Function normalize

controllers/trace/util.go:804–822

normalize normalizes the default value of fields to a uniform format, for example, a list with a length of 0 is normalized to nil. The purpose is making the object easily to be compared by reflect.DeepEqual.

(obj client.Object)

// normalize normalizes the default value of fields to a uniform format, for example, a list with a length of 0 is normalized to nil.
// The purpose is making the object easily to be compared by reflect.DeepEqual.
func normalize(obj client.Object) (client.Object, error) {
	if obj == nil {
		return nil, nil
	}
	data, err := json.Marshal(obj)
	if err != nil {
		return nil, err
	}
	t := reflect.TypeOf(obj)
	if t.Kind() == reflect.Ptr {
		t = t.Elem()
	}
	newObj := reflect.New(t).Interface().(client.Object)
	err = json.Unmarshal(data, newObj)
	if err != nil {
		return nil, err
	}
	return newObj, nil
}