Traits

Traits are special "skeleton" type definitions, they can define required properties and functions

Syntax

trait 'name'{(property declarations)} {
  (property and function declarations)
}

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1. trait

• All traits start with the trait keyword.

2. name

• Trait names must follow UpperCamelCase naming standards.

3. property declarations

• Traits support shorthand declaration of properties.

4. property and function declarations

• Traits support declaring the signature of properties and functions.

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Examples

trait Person {
  val name: Txt
  val age: Int
}

// or in shorthand

trait Person(val name: Txt, val age: Int)

trait with functions

trait Array {
  fun get(index: Int): All

  fun set(index: Int, value: All)
}