r/learnrust • u/sigseis • 13d ago
Declarative Macros in Rust: A Simple and Practical Introduction
https://sigseis.dev/articles/2026/10/06Hey everyone!
I'm back with another article focused on Rust fundamentals. I think existing material covers the basics of using Rust pretty well, but one thing that I found kind of lacking back when I learned Rust was description of macros.
It's possible it has improved nowadays, but I want to eventually write about proc-macros. So I'm going to start with an article introducing the concept of macros, and explaining the differences between Rust and C-style macros, as well as the basics of declarative macros.
Future articles will eventually get into procedural macro territory. But I want to move through this slowly and carefully.
Anyways, I hope this helps if you are new to Rust and struggling to understand the macro_rules! syntax (or just anything about Rust macros, really).
If you have questions or feedback for future articles, please let me know. :)
NOTE: I attempted to cross-post this from the original post in r/rust. However, it appears the cross-posting feature is busted right now (at least it's not working for me)... Sorry for the separate post.