1 | <?php |
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2 | /** |
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3 | * This code is licensed under the BSD 3-Clause License. |
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4 | * |
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5 | * Copyright (c) 2017, Maks Rafalko |
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6 | * All rights reserved. |
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7 | * |
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8 | * Redistribution and use in source and binary forms, with or without |
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9 | * modification, are permitted provided that the following conditions are met: |
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10 | * |
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11 | * * Redistributions of source code must retain the above copyright notice, this |
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12 | * list of conditions and the following disclaimer. |
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13 | * |
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14 | * * Redistributions in binary form must reproduce the above copyright notice, |
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15 | * this list of conditions and the following disclaimer in the documentation |
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16 | * and/or other materials provided with the distribution. |
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17 | * |
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18 | * * Neither the name of the copyright holder nor the names of its |
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19 | * contributors may be used to endorse or promote products derived from |
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20 | * this software without specific prior written permission. |
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21 | * |
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22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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23 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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25 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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28 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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29 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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30 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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31 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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32 | */ |
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33 | |||
34 | declare(strict_types=1); |
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35 | |||
36 | namespace Infection\Mutator\Arithmetic; |
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37 | |||
38 | use Infection\Mutator\Definition; |
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39 | use Infection\Mutator\GetMutatorName; |
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40 | use Infection\Mutator\Mutator; |
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41 | use Infection\Mutator\MutatorCategory; |
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42 | use PhpParser\Node; |
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43 | |||
44 | /** |
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45 | * @internal |
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46 | */ |
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47 | final class Exponentiation implements Mutator |
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48 | { |
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49 | use GetMutatorName; |
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50 | |||
51 | public static function getDefinition(): ?Definition |
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52 | { |
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53 | return new Definition( |
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54 | <<<'TXT' |
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55 | Replaces an exponentiation operator (`**`) with a division assignment operator (`/`). |
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56 | TXT |
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57 | , |
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58 | MutatorCategory::ORTHOGONAL_REPLACEMENT, |
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59 | null |
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60 | ); |
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61 | } |
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62 | |||
63 | /** |
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64 | * @param Node\Expr\BinaryOp\Pow $node |
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65 | * |
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66 | * @return iterable<Node\Expr\BinaryOp\Div> |
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67 | */ |
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68 | public function mutate(Node $node): iterable |
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69 | { |
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70 | yield new Node\Expr\BinaryOp\Div($node->left, $node->right, $node->getAttributes()); |
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71 | } |
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72 | |||
73 | public function canMutate(Node $node): bool |
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74 | { |
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75 | return $node instanceof Node\Expr\BinaryOp\Pow; |
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76 | } |
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77 | } |
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78 |