Rust anatomy

Project Components

A rust project comprises of

packages	build/test/share a collection of crates
crates	tree of modules that build a single library, or executable
modules	organize scope/privacy of paths
paths	files ?

Packages

A package is a collection of crates.

• it may have multiple executable crates
• it may only have one library crate

Crates

A crate can be either

• a library (has src/lib.rs entrypoint)
• an executable (has src/main.rs entrypoint)

Modules

Module names govern where they can be found within the filesystem.
Module locations are based on where they are defined

from the rust book:

backyard
├── Cargo.lock
├── Cargo.toml
└── src
    ├── garden
    │   └── vegetables.rs
    ├── garden.rs
    └── main.rs

The module foo's code could be

• src/foo.rs
• src/foo/mod.rs