Type declaration
Type names are in SnakeCase
type Person name: String age: Int
type Rectangle
width: Int
heigth: Int
x: Int
y: Int
Type declaration is the type constructor
The type declaration and the constructor of this type are one and the same.
To create an object, you just need to send a message from the fields of the type to the type itself
type Person name: String age: Int
person = Person name: "Alice" age: 24
type Rectangle
width: Int
heigth: Int
x: Int
y: Int
rectangle = Rectangle
width: 1
heigth: 2
x: 3
y: 4
You can change the order of the fields, this is very convenient if you want to add a new field, but do not want to add it to the end.
person = Person age: 24 name: "Alice"
No fields
Types with zero fields are completely fine
type Printer
Since all messages have a receiver in the field, you are always in the context of some type, so empty types can be used simply to organize the code
extend Printer [
on info::String = "Info: $info" echo
on debug::String = "Debug: $debug" echo
]
Last modified: 16 June 2024