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Metaprogramming Elixir

by Chris McCord

TOC | Early praise for Metaprogramming Elixir 👉

Acknowledgements

Introduction

Metaprogramming — An Essential Feature

How to Read This Book

Running the Code Exercises

Online Resources

1. The Language of Macros

The World Is Your Playground

Macro Rules

The Abstract Syntax Tree — Demystified

Macros: The Building Blocks of Elixir

Code Injection and the Caller’s Context

Further Exploration

2. Extending Elixir with Metaprogramming

Custom Language Constructs

Smarter Testing with Macros

Extending Modules

Using Module Attributes for Code Generation

Compile-Time Hooks

Further Exploration

3. Advanced Compile-Time Code Generation

Generating Functions from External Data

MIME-Type Conversion in Ten Lines of Code

Building an Internationalization Library

Code Generation from Remote APIs

Further Exploration

4. How to Test Macros

Setting Up Your Test Suite

Deciding What to Test

Integration Testing

Unit Tests

Test Simple and Test Fast

Further Exploration

5. Creating an HTML Domain-Specific Language

Getting Domain Specific

Start by Defining the Minimum Viable API

Support the Entire HTML Spec with Macros

Enhance Your API with HTML Attribute Support

Generate Less Code by Walking the AST

To DSL or Not to DSL?

Further Exploration

6. With Great Power Comes Great Responsibility (and Fun!)

When and Where to Use Macros

Avoiding Common Pitfalls

Bending the Rules

Build the Future

Copyright © 2015, The Pragmatic Bookshelf.

TOC | Early praise for Metaprogramming Elixir 👉

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