Using the Representation as Code
Explore Elixir macros to understand how code is represented internally and manipulated through quoting and unquoting. Learn to inject code fragments back into programs, handle code evaluation safely, and implement conditional logic like a custom if macro using unquote and unquote_splicing.
We'll cover the following...
We'll cover the following...
Introduction
When we extract the internal representation of some code (either via a macro parameter or using quote), we stop Elixir from adding it automatically to the tuples of code it’s building during compilation. We’ve effectively created a free-standing island of code. How do we inject that code back into our program’s internal representation? ...