Crafting Interpreters: Part 2 Representing Code

📰 Medium · Programming

Learn to represent code using abstract syntax trees in Go by following along with the Crafting Interpreters book, applying the concepts to build an interpreter from scratch

intermediate Published 19 Apr 2026
Action Steps
  1. Define the grammar for the interpreter using a context-free grammar
  2. Implement a lexer to tokenize the input code
  3. Build an abstract syntax tree (AST) from the tokens
  4. Write a parser to construct the AST from the tokens
  5. Use the AST to execute the code or perform other operations
Who Needs to Know This

Software engineers and developers who want to learn about interpreter design and implementation in Go will benefit from this tutorial, as it provides a hands-on approach to building an interpreter from the ground up

Key Insight

💡 Abstract syntax trees (ASTs) are a fundamental data structure in interpreter design, allowing for efficient and flexible representation of code

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Build an interpreter in Go from scratch! Learn how to represent code using abstract syntax trees and follow along with the Crafting Interpreters book #go #interpreter #ast
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