Inheritance

Flow-Wing supports Single Inheritance.

Classes

Flow-Wing supports object-oriented programming with class definitions. Classes can contain properties and methods. Here's an example:

Example:

class Vehicle {
  var make:str
  var model:str
  var year:int

  init(make:str, model:str, year:int) -> nthg {
      self.make = make
      self.model = model
      self.year = year
  }

  getDetails() -> str {
      return self.year + " " + self.make + " " + self.model
  }

  printDetails() -> nthg {
      print("Vehicle: ", self.getDetails())
  }
}

Inheritance

Classes can inherit from other classes using the extends keyword. Here's an example of a Car class that inherits from Vehicle:

Example:

class Car extends Vehicle {
  var doors: int
  init(make: str, model: str, year: int, doors: int) -> nthg {
      super(make, model, year)
      self.doors = doors
  }

  getDetails() -> str {
      return self.year + " " + self.make + " " + self.model + " with " + self.doors + " doors"
  }

  printDetails() -> nthg {
      print("Car: ", self.getDetails())
  } 

}

Using Classes and Functions

Here’s how you can use these classes and functions in a main function:

fun printVehicleDetails(v: Vehicle) -> nthg {
  v.printDetails()
}

fun main() -> nthg {
  var vehicle:Vehicle = new Vehicle("Toyota", "Camry", 2020)
  var car:Car = new Car("Honda", "Civic", 2022, 4)

  printVehicleDetails(vehicle)
  printVehicleDetails(car)
}

main()