Init/Deinit

Constructor and Desctructor method do exist for struct in Cambo, and they can be defined by using keyword init and deinit respectively followed by the struct name.

Example 1: In code below, we're going to define a constructor for the struct Vect2 using init.

struct Vect2{
  float x, y;

  init Vect2(int x, int y){
    self.x = x;
    self.y = y;
  }
}

int main(string args[]){

  Vect2 vect = Vect(3, 4);

  return 0;
}

Notice how we created the instance by doing Vect(3, 4), this works because we have defined a constructor method for struct Vect2.

Example 2: This example, we're going to show deinit can be used to define the destructor of a struct.

struct Data{
  int data;

  deinit Data(){
    print("data was destroyed!\n");
  }
}

int main(string args[]){

  {
    Data data = Data();
  }

  return 0;
}

To actually see the data was destroyed! get printed to the output, we need to wrap with {} when creating an instance, so when it goes out of scope, the destructor will be invoked.