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Rust Projects - Write an Interpreter
Learn Rust while you explore the fascinating art of writing a programming language
This book is 40% completeLast updated on 2026-11-05
Explore the power of Rust with "Rust Projects: Write an Interpreter". This hands-on guide takes you through building an implementation of the programming language Lox, invented by Robert Nystrom.
The book will follow Robert Nystrom's book and the CodeCrafters challenge "Build your own Interpreter", and at the same time will help you to understand strengths and weaknesses of Rust. Whether you're new to Rust or looking to deepen your understanding, this project-based journey offers practical, real-world insights into modern coding.
The book contains 40% discount code for CodeCrafters.io!
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About
About the Book
This book is a hands-on guide to writing a Rust implementation of Lox, the language invented by Robert Nystrom for his book "Crafting Interpreters". The book follows the CodeCrafters challenge of the same name. Readers will start by implementing a simple scanner, moving then to more advanced concepts like parsing expressions and executing statements.
The book currently covers the base challenge and the following extensions: "Parsing Expressions", "Evaluating Expressions", "Statements & State".
This work is also available in HTML format.
Author
About the Author
Leonardo Giordani
My name is Leonardo Giordani, I was born in 1977 with Star Wars, bash, Apple ][, BSD, Dire Straits, The Silmarillion. I'm interested in operating systems and computer languages, photography, fantasy and science fiction, video and board games, guitar playing, and (too) many other things.
I studied and used several programming languages, from the Z80 and x86 Assembly to Python and Scala. I love mathematics and cryptography. I'm mainly interested in open source software, and I like both the theoretical and practical aspects of computer science.
I've been in the industry for 25 years, as C/Python programmer and DevOps for a satellite imagery company, infrastructure and backend engineer in the film industry, and Head of Engineering in a biotech. I've also been a coding bootcamp instructor and recently I run several courses on databases, coding, and AI.
In 2013 I started publishing some technical thoughts on my blog, The Digital Cat. In 2018 I published my first book with Leanpub, “Clean Architectures in Python”, which has been already downloaded more than 25,000 times. Recently, I published two books on practical Rust projects following the amazing work done by CodeCrafters.
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