brief look at what DSLs are in general terms. We'll also cover a DSL that you'll very likely be using if you're going to work with Scala professionally. Finally, you will implement your own DSL.

This chapter demonstrates how Scala makes it possible to write powerful Domain Specific Languages (DSLs) by providing a few interesting language features.

By the end of this chapter, you will be able to:

  • Identify the use of Domain Specific Languages (DSLs...