joeycumines / go-dotnotation Goto Github PK

func (p Accessor) Set(target interface{}, key string, value interface{}) error {
  properties := p.parser(key)
  var targetValue interface{} // added this
  for i, property := range properties {
    if i == (len(properties) - 1) {
      // we reached the last property
      return p.setter(target, property, value)
    }
    // attempt to get the next level, so we can set the last property
    var err error
    targetValue, err = p.getter(target, property) // assign to targetValue
    if err != nil {
      nextLevel := make(map[string]interface{}) // create next level as map[string]interface{}
      err = p.setter(target, property, nextLevel) // set to current target the next level
      target = nextLevel // change the target to nextLevel so next iteration will set on it.
      if err != nil {
        return err
      }
    } else {
      target = targetValue // let the code follow the idea of original target
    }
  }
  return errors.New("no properties parsed from key: " + key)
}