Code Structure

Modules
Modules
Paths
Visibility Rules
Split your Code among Several Files and Folders

use Keyword
Avoid Writing Full Paths with the use Keyword
Bring a Function in Scope
Bring a Struct or Enum in Scope
Bring an Item from an External Crate into Scope

Dependencies
Use External Crates (Dependencies) in your Code
Bring Items from External Crates into Scope with the use Keyword

Code Organization
Code Organization for a Simple Library
Code Organization for a Complex Library
Less Common Code Organizations
Flatten the Module Hierarchy using Reexports
Code Organization for Binary Crates
Organize Large Projects using a Workspace
  • Package Layout.