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<?php declare (strict_types=1); namespace Rector\CodeQuality\Rector\FuncCall; use RectorPrefix202208\Nette\Utils\Strings; use PhpParser\Node; use PhpParser\Node\Arg; use PhpParser\Node\Expr\BinaryOp\Concat; use PhpParser\Node\Expr\FuncCall; use PhpParser\Node\Scalar\String_; use Rector\Core\Rector\AbstractRector; use Rector\NodeTypeResolver\Node\AttributeKey; use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; /** * @see \Rector\Tests\CodeQuality\Rector\FuncCall\AddPregQuoteDelimiterRector\AddPregQuoteDelimiterRectorTest */ final class AddPregQuoteDelimiterRector extends AbstractRector { /** * @var string * @see https://www.php.net/manual/en/reference.pcre.pattern.modifiers.php */ private const ALL_MODIFIERS = 'imsxeADSUXJu'; public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Add preg_quote delimiter when missing', [new CodeSample(<<<'CODE_SAMPLE' '#' . preg_quote('name') . '#'; CODE_SAMPLE , <<<'CODE_SAMPLE' '#' . preg_quote('name', '#') . '#'; CODE_SAMPLE )]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [FuncCall::class]; } /** * @param FuncCall $node */ public function refactor(Node $node) : ?Node { if (!$this->isName($node, 'preg_quote')) { return null; } // already completed if (isset($node->args[1])) { return null; } $delimiter = $this->determineDelimiter($node); if ($delimiter === null) { return null; } $node->args[1] = new Arg(new String_($delimiter)); return $node; } private function determineDelimiter(FuncCall $funcCall) : ?string { $concat = $this->getUppermostConcat($funcCall); if (!$concat instanceof Concat) { return null; } $leftMostConcatNode = $concat->left; while ($leftMostConcatNode instanceof Concat) { $leftMostConcatNode = $leftMostConcatNode->left; } $rightMostConcatNode = $concat->right; while ($rightMostConcatNode instanceof Concat) { $rightMostConcatNode = $rightMostConcatNode->right; } if (!$leftMostConcatNode instanceof String_) { return null; } $possibleLeftDelimiter = Strings::substring($leftMostConcatNode->value, 0, 1); if (!$rightMostConcatNode instanceof String_) { return null; } $possibleRightDelimiter = Strings::substring(\rtrim($rightMostConcatNode->value, self::ALL_MODIFIERS), -1, 1); if ($possibleLeftDelimiter === $possibleRightDelimiter) { return $possibleLeftDelimiter; } return null; } private function getUppermostConcat(FuncCall $funcCall) : ?Concat { $upperMostConcat = null; $parent = $funcCall->getAttribute(AttributeKey::PARENT_NODE); while ($parent instanceof Concat) { $upperMostConcat = $parent; $parent = $parent->getAttribute(AttributeKey::PARENT_NODE); } return $upperMostConcat; } }
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