Everything you need to know about Macros.
About the Book
This book explores everything you need to know about Macros and how to write them.
Examples are mainly written in Elixir (http://elixir-lang.org/) but there is also smatterings of Clojure and other languages that do interesting things with Macros.
The Macro concepts explored are useful to to all implementations of Macros.
Table of Contents
- The Sharp knife
- What are Macros?
- Compile time lazy evaluation
- Macros vs Metaprogramming
- Building Functions
- Unquote Splicing
- Macro Escaping
- Eval quoted
- Hygiene & Macros
- Unquoting outside of macros
- Calling macros with runtime arguments
- Breaking syntax
- Manually parsing quoted code
- Unquoting multiple times
Macro Development Style
- Minimize Footprint
- Looking inside the Macro
- Lead by an Example
- Comparing Abstract Syntax Trees
- Meaningful stacktraces
Types of Macros
- Anonymous Macros
- Anaphoric Macros
- Reader Macros
- Appendix 1: Elixir’s AST
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