iPublikuj /
packages
Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like Package 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 Package, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 33 | 1 | abstract class Package extends Nette\Object implements IPackage |
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| 34 | { |
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| 35 | /** |
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| 36 | * @var mixed |
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| 37 | */ |
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| 38 | protected $composerData; |
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| 39 | |||
| 40 | /** |
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| 41 | * @param mixed[] $composerData |
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| 42 | */ |
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| 43 | public function __construct(array $composerData) |
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| 51 | |||
| 52 | /** |
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| 53 | * {@inheritdoc} |
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| 54 | */ |
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| 55 | public function getName() : string |
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| 59 | |||
| 60 | /** |
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| 61 | * {@inheritdoc} |
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| 62 | */ |
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| 63 | public function getTitle() |
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| 69 | |||
| 70 | /** |
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| 71 | * {@inheritdoc} |
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| 72 | */ |
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| 73 | public function hasTitle() : bool |
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| 77 | |||
| 78 | /** |
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| 79 | * {@inheritdoc} |
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| 80 | */ |
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| 81 | public function getDescription() |
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| 85 | |||
| 86 | /** |
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| 87 | * {@inheritdoc} |
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| 88 | */ |
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| 89 | public function getVersion() : string |
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| 93 | |||
| 94 | /** |
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| 95 | * {@inheritdoc} |
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| 96 | */ |
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| 97 | public function getType() : string |
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| 102 | /** |
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| 103 | * {@inheritdoc} |
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| 104 | */ |
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| 105 | View Code Duplication | public function getKeywords() : Utils\ArrayHash |
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| 118 | /** |
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| 119 | * {@inheritdoc} |
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| 120 | */ |
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| 121 | public function getHomepage() |
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| 125 | |||
| 126 | /** |
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| 127 | * {@inheritdoc} |
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| 128 | */ |
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| 129 | public function getReleaseDate() |
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| 143 | /** |
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| 144 | * {@inheritdoc} |
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| 145 | */ |
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| 146 | View Code Duplication | public function getLicense() : Utils\ArrayHash |
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| 158 | |||
| 159 | /** |
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| 160 | * {@inheritdoc} |
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| 161 | */ |
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| 162 | public function getAuthors() : Utils\ArrayHash |
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| 174 | /** |
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| 175 | * {@inheritdoc} |
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| 176 | */ |
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| 177 | public function getSupport() |
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| 185 | View Code Duplication | public function getRequire() : array |
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| 203 | View Code Duplication | public function getRequireDev() : array |
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| 219 | * {@inheritdoc} |
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| 221 | public function getAutoload() : Utils\ArrayHash |
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| 232 | /** |
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| 233 | * {@inheritdoc} |
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| 234 | */ |
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| 235 | public function getExtra() : Utils\ArrayHash |
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| 247 | * {@inheritdoc} |
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| 248 | */ |
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| 249 | View Code Duplication | public function getConfiguration() : Utils\ArrayHash |
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| 261 | * {@inheritdoc} |
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| 263 | View Code Duplication | public function getScripts() : Utils\ArrayHash |
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| 275 | * {@inheritdoc} |
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| 276 | */ |
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| 277 | public function getUniqueName() : string |
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| 282 | /** |
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| 283 | * {@inheritdoc} |
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| 284 | */ |
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| 285 | public function getPath() : string |
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| 291 | |||
| 292 | /** |
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| 293 | * {@inheritdoc} |
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| 294 | */ |
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| 295 | public function compare(IPackage $package, string $operator = '==') : bool |
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| 300 | |||
| 301 | /** |
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| 302 | * {@inheritdoc} |
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| 303 | */ |
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| 304 | public function __toString() : string |
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| 308 | } |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.