Idiomatic Rust

5 Design patterns: Beyond the basics

This chapter covers

• Metaprogramming with macros
• Implementing the builder pattern in Rust
• Building fluent interfaces
• Observing the observer pattern
• Understanding the command pattern
• Exploring the newtype pattern

Chapters 2 and 3 introduced the core Rust building blocks: generics, traits, pattern matching, and functional programming features. In this chapter, we’re going to build on what we learned in those chapters by exploring those themes further and examining design patterns in Rust.

Using what we’ve learned, we can start to build more concrete patterns in a way that is consistent with Rust idioms. Although we won’t explore all the possible patterns, I’ll present carefully chosen examples that demonstrate ...