mirror of https://github.com/rectorphp/rector.git
100 lines
3.2 KiB
PHP
100 lines
3.2 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\CodeQuality\Rector\FuncCall;
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use RectorPrefix202302\Nette\Utils\Strings;
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use PhpParser\Node;
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use PhpParser\Node\Arg;
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use PhpParser\Node\Expr\BinaryOp\Concat;
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use PhpParser\Node\Expr\FuncCall;
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use PhpParser\Node\Scalar\String_;
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use Rector\Core\Rector\AbstractRector;
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use Rector\NodeTypeResolver\Node\AttributeKey;
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use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
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use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
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/**
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* @see \Rector\Tests\CodeQuality\Rector\FuncCall\AddPregQuoteDelimiterRector\AddPregQuoteDelimiterRectorTest
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*/
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final class AddPregQuoteDelimiterRector extends AbstractRector
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{
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/**
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* @var string
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* @see https://www.php.net/manual/en/reference.pcre.pattern.modifiers.php
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*/
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private const ALL_MODIFIERS = 'imsxeADSUXJu';
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public function getRuleDefinition() : RuleDefinition
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{
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return new RuleDefinition('Add preg_quote delimiter when missing', [new CodeSample(<<<'CODE_SAMPLE'
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'#' . preg_quote('name') . '#';
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CODE_SAMPLE
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, <<<'CODE_SAMPLE'
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'#' . preg_quote('name', '#') . '#';
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CODE_SAMPLE
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)]);
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}
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/**
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* @return array<class-string<Node>>
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*/
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public function getNodeTypes() : array
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{
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return [FuncCall::class];
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}
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/**
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* @param FuncCall $node
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*/
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public function refactor(Node $node) : ?Node
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{
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if (!$this->isName($node, 'preg_quote')) {
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return null;
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}
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// already completed
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if (isset($node->args[1])) {
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return null;
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}
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$delimiter = $this->determineDelimiter($node);
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if ($delimiter === null) {
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return null;
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}
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$node->args[1] = new Arg(new String_($delimiter));
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return $node;
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}
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private function determineDelimiter(FuncCall $funcCall) : ?string
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{
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$concat = $this->getUppermostConcat($funcCall);
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if (!$concat instanceof Concat) {
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return null;
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}
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$leftMostConcatNode = $concat->left;
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while ($leftMostConcatNode instanceof Concat) {
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$leftMostConcatNode = $leftMostConcatNode->left;
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}
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$rightMostConcatNode = $concat->right;
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while ($rightMostConcatNode instanceof Concat) {
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$rightMostConcatNode = $rightMostConcatNode->right;
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}
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if (!$leftMostConcatNode instanceof String_) {
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return null;
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}
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$possibleLeftDelimiter = Strings::substring($leftMostConcatNode->value, 0, 1);
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if (!$rightMostConcatNode instanceof String_) {
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return null;
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}
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$possibleRightDelimiter = Strings::substring(\rtrim($rightMostConcatNode->value, self::ALL_MODIFIERS), -1, 1);
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if ($possibleLeftDelimiter === $possibleRightDelimiter) {
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return $possibleLeftDelimiter;
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}
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return null;
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}
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private function getUppermostConcat(FuncCall $funcCall) : ?Concat
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{
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$upperMostConcat = null;
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$parentNode = $funcCall->getAttribute(AttributeKey::PARENT_NODE);
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while ($parentNode instanceof Concat) {
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$upperMostConcat = $parentNode;
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$parentNode = $parentNode->getAttribute(AttributeKey::PARENT_NODE);
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}
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return $upperMostConcat;
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}
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}
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