1 | <?php |
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16 | class CallbackHandler extends Handler |
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17 | { |
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18 | /** |
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19 | * @var callable |
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20 | */ |
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21 | protected $callable; |
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22 | |||
23 | /** |
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24 | * @throws InvalidArgumentException If argument is not callable |
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25 | * @param callable $callable |
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26 | */ |
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27 | 1 | public function __construct($callable) |
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28 | { |
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29 | 1 | if (!is_callable($callable)) { |
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30 | throw new InvalidArgumentException( |
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31 | 'Argument to ' . __METHOD__ . ' must be valid callable' |
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32 | ); |
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33 | } |
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34 | |||
35 | 1 | $this->callable = $callable; |
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36 | 1 | } |
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37 | |||
38 | /** |
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39 | * @return int|null |
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40 | */ |
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41 | 1 | public function handle() |
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52 | } |
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53 |