Book Image

Go Design Patterns

By : Mario Castro Contreras
Book Image

Go Design Patterns

By: Mario Castro Contreras

Overview of this book

Go is a multi-paradigm programming language that has built-in facilities to create concurrent applications. Design patterns allow developers to efficiently address common problems faced during developing applications. Go Design Patterns will provide readers with a reference point to software design patterns and CSP concurrency design patterns to help them build applications in a more idiomatic, robust, and convenient way in Go. The book starts with a brief introduction to Go programming essentials and quickly moves on to explain the idea behind the creation of design patterns and how they appeared in the 90’s as a common "language" between developers to solve common tasks in object-oriented programming languages. You will then learn how to apply the 23 Gang of Four (GoF) design patterns in Go and also learn about CSP concurrency patterns, the "killer feature" in Go that has helped Google develop software to maintain thousands of servers. With all of this the book will enable you to understand and apply design patterns in an idiomatic way that will produce concise, readable, and maintainable software.
Table of Contents (17 chapters)
Go Design Patterns
About the Author
About the Reviewer
Customer Feedback

Interpreter design pattern

Now we are going to dig into a quite complex pattern. The Interpreter pattern is, in fact, widely used to solve business cases where it's useful to have a language to perform common operations. Let's see what we mean by language.


The most famous interpreter we can talk about is probably SQL. It's defined as a special-purpose programming language for managing data held in relational databases. SQL is quite complex and big but, all in all, is a set of words and operators that allow us to perform operations such as insert, select, or delete.

Another typical example is musical notation. It's a language itself and the interpreter is the musician who knows the connection between a note and its representation on the instrument they are playing.

In computer science, it can be useful to design a small language for a variety of reasons: repetitive tasks, higher-level languages for non-developers, or Interface Definition Languages (IDL) such as Protocol buffers or...