func MergeObject()

in utils/json.go [27:62]

• 36 lines of code
• 12 McCabe index (conditional complexity)

func MergeObject(old interface{}, new interface{}) interface{} {
	if new == nil {
		return new
	}
	switch oldValue := old.(type) {
	case map[string]interface{}:
		if newMap, ok := new.(map[string]interface{}); ok {
			res := make(map[string]interface{})
			for key, value := range oldValue {
				if _, ok := newMap[key]; ok {
					res[key] = MergeObject(value, newMap[key])
				} else {
					res[key] = value
				}
			}
			for key, newValue := range newMap {
				if res[key] == nil {
					res[key] = newValue
				}
			}
			return res
		}
	case []interface{}:
		if newArr, ok := new.([]interface{}); ok {
			if len(oldValue) != len(newArr) {
				return newArr
			}
			res := make([]interface{}, 0)
			for index := range oldValue {
				res = append(res, MergeObject(oldValue[index], newArr[index]))
			}
			return res
		}
	}
	return new
}