The Little Book of Rust Macros

Introduction - The Little Book of Rust Macros

Comprehensive guide to understanding and writing Rust macros:

What It Covers:

  • Macro Fundamentals: How macros work in Rust’s compilation process
  • Declarative Macros: macro_rules! patterns and syntax
  • Procedural Macros: Custom derive, attribute, and function-like macros
  • Advanced Patterns: Complex macro techniques and best practices
  • Debugging: Tools and techniques for debugging macro code

Why Macros Matter in Rust:

  • Code Generation: Eliminate boilerplate and repetitive code
  • Domain-Specific Languages: Create custom syntax for specific use cases
  • Compile-Time Logic: Perform complex operations at compile time
  • Zero-Cost Abstractions: Generate efficient code without runtime overhead

Learning Path:

  1. Start with simple macro_rules! examples
  2. Understand pattern matching in macros
  3. Progress to procedural macros
  4. Learn debugging and testing techniques

The Rust Performance Book

Title Page - The Rust Performance Book

Authoritative guide to optimizing Rust code performance by Nicholas Nethercote:

Key Topics:

  • Profiling: Tools and techniques for measuring performance
  • Memory Management: Optimizing allocations and memory usage
  • CPU Optimization: Instruction-level optimizations
  • Compilation: Compiler flags and optimization settings
  • Benchmarking: Proper performance measurement techniques

Performance Areas:

  • Hot Path Optimization: Focus optimization efforts effectively
  • Data Structure Choice: Selecting optimal data structures
  • Algorithm Efficiency: Complexity analysis and optimization
  • System-Level Concerns: Cache efficiency, branch prediction

Why This Book Is Valuable:

  • Written by a Mozilla performance engineer
  • Real-world examples and case studies
  • Rust-specific optimization techniques
  • Practical, actionable advice

Both resources are essential for Rust developers looking to write more sophisticated and efficient code.