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:
1 | <?php |
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21 | class Delivery extends JsonObject |
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22 | { |
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23 | const NOTIFICATION_TYPE = 'notificationType'; |
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24 | const TYPE_MESSAGE = 'Message'; |
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25 | const TYPE_RESOURCE_CREATED = 'ResourceCreated'; |
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26 | const TYPE_RESOURCE_UPDATED = 'ResourceUpdated'; |
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27 | const TYPE_RESOURCE_DELETED = 'ResourceDeleted'; |
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28 | |||
29 | 5 | public function fieldDefinitions() |
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30 | { |
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31 | return [ |
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32 | 5 | 'projectKey' => [static::TYPE => 'string'], |
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33 | 5 | static::NOTIFICATION_TYPE => [static::TYPE => 'string'], |
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34 | 5 | 'resource' => [static::TYPE => Reference::class], |
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35 | ]; |
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36 | } |
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37 | |||
38 | 5 | protected static function destinationType($typeId) |
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48 | |||
49 | 5 | View Code Duplication | public static function fromArray(array $data, $context = null) |
61 | } |
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62 |
This check looks for accesses to local static members using the fully qualified name instead of
self::
.While this is perfectly valid, the fully qualified name of
Certificate::TRIPLEDES_CBC
could just as well be replaced byself::TRIPLEDES_CBC
. Referencing local members withself::
assured the access will still work when the class is renamed, makes it perfectly clear that the member is in fact local and will usually be shorter.