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1 | <?php |
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2 | |||
3 | declare(strict_types=1); |
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4 | |||
5 | namespace Phpml\Tree\Node; |
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6 | |||
7 | use Phpml\Tree\Node; |
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8 | |||
9 | class BinaryNode implements Node |
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10 | { |
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11 | /** |
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12 | * @var self|null |
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13 | */ |
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14 | private $parent; |
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15 | |||
16 | /** |
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17 | * @var self|null |
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18 | */ |
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19 | private $left; |
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20 | |||
21 | /** |
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22 | * @var self|null |
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23 | */ |
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24 | private $right; |
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25 | |||
26 | public function parent(): ?self |
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27 | { |
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28 | return $this->parent; |
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29 | } |
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30 | |||
31 | public function left(): ?self |
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32 | { |
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33 | return $this->left; |
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34 | } |
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35 | |||
36 | public function right(): ?self |
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37 | { |
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38 | return $this->right; |
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39 | } |
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40 | |||
41 | public function height(): int |
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42 | { |
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43 | return 1 + max($this->left !== null ? $this->left->height() : 0, $this->right !== null ? $this->right->height() : 0); |
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44 | } |
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45 | |||
46 | public function balance(): int |
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47 | { |
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48 | return ($this->right !== null ? $this->right->height() : 0) - ($this->left !== null ? $this->left->height() : 0); |
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49 | } |
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50 | |||
51 | public function setParent(?self $node = null): void |
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52 | { |
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53 | $this->parent = $node; |
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54 | } |
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55 | |||
56 | public function attachLeft(self $node): void |
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57 | { |
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58 | $node->setParent($this); |
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59 | $this->left = $node; |
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0 ignored issues
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60 | } |
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61 | |||
62 | public function detachLeft(): void |
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63 | { |
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64 | if ($this->left !== null) { |
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65 | $this->left->setParent(); |
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66 | $this->left = null; |
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67 | } |
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68 | } |
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69 | |||
70 | public function attachRight(self $node): void |
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71 | { |
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72 | $node->setParent($this); |
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73 | $this->right = $node; |
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0 ignored issues
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It seems like
$node of type object<self> is incompatible with the declared type object<Phpml\Tree\Node\BinaryNode>|null of property $right .
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..
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74 | } |
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75 | |||
76 | public function detachRight(): void |
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77 | { |
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78 | if ($this->right !== null) { |
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79 | $this->right->setParent(); |
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80 | $this->right = null; |
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81 | } |
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82 | } |
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83 | } |
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84 |
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..