Macros

10 pages in this section.

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.

Explainer Rust Macros Metaprogramming

Macros Basics

What macros are and macro hygiene.

Rust Macros Basics Hygiene

macro_rules!

Declarative macros, matchers, and repetition.

Rust Macros Macro Rules Declarative

Procedural Macros Overview

Rust Macros Procedural Proc Macro

Derive Macros

Rust Macros Derive Proc Macro

Attribute Macros

Rust Macros Attribute Proc Macro

Function-like Proc Macros

Rust Macros Proc Macro Dsl

syn & quote

Rust Macros Syn Quote

Debugging Macros

`cargo expand` and diagnostics.

Rust Macros Debugging Cargo Expand

Macros Best Practices

Prefer functions/generics; reach for macros last.

Rust Macros Best Practices List

Macros

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Macros