sdiehl/write-you-a-haskell

Building a modern functional compiler from first principles.

Stephen Diehl

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Chapters

• Chapter 1: Introduction
• Chapter 2: Parsing (Code)
• Chapter 3: Lambda Calculus (Code)
• Chapter 4: Simply Typed Lambda Calculus (Code)
• Chapter 5: Evaluation (Code)
• Chapter 6: Hindley-Milner Inference (Code)
• Chapter 7: Design of Fun (Code)
• Chapter 8: Layout and the Extended Parser (Code)
• Chapter 9: The Renamer (Code)
• Chapter 10: Typed Core and Core Lint (Code)
• Chapter 11: Datatypes and Pattern Matching (Code)
• Chapter 12: Records (Code)
• Chapter 13: Kinds and Type Constructors (Code)
• Chapter 14: Type Classes (Code)
• Chapter 15: Monads, Do Notation and IO (Code)
• Chapter 16: Pattern-Match Compilation (Code)
• Chapter 17: The Prelude and Deriving (Code)
• Chapter 18: A-Normal Form and Join Points (Code)
• Chapter 19: Closure Conversion (Code)
• Chapter 20: Data Representation and the Runtime (Code)
• Chapter 21: LLVM Code Generation (Code)
• Chapter 22: JIT and the REPL (Code)
• Chapter 23: Optimization (Code)
• Chapter 24: A Precise Garbage Collector (Code)
• Chapter 25: Future Work

Building

To build the chapters and the book, install Rust, just, Boehm GC and LLVM 22. The pinned book tools are installed locally by just bootstrap.

$ just bootstrap
$ just build
$ just book

To generate the pdf:

$ just pdf

Contributing

Any and all contributions are always welcome. As always, I rely on the perpetual kindness and goodwill of other compiler nerds (like you!) to help correct grammar, clarify, and fix errors.

• Contributing

License

This written work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. You may reproduce and edit this work with attribution.

The included source is released under the terms of the MIT License.