Complex classes like Input often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Input, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 19 | class Input |
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| 20 | { |
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| 21 | |||
| 22 | /** |
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| 23 | * @var Definition |
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| 24 | */ |
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| 25 | protected $definition; |
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| 26 | |||
| 27 | /** |
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| 28 | * @var Option[] |
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| 29 | */ |
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| 30 | protected $options = []; |
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| 31 | |||
| 32 | /** |
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| 33 | * @var Argument[] |
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| 34 | */ |
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| 35 | protected $arguments = []; |
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| 36 | |||
| 37 | protected $interactive = true; |
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| 38 | |||
| 39 | private $tokens; |
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| 40 | private $parsed; |
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| 41 | |||
| 42 | public function __construct($argv = null) |
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| 54 | |||
| 55 | protected function setTokens(array $tokens) |
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| 59 | |||
| 60 | /** |
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| 61 | * 绑定实例 |
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| 62 | * @param Definition $definition A InputDefinition instance |
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| 63 | */ |
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| 64 | public function bind(Definition $definition): void |
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| 72 | |||
| 73 | /** |
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| 74 | * 解析参数 |
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| 75 | */ |
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| 76 | protected function parse(): void |
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| 94 | |||
| 95 | /** |
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| 96 | * 解析短选项 |
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| 97 | * @param string $token 当前的指令. |
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| 98 | */ |
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| 99 | private function parseShortOption(string $token): void |
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| 115 | |||
| 116 | /** |
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| 117 | * 解析短选项 |
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| 118 | * @param string $name 当前指令 |
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| 119 | * @throws \RuntimeException |
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| 120 | */ |
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| 121 | private function parseShortOptionSet(string $name): void |
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| 139 | |||
| 140 | /** |
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| 141 | * 解析完整选项 |
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| 142 | * @param string $token 当前指令 |
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| 143 | */ |
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| 144 | private function parseLongOption(string $token): void |
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| 154 | |||
| 155 | /** |
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| 156 | * 解析参数 |
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| 157 | * @param string $token 当前指令 |
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| 158 | * @throws \RuntimeException |
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| 159 | */ |
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| 160 | private function parseArgument(string $token): void |
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| 177 | |||
| 178 | /** |
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| 179 | * 添加一个短选项的值 |
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| 180 | * @param string $shortcut 短名称 |
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| 181 | * @param mixed $value 值 |
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| 182 | * @throws \RuntimeException |
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| 183 | */ |
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| 184 | private function addShortOption(string $shortcut, $value): void |
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| 192 | |||
| 193 | /** |
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| 194 | * 添加一个完整选项的值 |
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| 195 | * @param string $name 选项名 |
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| 196 | * @param mixed $value 值 |
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| 197 | * @throws \RuntimeException |
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| 198 | */ |
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| 199 | private function addLongOption(string $name, $value): void |
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| 242 | |||
| 243 | /** |
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| 244 | * 获取第一个参数 |
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| 245 | * @return string|null |
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| 246 | */ |
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| 247 | public function getFirstArgument() |
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| 258 | |||
| 259 | /** |
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| 260 | * 检查原始参数是否包含某个值 |
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| 261 | * @param string|array $values 需要检查的值 |
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| 262 | * @return bool |
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| 263 | */ |
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| 264 | public function hasParameterOption($values): bool |
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| 278 | |||
| 279 | /** |
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| 280 | * 获取原始选项的值 |
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| 281 | * @param string|array $values 需要检查的值 |
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| 282 | * @param mixed $default 默认值 |
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| 283 | * @return mixed The option value |
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| 284 | */ |
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| 285 | public function getParameterOption($values, $default = false) |
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| 306 | |||
| 307 | /** |
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| 308 | * 验证输入 |
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| 309 | * @throws \RuntimeException |
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| 310 | */ |
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| 311 | public function validate() |
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| 317 | |||
| 318 | /** |
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| 319 | * 检查输入是否是交互的 |
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| 320 | * @return bool |
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| 321 | */ |
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| 322 | public function isInteractive(): bool |
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| 326 | |||
| 327 | /** |
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| 328 | * 设置输入的交互 |
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| 329 | * @param bool |
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| 330 | */ |
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| 331 | public function setInteractive(bool $interactive): void |
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| 335 | |||
| 336 | /** |
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| 337 | * 获取所有的参数 |
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| 338 | * @return Argument[] |
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| 339 | */ |
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| 340 | public function getArguments(): array |
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| 344 | |||
| 345 | /** |
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| 346 | * 根据名称获取参数 |
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| 347 | * @param string $name 参数名 |
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| 348 | * @return mixed |
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| 349 | * @throws \InvalidArgumentException |
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| 350 | */ |
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| 351 | public function getArgument(string $name) |
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| 360 | |||
| 361 | /** |
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| 362 | * 设置参数的值 |
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| 363 | * @param string $name 参数名 |
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| 364 | * @param string $value 值 |
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| 365 | * @throws \InvalidArgumentException |
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| 366 | */ |
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| 367 | public function setArgument(string $name, $value) |
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| 375 | |||
| 376 | /** |
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| 377 | * 检查是否存在某个参数 |
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| 378 | * @param string|int $name 参数名或位置 |
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| 379 | * @return bool |
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| 380 | */ |
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| 381 | public function hasArgument($name): bool |
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| 385 | |||
| 386 | /** |
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| 387 | * 获取所有的选项 |
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| 388 | * @return Option[] |
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| 389 | */ |
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| 390 | public function getOptions(): array |
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| 394 | |||
| 395 | /** |
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| 396 | * 获取选项值 |
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| 397 | * @param string $name 选项名称 |
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| 398 | * @return mixed |
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| 399 | * @throws \InvalidArgumentException |
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| 400 | */ |
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| 401 | public function getOption(string $name) |
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| 409 | |||
| 410 | /** |
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| 411 | * 设置选项值 |
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| 412 | * @param string $name 选项名 |
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| 413 | * @param string|bool $value 值 |
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| 414 | * @throws \InvalidArgumentException |
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| 415 | */ |
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| 416 | public function setOption(string $name, $value): void |
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| 424 | |||
| 425 | /** |
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| 426 | * 是否有某个选项 |
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| 427 | * @param string $name 选项名 |
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| 428 | * @return bool |
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| 429 | */ |
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| 430 | public function hasOption(string $name): bool |
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| 434 | |||
| 435 | /** |
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| 436 | * 转义指令 |
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| 437 | * @param string $token |
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| 438 | * @return string |
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| 439 | */ |
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| 440 | public function escapeToken(string $token): string |
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| 444 | |||
| 445 | /** |
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| 446 | * 返回传递给命令的参数的字符串 |
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| 447 | * @return string |
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| 448 | */ |
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| 449 | public function __toString() |
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| 465 | } |
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| 466 |