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:
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| 21 | View Code Duplication | class TerminateEvent extends Event |
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| 22 | { |
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| 23 | /** @var CommandInterface */ |
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| 24 | private $command; |
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| 26 | /** @var ResponseInterface */ |
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| 27 | private $response; |
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| 29 | /** |
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| 30 | * |
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| 31 | * @param CommandInterface $command |
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| 32 | * @param ResponseInterface $response |
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| 33 | */ |
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| 34 | public function __construct(CommandInterface $command, ResponseInterface $response) |
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| 40 | /** |
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| 41 | * |
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| 42 | * @param CommandInterface |
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| 43 | */ |
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| 44 | public function getCommand() |
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| 49 | /** |
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| 50 | * |
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| 51 | * @param ResponseInterface $response |
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| 52 | */ |
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| 53 | public function setResponse(ResponseInterface $response) |
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| 58 | /** |
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| 59 | * |
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| 60 | * @return ResponseInterface |
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| 61 | */ |
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| 62 | public function getResponse() |
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| 66 | } |
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