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| 1 | +<?php |
| 2 | + |
| 3 | +declare(strict_types=1); |
| 4 | + |
| 5 | +namespace Ticketswap\PhpCsFixerConfig\Fixer; |
| 6 | + |
| 7 | +use PhpCsFixer\AbstractFixer; |
| 8 | +use PhpCsFixer\FixerDefinition\FixerDefinition; |
| 9 | +use PhpCsFixer\FixerDefinition\FixerDefinitionInterface; |
| 10 | +use PhpCsFixer\FixerDefinition\VersionSpecification; |
| 11 | +use PhpCsFixer\FixerDefinition\VersionSpecificCodeSample; |
| 12 | +use PhpCsFixer\Tokenizer\CT; |
| 13 | +use PhpCsFixer\Tokenizer\FCT; |
| 14 | +use PhpCsFixer\Tokenizer\Tokens; |
| 15 | +use SplFileInfo; |
| 16 | + |
| 17 | +/** |
| 18 | + * Ensures PHPDoc comments are positioned above attributes on class declarations. |
| 19 | + */ |
| 20 | +final class PhpdocAboveAttributeFixer extends AbstractFixer |
| 21 | +{ |
| 22 | + public function getDefinition() : FixerDefinitionInterface |
| 23 | + { |
| 24 | + return new FixerDefinition( |
| 25 | + 'PHPDoc comment must be positioned above attributes on class declarations.', |
| 26 | + [ |
| 27 | + new VersionSpecificCodeSample( |
| 28 | + <<<'EOL' |
| 29 | + <?php |
| 30 | +
|
| 31 | + #[AsAlias] |
| 32 | + /** |
| 33 | + * This is a class comment. |
| 34 | + */ |
| 35 | + class MyClass {} |
| 36 | + |
| 37 | + EOL, |
| 38 | + new VersionSpecification(8_00_00), |
| 39 | + ), |
| 40 | + ], |
| 41 | + ); |
| 42 | + } |
| 43 | + |
| 44 | + public function isCandidate(Tokens $tokens) : bool |
| 45 | + { |
| 46 | + return $tokens->isTokenKindFound(\T_ATTRIBUTE) && $tokens->isTokenKindFound(\T_DOC_COMMENT); |
| 47 | + } |
| 48 | + |
| 49 | + /** |
| 50 | + * {@inheritdoc} |
| 51 | + * |
| 52 | + * Must run before NoBlankLinesAfterPhpdocFixer. |
| 53 | + */ |
| 54 | + public function getPriority() : int |
| 55 | + { |
| 56 | + return 1; |
| 57 | + } |
| 58 | + |
| 59 | + protected function applyFix(SplFileInfo $file, Tokens $tokens) : void |
| 60 | + { |
| 61 | + for ($index = $tokens->count() - 1; $index > 0; --$index) { |
| 62 | + if ( ! $tokens[$index]->isGivenKind(\T_CLASS)) { |
| 63 | + continue; |
| 64 | + } |
| 65 | + |
| 66 | + // Find the start of the class declaration (including attributes and PHPDoc) |
| 67 | + $startIndex = $this->findClassDeclarationStart($tokens, $index); |
| 68 | + |
| 69 | + // Look for PHPDoc and attributes between startIndex and class keyword |
| 70 | + $phpdocIndex = null; |
| 71 | + $firstAttributeIndex = null; |
| 72 | + |
| 73 | + for ($i = $startIndex; $i < $index; ++$i) { |
| 74 | + if ($tokens[$i]->isGivenKind(\T_DOC_COMMENT)) { |
| 75 | + $phpdocIndex = $i; |
| 76 | + } |
| 77 | + |
| 78 | + if ($tokens[$i]->isGivenKind(\T_ATTRIBUTE) && $firstAttributeIndex === null) { |
| 79 | + $firstAttributeIndex = $i; |
| 80 | + } |
| 81 | + } |
| 82 | + |
| 83 | + // If we have both PHPDoc and attribute, and PHPDoc comes after attribute, we need to swap |
| 84 | + if ($phpdocIndex !== null && $firstAttributeIndex !== null && $phpdocIndex > $firstAttributeIndex) { |
| 85 | + $this->swapPhpdocAndAttributes($tokens, $phpdocIndex, $firstAttributeIndex, $index); |
| 86 | + } |
| 87 | + } |
| 88 | + } |
| 89 | + |
| 90 | + private function findClassDeclarationStart(Tokens $tokens, int $classIndex) : int |
