Book Image

Clojure for Java Developers

Book Image

Clojure for Java Developers

Overview of this book

We have reached a point where machines are not getting much faster, software projects need to be delivered quickly, and high quality in software is more demanding as ever. We need to explore new ways of writing software that helps achieve those goals. Clojure offers a new possibility of writing high quality, multi-core software faster than ever, without having to leave your current platform. Clojure for Java developers aims at unleashing the true potential of the Clojure language to use it in your projects. The book begins with the installation and setup of the Clojure environment before moving on to explore the language in-depth. Get acquainted with its various features such as functional programming, concurrency, etc. with the help of example projects. Additionally, you will also, learn how the tooling works, and how it interacts with the Java environment. By the end of this book, you will have a firm grip on Clojure and its features, and use them effectively to write more robust programs.
Table of Contents (14 chapters)
Clojure for Java Developers
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

Chapter 7. Macros in Clojure

In this chapter, we will get to know one of Clojure's most complicated facilities: macros. We will learn what they are for, how to write them, and how to use them. It can be a little challenging, but there is good news too. You should be aware of some tools from your knowledge of the Java language that can help you understand macros better. We will progress little by little with comparisons to other JVM languages, and in the end, we will write some macros and understand that we have been using them for a while.

We will learn about the following topics:

  • Understanding Lisp's foundational ideas

  • Macros as code modification tools

  • Modifying code in Groovy

  • Writing your first macro

  • Debugging your first macro

  • Macros in the real world