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PregMatchParameterOutTypeExtension.php
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PregMatchParameterOutTypeExtension.php
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<?php declare(strict_types=1);
namespace Composer\Pcre\PHPStan;
use Composer\Pcre\Preg;
use PhpParser\Node\Expr\StaticCall;
use PHPStan\Analyser\Scope;
use PHPStan\Reflection\MethodReflection;
use PHPStan\Reflection\ParameterReflection;
use PHPStan\TrinaryLogic;
use PHPStan\Type\Php\RegexArrayShapeMatcher;
use PHPStan\Type\StaticMethodParameterOutTypeExtension;
use PHPStan\Type\Type;
final class PregMatchParameterOutTypeExtension implements StaticMethodParameterOutTypeExtension
{
/**
* @var RegexArrayShapeMatcher
*/
private $regexShapeMatcher;
public function __construct(
RegexArrayShapeMatcher $regexShapeMatcher
)
{
$this->regexShapeMatcher = $regexShapeMatcher;
}
public function isStaticMethodSupported(MethodReflection $methodReflection, ParameterReflection $parameter): bool
{
return
$methodReflection->getDeclaringClass()->getName() === Preg::class
&& in_array($methodReflection->getName(), [
'match', 'isMatch', 'matchStrictGroups', 'isMatchStrictGroups',
'matchAll', 'isMatchAll', 'matchAllStrictGroups', 'isMatchAllStrictGroups'
], true)
&& $parameter->getName() === 'matches';
}
public function getParameterOutTypeFromStaticMethodCall(MethodReflection $methodReflection, StaticCall $methodCall, ParameterReflection $parameter, Scope $scope): ?Type
{
$args = $methodCall->getArgs();
$patternArg = $args[0] ?? null;
$matchesArg = $args[2] ?? null;
$flagsArg = $args[3] ?? null;
if (
$patternArg === null || $matchesArg === null
) {
return null;
}
$flagsType = PregMatchFlags::getType($flagsArg, $scope);
if ($flagsType === null) {
return null;
}
if (stripos($methodReflection->getName(), 'matchAll') !== false) {
return $this->regexShapeMatcher->matchAllExpr($patternArg->value, $flagsType, TrinaryLogic::createMaybe(), $scope);
}
return $this->regexShapeMatcher->matchExpr($patternArg->value, $flagsType, TrinaryLogic::createMaybe(), $scope);
}
}

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Aug 19 2026, 21:15 (7 w, 5 d ago)
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PregMatchParameterOutTypeExtension.php (2 KB)

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