Structs & Enums

Product types versus sum types, and why enums plus exhaustive `match` eliminate a whole class of bugs that other languages catch at runtime, or don't catch at all.

Learn Rust struct basics, including named, tuple, and unit structs. Understand construction, field init shorthand, and update syntax with examples.

Learn to define and use methods and associated functions in Rust. Understand self receivers, constructor patterns, and how to group behavior with data.

Learn how Rust enums define types with multiple variants, carry data, and precisely model states, errors, and commands.

Learn to use Rust's match for pattern matching, including exhaustive matching, guards, bindings, and various pattern forms like literals and structs.

Learn to use Rust's if let, let else, and while let for ergonomic pattern matching, optional unwrapping, and guard clauses.

Learn how Rust's Option<T> and Result<T, E> enums handle presence/absence and success/failure, replacing nulls and exceptions.

Unpack structs, tuples, enums, and slices into bindings using patterns in Rust. Learn to extract fields, match nested data, and ignore parts.

Learn to use #[derive(...)] to auto-implement standard traits like Debug, Clone, and PartialEq for Rust structs and enums.

Learn best practices for designing Rust structs and enums to model data effectively, enforce invariants, and prevent illegal states.

A single-page roundup of every highlight bullet from the 11 pages in the Structs & Enums section, grouped by source page so you can scan all 53 takeaways without opening each article individually.