Enum variant

As explained in Refactoring to Rust

An enum variant is one named alternative in an enum's finite set of possible values, optionally containing associated data.

How Refactoring to Rust covers it

How deep it goes

Defines variants, demonstrates matching, and shows associated data; it stops short of broader enum internals.

Examples

Uses FizzBuzz variants, a helper function, match arms, and a data-carrying NotDivisible(i32) variant.

What it assumes

Assumes a small FizzBuzz function and introduces enum-based result representation incrementally.

What you can do after

Build it from scratch by defining variants, returning them from functions, and matching each result.

How it connects

Connects enum variants with enums, match expressions, functions, and error handling.

liveBookmanning.com

Read Refactoring to Rust on liveBook Get the book at manning.com

Related concepts

• enumpart of · An enum is a type or language construct whose values are selected from a finite set of named alternatives, which may carry associated data.
• use declarationused by · A use declaration is Rust syntax that brings names or items from a module or crate into scope for unqualified access.

This explainer was generated by Manning's knowledge graph from the text of Refactoring to Rust. The section links point to the parts of the book it draws on.