wasmperson

  for(size_t i = size - 1; 0 <= i && i < size; i--){
  
  }

  let person_1 = { };
  let person_2 = { parent: person_1 };
  person_1.child = person_2;

  use std::cell::Cell;
  struct Person<'a> {
      parent: Option<&'a Person<'a>>,
      child: Cell<Option<&'a Person<'a>>>
  }

  let person_1 = Person {
      parent: None,
      child: Cell::new(None)
  };
    
  let person_2 = Person {
      parent: Some(&person_1),
      child: Cell::new(None)
  };
    
  person_1.child.set(Some(&person_2));