Complex classes like ClassGenerator 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 ClassGenerator, and based on these observations, apply Extract Interface, too.
1 | <?php declare(strict_types = 1); |
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13 | class ClassGenerator extends AbstractGenerator |
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14 | { |
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15 | use AbstractFinalTrait; |
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16 | |||
17 | /** OOP public visibility */ |
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18 | const VISIBILITY_PUBLIC = 'public'; |
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19 | |||
20 | /** OOP protected visibility */ |
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21 | const VISIBILITY_PROTECTED = 'protected'; |
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22 | |||
23 | /** OOP private visibility */ |
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24 | const VISIBILITY_PRIVATE = 'private'; |
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25 | |||
26 | /** @var string Class name */ |
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27 | protected $className; |
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28 | |||
29 | /** @var string Parent class name */ |
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30 | protected $parentClassName; |
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31 | |||
32 | /** @var string Class namespace */ |
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33 | protected $namespace; |
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34 | |||
35 | /** @var array Collection of class uses */ |
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36 | protected $uses = []; |
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37 | |||
38 | /** @var array Collection of class interfaces */ |
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39 | protected $interfaces = []; |
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40 | |||
41 | /** @var array Collection of class used traits */ |
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42 | protected $traits = []; |
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43 | |||
44 | /** @var string Multi-line file description */ |
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45 | protected $fileDescription; |
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46 | |||
47 | /** |
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48 | * ClassGenerator constructor. |
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49 | * |
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50 | * @param string $className Class name |
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51 | * @param AbstractGenerator $parent Parent generator |
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52 | */ |
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53 | public function __construct(string $className, AbstractGenerator $parent = null) |
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59 | |||
60 | /** |
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61 | * Set class file description. |
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62 | * |
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63 | * @param array $description Collection of class file description lines |
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64 | * |
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65 | * @return ClassGenerator |
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66 | */ |
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67 | public function defDescription(array $description) : ClassGenerator |
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78 | |||
79 | /** |
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80 | * Set class namespace. |
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81 | * |
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82 | * @param string $namespace |
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83 | * |
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84 | * @return ClassGenerator |
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85 | */ |
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86 | public function defNamespace(string $namespace) : ClassGenerator |
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92 | |||
93 | /** |
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94 | * Set class use. |
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95 | * |
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96 | * @param string $use Use class name |
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97 | * @param string $alias Use class name |
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98 | * |
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99 | * @return ClassGenerator |
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100 | */ |
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101 | public function defUse(string $use, string $alias = null) : ClassGenerator |
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112 | |||
113 | /** |
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114 | * Set parent class. |
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115 | * |
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116 | * @param string $className Parent class name |
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117 | * |
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118 | * @return ClassGenerator |
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119 | */ |
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120 | public function defExtends(string $className) : ClassGenerator |
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126 | |||
127 | /** |
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128 | * Set implements interfaces. |
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129 | * |
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130 | * @param string $interfaceName Interface name |
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131 | * |
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132 | * @return ClassGenerator |
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133 | */ |
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134 | public function defImplements(string $interfaceName) : ClassGenerator |
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140 | |||
141 | /** |
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142 | * Set class trait use. |
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143 | * |
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144 | * @param string $trait Trait class name |
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145 | * |
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146 | * @return ClassGenerator |
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147 | */ |
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148 | public function defTrait(string $trait) : ClassGenerator |
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154 | |||
155 | /** |
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156 | * Set protected class property. |
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157 | * |
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158 | * @param string $name Property name |
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159 | * @param string $type Property type |
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160 | * @param mixed $value Property value |
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161 | * @param string $description Property description |
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162 | * |
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163 | * @return PropertyGenerator |
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164 | */ |
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165 | public function defProtectedProperty(string $name, string $type, $value, string $description = null) : PropertyGenerator |
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169 | |||
170 | /** |
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171 | * Set class property. |
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172 | * |
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173 | * @param string $name Property name |
