Structs

Structs are Nubo’s way to define custom data types.

A struct describes fields and their types. Calling the struct creates an instance.

struct User {
    name: string
    age: int
}

let user = User()

user.name = "Martin"
user.age = 19

println(user.name)

What Structs Give You

Feature	Description
Fields	Named, typed values stored on each instance.
Instances	Created by calling the struct, like User().
Type checking	Assigning a field checks the value type.
impl methods	Attach behavior to a struct.
Private fields	Hide fields from outside code.
Constructors	Use init to initialize instances.
Singleton patterns	Return the same instance from init.
Hooks	Customize string conversion, cloning, value conversion, indexing, iteration, and output.

Pages

Page	Description
Defining Structs	Create structs, fields, instances, and default values.
Fields	Field access, assignment, type checking, and iteration.
Impl Methods	Attach methods to structs and understand automatic self binding.
Constructors and Init	Initialize instances with init.
Singleton Structs	Return a shared instance from init.
Private Fields	Protect fields and expose controlled methods.
Struct Hooks	Use __string__, __clone__, __value__, __get__, __set__, __iterate__, and $convout.
Examples	Complete struct examples.