When and Where to Use Macros

We’ve unlocked many of Elixir’s metaprogramming secrets. We went from the basics to writing our own language features. Along the way, we gained insight into Elixir’s internals and probably found a new appreciation for the language’s syntax and idioms. Without curbing the excitement, we’re going to review some tips and tricks for getting the most out of Elixir’s macro system and avoiding common pitfalls. Staying on the happy path of metaprogramming will let us write extensible code, which is easy to write and maintain.