Mastering Rust - Second Edition

Modules, imports, and use statements

Languages often provide a way to split large code bases into multiple files to manage complexity. Java follows the convention of a single public class per .java file, while C++ provides us with header files and include statements. Rust is no different and provides us with modules. Modules are a way to namespace or organize code in a Rust program. To allow flexibility in organizing our code, there are multiple ways to create modules. Modules are a complex topic to understand and to make it brief for this section, we'll highlight only the important aspects about using them. Modules are covered in detail in Chapter 2, Managing Projects with Cargo. The following are the key takeaways about modules in Rust: ...