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Metaprogramming in Elixir

Master the concept of Elixir metaprogramming and start writing your own robust libraries. Learn how to get more done by writing less code!

Intermediate

51 Lessons

9h 10min

Certificate of Completion

Master the concept of Elixir metaprogramming and start writing your own robust libraries. Learn how to get more done by writing less code!

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This course includes

1 Project

57 Playgrounds

6 Quizzes

Course Overview

What You'll Learn

Course Content

Course Overview

Get introduced to the concept of metaprogramming. Learn how to level up your programming skills by discovering the full potential of the macro system in Elixir. Understand the ins and outs of metaprogramming at a fundamental level and write incredible libraries by doing more with less code.

What You'll Learn

Understand the basic concepts of metaprogramming in Elixir

Learn about macros and the abstract syntax tree

Create an HTML Domain-Specific Language

Learn to properly test meta-programming based code

Understand the basic concepts of metaprogramming in Elixir

Course Content

Introduction

2 Lessons

Sharpen your skills in Elixir metaprogramming, focusing on AST, macros, and custom feature development.

Getting Started

Course Overview

The Language of Macros

8 Lessons

Discover the logic behind Elixir macros, AST manipulation, and code injection techniques.

Introduction to Metaprogramming

Tying AST and Macros Together

The Abstract Syntax Tree

Macros: The Building Blocks

Code Injection and the Caller’s Context

Try It Out

Try It Out: Solution

Test Your Knowledge!

Extending Elixir with Metaprogramming

9 Lessons

Break apart key concepts of Elixir's macros, testing, module extension, and code generation.

Custom Language Constructs

Smarter Testing with Macros

Leveraging the Virtual Machine’s Pattern Matching Engine

Extending Modules

Using Module Attributes for Code Generation

Advanced Compile-Time Code Generation

10 Lessons

Apply your skills to advanced code generation, MIME-type conversion, and internationalization in Elixir.

Generating Functions from External data

MIME-Type Conversion

Building an Internationalization Library

Finalize Building Our Internationalization Library

The Complete Translator Module

Introduction to Macro.escape

Code Generation from Remote APIs

Try It Out

Try It Out: Solution

Test Your Knowledge!

Code Generation from Git API

Project

How to Test Macros

6 Lessons

Map out the steps for setting up, focusing, integrating, unit testing, and simplifying macro tests.

Setting Up Your Test Suite

Deciding What to Test

Integration Testing

Unit Tests

Test Simple and Test Fast

Test Your Knowledge!

Create an HTML Domain-Specific Language

10 Lessons

Tackle building an HTML DSL in Elixir using macros for dynamic and efficient HTML generation.

Getting Domain Specific

Defining Minimum Viable API

Keeping State With Elixir Agents

Supporting the Entire HTML Spec with Macros

Enhancing API with HTML Attribute Support

Generating Less Code by Walking the AST

To DSL or Not to DSL?

Try It Out

Try It Out: Solution

Test Your Knowledge!

With Great Power Comes Great Responsibility (and Fun!)

6 Lessons

Bend the rules for powerful applications, avoiding pitfalls, and build Elixir's future.

When and Where to Use Macros

Avoiding Common Pitfalls

Kernel.SpecialForms: Know the Environment and Limitations

Bending the Rules

Build the Future!

Test Your Knowledge!

Course Author

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