Traits

Traits are extremely useful in Rust as they allow us to do different things. One of the things, for example, is an interface definition. They allow us to define a shared interface for methods that different types need to implement. Those types could be a structure or an enum, for example. In this lesson, we will build a trait for an enum and see how it works.

Note: In Rust, there's no direct equivalent for interfaces as there is in other languages, like C#, however, by making use of traits, we can achieve similar functionality. By building a trait for a type, we specify the functionality that the type is supposed to provide.

Code implementation

In Rust, we can use traits to define a specific behavior for different types. They allow us to declare methods that types can implement, providing a form of code reuse. Traits are similar to interfaces in other programming languages. Let’s create a Character enum with different variants and learn how we can use a trait with it.