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174 | * @param string $type Property type |
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175 | * @param mixed $value Property value |
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176 | * @param string $description Property description |
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177 | * |
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178 | * @return PropertyGenerator |
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179 | */ |
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180 | public function defProperty(string $name, string $type, $value = null, string $description = null) : PropertyGenerator |
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189 | |||
190 | /** |
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191 | * Set protected static class property. |
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192 | * |
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193 | * @param string $name Property name |
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194 | * @param string $type Property type |
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195 | * @param mixed $value Property value |
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196 | * @param string $description Property description |
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197 | * |
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198 | * @return PropertyGenerator |
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199 | */ |
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200 | public function defProtectedStaticProperty(string $name, string $type, $value, string $description = null) : PropertyGenerator |
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204 | |||
205 | /** |
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206 | * Set static class property. |
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207 | * |
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208 | * @param string $name Property name |
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209 | * @param string $type Property type |
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210 | * @param mixed $value Property value |
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211 | * @param string $description Property description |
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212 | * |
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213 | * @return PropertyGenerator |
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214 | */ |
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215 | public function defStaticProperty(string $name, string $type, $value, string $description = null) : PropertyGenerator |
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219 | |||
220 | /** |
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221 | * Set protected class method. |
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222 | * |
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223 | * @param string $name Method name |
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224 | * |
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225 | * @return MethodGenerator |
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226 | */ |
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227 | public function defProtectedMethod(string $name) : MethodGenerator |
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231 | |||
232 | /** |
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233 | * Set public class method. |
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234 | * |
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235 | * @param string $name Method name |
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236 | * |
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237 | * @return MethodGenerator |
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238 | */ |
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239 | public function defMethod(string $name) : MethodGenerator |
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243 | |||
244 | /** |
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245 | * Set protected static class method. |
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246 | * |
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247 | * @param string $name Method name |
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248 | * |
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249 | * @return MethodGenerator |
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250 | */ |
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251 | public function defProtectedStaticMethod(string $name) : MethodGenerator |
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255 | |||
256 | /** |
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257 | * Set public static class method. |
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258 | * |
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259 | * @param string $name Method name |
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260 | * |
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261 | * @return MethodGenerator |
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262 | */ |
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263 | public function defStaticMethod(string $name) : MethodGenerator |
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267 | |||
268 | /** |
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269 | * Set class constant. |
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270 | * |
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271 | * @param string $name |
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272 | * @param mixed $value |
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273 | * |
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274 | * @return $this|ClassConstantGenerator |
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275 | */ |
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276 | public function defConstant(string $name, $value, string $type, string $description) : ClassConstantGenerator |
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285 | |||
286 | protected function buildUsesCode(array $formattedCode) : array |
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300 | |||
301 | protected function buildCommentsCode(array $formattedCode) : array |
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310 | |||
311 | protected function buildTraitsCode(array $formattedCode, string $innerIndentation) : array |
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325 | |||
326 | protected function buildFileDescriptionCode(array $formattedCode) : array |
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335 | |||
336 | protected function buildConstantsCode(array $formattedCode) : array |
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345 | |||
346 | protected function buildPropertiesCode(array $formattedCode) : array |
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354 | |||
355 | protected function buildMethodsCode(array $formattedCode) : array |
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363 | |||
364 | protected function buildNamespaceCode(array $formattedCode = []) : array |
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377 | |||
378 | /** |
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379 | * {@inheritdoc} |
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380 | * @throws \InvalidArgumentException |
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381 | */ |
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382 | public function code(int $indentation = 0) : string |
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405 | |||
406 | /** |
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407 | * Build class definition. |
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408 | * |
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409 | * @return string Function definition |
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410 | */ |
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411 | protected function buildDefinition() |
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420 | } |
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421 |
In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
string
values, the empty string''
is a special case, in particular the following results might be unexpected: