Macros

How Rust's macro system works as a whole - declarative versus procedural macros, compile-time expansion, and the hygiene guarantees that make macros composable instead of dangerous.

Learn Rust macros with 10 examples, covering declarative vs. procedural, macro_rules!, and macro hygiene to prevent variable capture.

Define declarative macros in Rust using macro_rules!, create lightweight DSLs, and handle repetitive boilerplate with pattern matching and expansion.

Debug Rust macros effectively. Learn to use cargo expand to view expanded code, eprintln! in proc macros, and trybuild for testing.

Learn Rust macro best practices, including when to use macro_rules! or proc macros, implementation details, and testing strategies.

A single-page roundup of every highlight bullet from the 10 pages in the Macros section, grouped by source page so you can scan all 56 takeaways without opening each article individually.