Everything you need to know about the TypeScript Compiler API! Become an expert on TypeScript Code Generation, Abstract Syntax Trees (AST), and everything related to programmatic code manipulation!

This eBook was written for software developers who are interested in learning more about TypeScript and its powerful compiler APIs. The TypeScript Compiler API is a feature-rich API available for automating code-related tasks, such as reading code, writing code, and extending TypeScript’s built-in feature set.

If you want to learn how to:

Automate the generation of boilerplate code in your codebase.
Create custom linters to catch bugs and inconsistencies in your codebase faster.
Write more reliable code by eliminating a whole class of bugs.
Read and analyze code programatically to generate custom documentation or other formats of data.
Get a better understanding of the TypeScript internals.
Then this book is for you!

We will demystify the secrets of the TypeScript Abstract Syntax Tree and learn how to use it to our advantage! We will learn how to write linters, extend diagnostics, create custom logic for code validations at compile time, and most importantly – generate code automatically based on data and constraints.

Chapters

1. What is the Typescript Compiler API
A gentle introduction to everything the Typescript Compiler API provides

2. Overview of Abstract Syntax Trees
A brief overview of Abstract Syntax Trees (ASTs) and how to understand them

3. Transpiling Modules to Javascript
Understanding how to use the Compiler API to transpile TypeScript to JavaScript

4. Extracting data from the AST
Learn how to read and extract useful data from the TypeScript AST

5. Use cases for reading ASTs
Going over the most common use cases for reading and extracting AST data

6. Writing a TypeScript Linter
Learn how to write a custom TypeScript Linter from scratch!

7. Code Generation
Introduction to writing ASTs to accomplish automatic TypeScript code generation

8. Writing a TypeScript transformer
Learning how to rewrite the AST to create Babel-like transformers

9. Unit testing code generation
Strategies & tips for writing tests against code generation scripts

10. The Type Checker
Using the TypeScript Type Checker for more in-depth metadata

11. Leveraging A.I for code generation
Understanding how to leverage A.I LLM’s to accomplish tasks faster