Gain insights into metaprogramming in Elixir. Delve into macros and discover how to elevate your coding skills, creating powerful libraries with concise, efficient code.

_Metaprogramming Elixir by The Pragmatic Programmer_468 x 60 copy.png

elixir.tar.gz

elixir

elixir-testing

elixir-copy

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.

Metaprogramming in Elixir

The code is expanded followed by compiling the rest of the program.

The code is expanded followed by the compiler checking for more macros.


What happens when the compiler encounters a macro in the code AST?

What happens when the compiler encounters a macro in the code AST?

Which statement best explains how macros work in Elixir?

Which statement best explains how macros work in Elixir?

What does AST stand for?

```
{:div, [context: Elixir, import: Kernel], [8, 16]}

```
{[context: Elixir, import: Kernel], [8,16], :div}

```
{:div, [context: Elixir, import: Kernel], [16,8]}

What is the expected output of the following expression:
```
iex> quote do: div(16, 8)
```

What is the expected output of the following expression:
<pre><code>iex&gt; quote do: div(16, 8)
</code></pre>

```
{:*, [context: Elixir, import: Kernel],
[{:+, [context: Elixir, import: Kernel], [3, 2]}, 7]}

```
{:+, [context: Elixir, import: Kernel],
[{:*, [context: Elixir, import: Kernel], [3, 2]}, 7]}

```
{:+, [context: Elixir, import: Kernel],
[{:*, [context: Elixir, import: Kernel], [7, 2]}, 3]}

```
{:+, [context: Elixir, import: Kernel],
[{:+, [context: Elixir, import: Kernel], [3, 2]}, 7]}

What's the expected output of the following expression?
```
iex> quote do: 3 * 2 + 7
```

What’s the expected output of the following expression?
<pre><code>iex&gt; quote do: 3 * 2 + 7
</code></pre>

Which keyword is required for the transformation from high-level source to low-level AST in Elixir?

Which keyword is required for the transformation from high-level source to low-level AST in Elixir?

Introduction

The Language of Macros

Extending Elixir with Metaprogramming

Advanced Compile-Time Code Generation

Code Generation from Git API

How to Test Macros

Create an HTML Domain-Specific Language

With Great Power Comes Great Responsibility (and Fun!)

Test Your Knowledge!