Crate and modules

How the rust project folder structure looks like

• hello-package

crate: box, container

Read input from cmd and files

• input-and-output
• check-name

Enum

• hello-enum
• display-location

Struct (class?)

struct is like tuple but it's a group of multiple items of mixed data types

elements are named

associated function: (static function?)

function associated with a struct data type

does not have a &self parameter

Generic types

Abstract stand-ins for concrete data types or other properties

Can be used with structs, functions, methods and more

Defined with <T>

Box<T>

• sum-boxes store data on the heap instead of on the stack smart pointer: provide additional functions beyond references Box<T> has ownership of the heap use case for Box<T>:

• store a type whose size cannot be known at compile time, example: recursive types

• transfer ownership of data rather than copy it on the stack

  • avoid copying large amount of data

Trait (interface)

(feature, character) Similar to interfaces in other programming languages

A collection of methods

Data types can implement a trait

Generics use traits to specify the capabilities of unknown data types

impl {trait} for {struct}