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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\Analyser\SpecifiedTypes; use PHPStan\Analyser\TypeSpecifier; use PHPStan\Analyser\TypeSpecifierAwareExtension; use PHPStan\Analyser\TypeSpecifierContext; use PHPStan\Reflection\MethodReflection; use PHPStan\TrinaryLogic; use PHPStan\Type\Constant\ConstantArrayType; use PHPStan\Type\Php\RegexArrayShapeMatcher; use PHPStan\Type\StaticMethodTypeSpecifyingExtension; use PHPStan\Type\TypeCombinator; use PHPStan\Type\Type; final class PregMatchTypeSpecifyingExtension implements StaticMethodTypeSpecifyingExtension, TypeSpecifierAwareExtension { /** * @var TypeSpecifier */ private $typeSpecifier; /** * @var RegexArrayShapeMatcher */ private $regexShapeMatcher; public function __construct(RegexArrayShapeMatcher $regexShapeMatcher) { $this->regexShapeMatcher = $regexShapeMatcher; } public function setTypeSpecifier(TypeSpecifier $typeSpecifier): void { $this->typeSpecifier = $typeSpecifier; } public function getClass(): string { return Preg::class; } public function isStaticMethodSupported(MethodReflection $methodReflection, StaticCall $node, TypeSpecifierContext $context): bool { return in_array($methodReflection->getName(), [ 'match', 'isMatch', 'matchStrictGroups', 'isMatchStrictGroups', 'matchAll', 'isMatchAll', 'matchAllStrictGroups', 'isMatchAllStrictGroups' ], true) && !$context->null(); } public function specifyTypes(MethodReflection $methodReflection, StaticCall $node, Scope $scope, TypeSpecifierContext $context): SpecifiedTypes { $args = $node->getArgs(); $patternArg = $args[0] ?? null; $matchesArg = $args[2] ?? null; $flagsArg = $args[3] ?? null; if ( $patternArg === null || $matchesArg === null ) { return new SpecifiedTypes(); } $flagsType = PregMatchFlags::getType($flagsArg, $scope); if ($flagsType === null) { return new SpecifiedTypes(); } if (stripos($methodReflection->getName(), 'matchAll') !== false) { $matchedType = $this->regexShapeMatcher->matchAllExpr($patternArg->value, $flagsType, TrinaryLogic::createFromBoolean($context->true()), $scope); } else { $matchedType = $this->regexShapeMatcher->matchExpr($patternArg->value, $flagsType, TrinaryLogic::createFromBoolean($context->true()), $scope); } if ($matchedType === null) { return new SpecifiedTypes(); } if ( in_array($methodReflection->getName(), ['matchStrictGroups', 'isMatchStrictGroups', 'matchAllStrictGroups', 'isMatchAllStrictGroups'], true) ) { $matchedType = PregMatchFlags::removeNullFromMatches($matchedType); } $overwrite = false; if ($context->false()) { $overwrite = true; $context = $context->negate(); } // @phpstan-ignore function.alreadyNarrowedType if (method_exists('PHPStan\Analyser\SpecifiedTypes', 'setRootExpr')) { $typeSpecifier = $this->typeSpecifier->create( $matchesArg->value, $matchedType, $context, $scope )->setRootExpr($node); return $overwrite ? $typeSpecifier->setAlwaysOverwriteTypes() : $typeSpecifier; } // @phpstan-ignore arguments.count return $this->typeSpecifier->create( $matchesArg->value, $matchedType, $context, // @phpstan-ignore argument.type $overwrite, $scope, $node ); } }
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