The Little Book of Rust Macros

---

This book is an attempt to distil the Rust community’s collective knowledge of Rust macros.

• Macros, A Methodical Introduction
  • Syntax Extensions
    • Source Analysis
    • Macros in the AST
    • Expansion
  • macro_rules!
  • Minutiae
    • Captures and Expansion Redux
    • Hygiene
    • Non-Identifier Identifiers
    • Debugging
    • Scoping
    • Import/Export
• Macros, A Practical Introduction
• Patterns
  • Callbacks
  • Incremental TT Munchers
  • Internal Rules
  • Push-Down Accumulation
  • Repetition Replacement
  • Trailing Separators
  • TT Bundling
  • Visibility
  • Provisional
• Building Blocks
  • AST Coercion
  • Counting
  • Enum Parsing
• Annotated Examples
  • Ook!