| 91 | + { |
| 92 | + $index = $classIndex; |
| 93 | + |
| 94 | + while ($index > 0) { |
| 95 | + $prevIndex = $tokens->getPrevMeaningfulToken($index - 1); |
| 96 | + |
| 97 | + if ($prevIndex === null) { |
| 98 | + break; |
| 99 | + } |
| 100 | + |
| 101 | + // Stop if we hit another class/interface/trait or function |
| 102 | + if ($tokens[$prevIndex]->isGivenKind([\T_CLASS, \T_INTERFACE, \T_TRAIT, \T_FUNCTION, \T_CLOSE_TAG, \T_OPEN_TAG]) || $tokens[$prevIndex]->equals(';')) { |
| 103 | + return $index; |
| 104 | + } |
| 105 | + |
| 106 | + // Continue past visibility modifiers, abstract, final, readonly |
| 107 | + if ($tokens[$prevIndex]->isGivenKind([\T_PUBLIC, \T_PROTECTED, \T_PRIVATE, \T_ABSTRACT, \T_FINAL, FCT::T_READONLY])) { |
| 108 | + $index = $prevIndex; |
| 109 | + |
| 110 | + continue; |
| 111 | + } |
| 112 | + |
| 113 | + // Continue past attributes |
| 114 | + if ($tokens[$prevIndex]->isGivenKind(CT::T_ATTRIBUTE_CLOSE)) { |
| 115 | + // Find the opening bracket of the attribute |
| 116 | + $attributeStart = $tokens->findBlockStart(Tokens::BLOCK_TYPE_ATTRIBUTE, $prevIndex); |
| 117 | + $index = $attributeStart; |
| 118 | + |
| 119 | + continue; |
| 120 | + } |
| 121 | + |
| 122 | + // Continue past PHPDoc |
| 123 | + if ($tokens[$prevIndex]->isGivenKind(\T_DOC_COMMENT)) { |
| 124 | + $index = $prevIndex; |
| 125 | + |
| 126 | + continue; |
| 127 | + } |
| 128 | + |
| 129 | + break; |
| 130 | + } |
| 131 | + |
| 132 | + return $index; |
| 133 | + } |
| 134 | + |
| 135 | + private function swapPhpdocAndAttributes(Tokens $tokens, int $phpdocIndex, int $firstAttributeIndex, int $classIndex) : void |
| 136 | + { |
| 137 | + // Find the end of the last attribute before the PHPDoc |
| 138 | + $lastAttributeEndIndex = $phpdocIndex - 1; |
| 139 | + while ($lastAttributeEndIndex > $firstAttributeIndex && $tokens[$lastAttributeEndIndex]->isWhitespace()) { |
| 140 | + --$lastAttributeEndIndex; |
| 141 | + } |
| 142 | + |
| 143 | + if ( ! $tokens[$lastAttributeEndIndex]->isGivenKind(CT::T_ATTRIBUTE_CLOSE)) { |
| 144 | + return; // Safety check |
| 145 | + } |
| 146 | + |
| 147 | + // Find the end of PHPDoc |
| 148 | + $phpdocEndIndex = $phpdocIndex; |
| 149 | + while ($phpdocEndIndex + 1 < $classIndex && $tokens[$phpdocEndIndex + 1]->isWhitespace()) { |
| 150 | + ++$phpdocEndIndex; |
| 151 | + } |
| 152 | + |
| 153 | + // Extract PHPDoc block |
| 154 | + $phpdocTokens = []; |
| 155 | + for ($j = $phpdocIndex; $j <= $phpdocEndIndex; ++$j) { |
| 156 | + $phpdocTokens[] = clone $tokens[$j]; |
| 157 | + } |
| 158 | + |
| 159 | + // Extract attribute block (attributes + whitespace after them up to PHPDoc) |
| 160 | + $attributeTokens = []; |
| 161 | + for ($j = $firstAttributeIndex; $j < $phpdocIndex; ++$j) { |
| 162 | + $attributeTokens[] = clone $tokens[$j]; |
| 163 | + } |
| 164 | + |
| 165 | + // Reconstruct in correct order: PHPDoc first, then attributes |
| 166 | + $newTokens = array_merge($phpdocTokens, $attributeTokens); |
| 167 | + |
| 168 | + // Replace the entire range |
| 169 | + $tokens->overrideRange($firstAttributeIndex, $phpdocEndIndex, $newTokens); |
| 170 | + } |
| 171 | +} |
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