| 1 | <?php |
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| 21 | abstract class AbstractPrice implements PriceInterface |
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| 22 | { |
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| 23 | /** |
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| 24 | * @var integer |
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| 25 | */ |
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| 26 | protected $id; |
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| 27 | |||
| 28 | /** |
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| 29 | * @var Plan |
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| 30 | */ |
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| 31 | protected $plan; |
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| 32 | |||
| 33 | /** |
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| 34 | * @var Target |
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| 35 | */ |
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| 36 | protected $target; |
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| 37 | |||
| 38 | /** |
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| 39 | * @var Type |
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| 40 | */ |
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| 41 | protected $type; |
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| 42 | |||
| 43 | 3 | public function __construct($id, TargetInterface $target, TypeInterface $type) |
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| 44 | { |
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| 45 | 3 | $this->id = $id; |
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| 46 | 3 | $this->target = $target; |
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| 47 | 3 | $this->type = $type; |
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| 48 | 3 | } |
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| 49 | |||
| 50 | /** |
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| 51 | * {@inheritdoc} |
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| 52 | */ |
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| 53 | 2 | public function getTarget() |
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| 54 | { |
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| 55 | 2 | return $this->target; |
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| 56 | } |
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| 57 | |||
| 58 | /** |
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| 59 | * {@inheritdoc} |
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| 60 | */ |
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| 61 | 2 | public function getType() |
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| 62 | { |
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| 63 | 2 | return $this->type; |
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| 64 | } |
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| 65 | |||
| 66 | /** |
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| 67 | * {@inheritdoc} |
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| 68 | * Default sum calculation method: sum = price * usage. |
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| 69 | */ |
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| 70 | 1 | public function calculateSum(QuantityInterface $quantity) |
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| 71 | { |
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| 72 | 1 | $usage = $this->calculateUsage($quantity); |
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| 73 | 1 | if ($usage === null) { |
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| 74 | return null; |
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| 75 | } |
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| 76 | |||
| 77 | 1 | $price = $this->calculatePrice($quantity); |
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| 78 | 1 | if ($price === null) { |
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| 79 | return null; |
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| 80 | } |
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| 81 | |||
| 82 | 1 | return $price->multiply($usage->getQuantity()); |
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| 83 | } |
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| 84 | |||
| 85 | public static function create(array $data) |
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| 86 | { |
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| 87 | return new SinglePrice($data['id'], $data['target']); |
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| 88 | } |
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| 89 | |||
| 90 | /** |
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| 91 | * {@inheritdoc} |
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| 92 | */ |
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| 93 | abstract public function calculateUsage(QuantityInterface $quantity); |
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| 94 | |||
| 95 | /** |
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| 96 | * {@inheritdoc} |
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| 97 | */ |
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| 98 | abstract public function calculatePrice(QuantityInterface $action); |
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| 99 | } |
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| 100 |
Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a given class or a super-class is assigned to a property that is type hinted more strictly.
Either this assignment is in error or an instanceof check should be added for that assignment.