A deep dive into the Newtype pattern in Rust — single-field structs that wrap an underlying type to enforce semantic distinctions. Covers the difference between newtypes and type aliases, the importance of keeping the inner field private, and two primary use cases: resource handlers (e.g., graph node indices) and validated
Table of contents
What are newtypes?Why use newtypes?Hiding underlying typeIs a newtype always a goto?Common pitfall – hidden conversionFinal wordSort: