Learn Rust in a Month of Lunches

4 Building your own types

This chapter covers

• Structs, which you can use to group values to build your own types
• Enums, which are similar syntax to structs but used for choices, not groupings
• Implementing types, which gives methods to your structs and enums
• More on destructuring and taking types apart
• References and the dot operator

It’s now time to look at the main ways to build your own types in Rust: structs and enums. You’ll also learn how to implement functions attached to and called on these types, called methods. These methods use the keyword self a lot, so get ready to see it!

4.1 A quick overview of structs and enums

Structs and enums have a similar syntax and are easiest to learn together, so that’s what we’ll do here. They also work ...