Complex classes like ReflectionParameter 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 ReflectionParameter, and based on these observations, apply Extract Interface, too.
1 | <?php |
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23 | class ReflectionParameter extends BaseReflectionParameter |
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24 | { |
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25 | use InternalPropertiesEmulationTrait; |
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26 | |||
27 | /** |
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28 | * Reflection function or method |
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29 | * |
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30 | * @var \ReflectionFunctionAbstract |
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31 | */ |
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32 | private $declaringFunction; |
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33 | |||
34 | /** |
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35 | * Stores the default value for node (if present) |
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36 | * |
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37 | * @var mixed |
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38 | */ |
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39 | private $defaultValue = null; |
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40 | |||
41 | /** |
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42 | * Whether or not default value is constant |
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43 | * |
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44 | * @var bool |
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45 | */ |
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46 | private $isDefaultValueConstant = false; |
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47 | |||
48 | /** |
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49 | * Name of the constant of default value |
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50 | * |
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51 | * @var string |
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52 | */ |
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53 | private $defaultValueConstantName; |
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54 | |||
55 | /** |
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56 | * Index of parameter in the list |
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57 | * |
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58 | * @var int |
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59 | */ |
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60 | private $parameterIndex = 0; |
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61 | |||
62 | /** |
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63 | * Concrete parameter node |
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64 | * |
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65 | * @var Param |
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66 | */ |
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67 | private $parameterNode; |
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68 | |||
69 | /** |
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70 | * Initializes a reflection for the property |
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71 | * |
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72 | * @param string|array $unusedFunctionName Name of the function/method |
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73 | * @param string $parameterName Name of the parameter to reflect |
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74 | * @param Param $parameterNode Parameter definition node |
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75 | * @param int $parameterIndex Index of parameter |
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76 | * @param \ReflectionFunctionAbstract $declaringFunction |
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77 | */ |
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78 | 32 | public function __construct( |
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106 | |||
107 | /** |
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108 | * Returns an AST-node for parameter |
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109 | * |
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110 | * @return Param |
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111 | */ |
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112 | public function getNode() |
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116 | |||
117 | /** |
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118 | * Emulating original behaviour of reflection |
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119 | */ |
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120 | 1 | public function ___debugInfo() |
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126 | |||
127 | /** |
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128 | * Returns string representation of this parameter. |
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129 | * |
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130 | * @return string |
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131 | */ |
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132 | 21 | public function __toString() |
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162 | |||
163 | /** |
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164 | * {@inheritDoc} |
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165 | */ |
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166 | 22 | public function allowsNull() |
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180 | |||
181 | /** |
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182 | * {@inheritDoc} |
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183 | */ |
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184 | 3 | public function canBePassedByValue() |
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188 | |||
189 | /** |
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190 | * @inheritDoc |
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191 | */ |
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192 | 2 | public function getClass() |
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217 | |||
218 | /** |
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219 | * {@inheritDoc} |
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220 | */ |
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221 | 3 | public function getDeclaringClass() |
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229 | |||
230 | /** |
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231 | * {@inheritDoc} |
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232 | */ |
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233 | 16 | public function getDeclaringFunction() |
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237 | |||
238 | /** |
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239 | * {@inheritDoc} |
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240 | */ |
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241 | 13 | public function getDefaultValue() |
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249 | |||
250 | /** |
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251 | * {@inheritDoc} |
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252 | */ |
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253 | 6 | public function getDefaultValueConstantName() |
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261 | |||
262 | /** |
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263 | * @inheritDoc |
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264 | */ |
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265 | 22 | public function getName() |
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269 | |||
270 | /** |
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271 | * {@inheritDoc} |
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272 | */ |
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273 | 3 | public function getPosition() |
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277 | |||
278 | /** |
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279 | * @inheritDoc |
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280 | */ |
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281 | 22 | public function getType() |
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300 | |||
301 | /** |
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302 | * @inheritDoc |
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303 | */ |
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304 | 4 | public function hasType() |
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310 | |||
311 | /** |
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312 | * @inheritDoc |
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313 | */ |
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314 | 3 | public function isArray() |
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318 | |||
319 | /** |
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320 | * @inheritDoc |
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321 | */ |
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322 | 3 | public function isCallable() |
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326 | |||
327 | /** |
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328 | * @inheritDoc |
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329 | */ |
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330 | 47 | public function isDefaultValueAvailable() |
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334 | |||
335 | /** |
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336 | * {@inheritDoc} |
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337 | */ |
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338 | 5 | public function isDefaultValueConstant() |
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342 | |||
343 | /** |
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344 | * {@inheritDoc} |
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345 | */ |
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346 | 38 | public function isOptional() |
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350 | |||
351 | /** |
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352 | * @inheritDoc |
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353 | */ |
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354 | 21 | public function isPassedByReference() |
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358 | |||
359 | /** |
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360 | * @inheritDoc |
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361 | */ |
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362 | 55 | public function isVariadic() |
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366 | |||
367 | /** |
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368 | * Returns if all following parameters have a default value definition. |
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369 | * |
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370 | * @return bool |
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371 | * @throws ReflectionException If could not fetch declaring function reflection |
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372 | */ |
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373 | 16 | protected function haveSiblingsDefalutValues() |
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390 | } |
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391 |