将《重构》一书中的Java 示例修改为Golang 示例
git clone --depth=1 https://github.com/nxlsBoy/book-refactor-golang.git请支持正版图书 - 下载链接
从数据结构层面去重构代码
| Patern | Expression | Progress |
|---|---|---|
| Self Encapsulate Field | 自我封装 - 将直接访问成员字段的方式修改为间接访问 |
✔ |
| Replace Data Value with Object | 结构对象替换简单类型 - 将简单数据类型替换为结构类型,易于扩展 |
✔ |
| Change Value to Reference | 值类型替换为引用类型 - 修改一处, 即可修改其他所有引用的地方 |
✔ |
| Change Reference to Value | ✘ | |
| Replace Array with Object | ✘ | |
| Duplicate Observed Data | ✘ | |
| Change Unidirectional Association to Bidirectional | ✘ | |
| Change Bidirectional Association to Unidirectional | ✘ | |
| Replace Magic Number with Symbolic Constant | ✘ | |
| Encapsulate Field | ✘ | |
| Encapsulate Collection | ✘ | |
| Replace Record with Data Class | ✘ | |
| Replace Type Code with Class | ✘ | |
| Replace Type Code with Subclasses | ✘ | |
| Replace Type Code with State/Strategy | ✘ | |
| Replace Subclass with Fields | ✘ |
针对函数调用的优化
| Patern | Expression | Prograss |
|---|---|---|
| Rename Method | 修改函数名 | ✔ |
| Add Parameter | 添加参数 | ✔ |
| Remove Parameter | 移除参数 | ✘ |
| Separate Query from Modifier | 查询与修改函数独立 | ✘ |
| Parameterize Method | 让函数携带参数 | ✘ |
| Replace Parameter with Explicit Methods | 以明确函数取代参数 | ✘ |
| Preserve Whole Object | 保持对象完整 | ✘ |
| Replace Parameter with Methods | 以函数取代参数 | ✘ |
| Introduce Paramter Object | 引入参数对象 | ✘ |
| Remove Setting Method | 溢出设置值函数 | ✘ |
| Hide Method | 隐藏函数 | ✘ |
| Replace Constructor with Factory Method | 工厂函数取代构造函数 | ✘ |
| Encapsulate Downcast | 封装向下转型 | ✘ |
| Replace Error Code with Exception | 以异常取代错误骂 | ✘ |
| Replace Exception with Test | 以测试取代异常 | ✘ |