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Internal	--	ren
CHANGELOG.md	0.93KB	edt ren
Hydrator.php	2.934KB	edt ren
Instantiator.php	2.336KB	edt ren
LICENSE	1.043KB	edt ren
LazyGhostTrait.php	13.376KB	edt ren
LazyObjectInterface.php	0.834KB	edt ren
LazyProxyTrait.php	13.005KB	edt ren
ProxyHelper.php	31.579KB	edt ren
README.md	3.893KB	edt ren
VarExporter.php	3.555KB	edt ren
composer.json	1.007KB	edt ren

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\VarExporter;

use Symfony\Component\VarExporter\Exception\LogicException;
use Symfony\Component\VarExporter\Internal\Hydrator;
use Symfony\Component\VarExporter\Internal\LazyDecoratorTrait;
use Symfony\Component\VarExporter\Internal\LazyObjectRegistry;

/**
 * @author Nicolas Grekas <p@tchwork.com>
 */
final class ProxyHelper
{
    /**
     * Helps generate lazy-loading ghost objects.
     *
     * @deprecated since Symfony 7.3, use native lazy objects instead
     *
     * @throws LogicException When the class is incompatible with ghost objects
     */
    public static function generateLazyGhost(\ReflectionClass $class): string
    {
        if (\PHP_VERSION_ID >= 80400) {
            trigger_deprecation('symfony/var-exporter', '7.3', 'Using ProxyHelper::generateLazyGhost() is deprecated, use native lazy objects instead.');
        }
        if (\PHP_VERSION_ID < 80300 && $class->isReadOnly()) {
            throw new LogicException(\sprintf('Cannot generate lazy ghost with PHP < 8.3: class "%s" is readonly.', $class->name));
        }
        if ($class->isFinal()) {
            throw new LogicException(\sprintf('Cannot generate lazy ghost: class "%s" is final.', $class->name));
        }
        if ($class->isInterface() || $class->isAbstract() || $class->isTrait()) {
            throw new LogicException(\sprintf('Cannot generate lazy ghost: "%s" is not a concrete class.', $class->name));
        }
        if (\stdClass::class !== $class->name && $class->isInternal()) {
            throw new LogicException(\sprintf('Cannot generate lazy ghost: class "%s" is internal.', $class->name));
        }
        if ($class->hasMethod('__get') && 'mixed' !== (self::exportType($class->getMethod('__get')) ?? 'mixed')) {
            throw new LogicException(\sprintf('Cannot generate lazy ghost: return type of method "%s::__get()" should be "mixed".', $class->name));
        }

static $traitMethods;
        $traitMethods ??= (new \ReflectionClass(LazyGhostTrait::class))->getMethods();

foreach ($traitMethods as $method) {
            if ($class->hasMethod($method->name) && $class->getMethod($method->name)->isFinal()) {
                throw new LogicException(\sprintf('Cannot generate lazy ghost: method "%s::%s()" is final.', $class->name, $method->name));
            }
        }

$parent = $class;
        while ($parent = $parent->getParentClass()) {
            if (\stdClass::class !== $parent->name && $parent->isInternal()) {
                throw new LogicException(\sprintf('Cannot generate lazy ghost: class "%s" extends "%s" which is internal.', $class->name, $parent->name));
            }
        }

$hooks = '';
        $propertyScopes = Hydrator::$propertyScopes[$class->name] ??= Hydrator::getPropertyScopes($class->name);
        foreach ($propertyScopes as $key => [$scope, $name, , $access]) {
            $propertyScopes[$k = "\0$scope\0$name"] ?? $propertyScopes[$k = "\0*\0$name"] ?? $k = $name;
            $flags = $access >> 2;

if ($k !== $key || !($access & Hydrator::PROPERTY_HAS_HOOKS) || $flags & \ReflectionProperty::IS_VIRTUAL) {
                continue;
            }

if ($flags & (\ReflectionProperty::IS_FINAL | \ReflectionProperty::IS_PRIVATE)) {
                throw new LogicException(\sprintf('Cannot generate lazy ghost: property "%s::$%s" is final or private(set).', $class->name, $name));
            }

$p = $propertyScopes[$k][4] ?? Hydrator::$propertyScopes[$class->name][$k][4] = new \ReflectionProperty($scope, $name);

$type = self::exportType($p);
            $hooks .= "\n    "
                .($p->isProtected() ? 'protected' : 'public')
                .($p->isProtectedSet() ? ' protected(set)' : '')
                ." {$type} \${$name}"
                .($p->hasDefaultValue() ? ' = '.VarExporter::export($p->getDefaultValue()) : '')
                ." {\n";

foreach ($p->getHooks() as $hook => $method) {
                if ('get' === $hook) {
                    $ref = ($method->returnsReference() ? '&' : '');
                    $hooks .= "        {$ref}get { \$this->initializeLazyObject(); return parent::\${$name}::get(); }\n";
                } elseif ('set' === $hook) {
                    $parameters = self::exportParameters($method, true);
                    $arg = '$'.$method->getParameters()[0]->name;
                    $hooks .= "        set({$parameters}) { \$this->initializeLazyObject(); parent::\${$name}::set({$arg}); }\n";
                } else {
                    throw new LogicException(\sprintf('Cannot generate lazy ghost: hook "%s::%s()" is not supported.', $class->name, $method->name));
                }
            }

$hooks .= "    }\n";
        }

$propertyScopes = self::exportPropertyScopes($class->name, $propertyScopes);

return <<<EOPHP
             extends \\{$class->name} implements \Symfony\Component\VarExporter\LazyObjectInterface
            {
                use \Symfony\Component\VarExporter\LazyGhostTrait;

private const LAZY_OBJECT_PROPERTY_SCOPES = {$propertyScopes};
            {$hooks}}

// Help opcache.preload discover always-needed symbols
            class_exists(\Symfony\Component\VarExporter\Internal\Hydrator::class);
            class_exists(\Symfony\Component\VarExporter\Internal\LazyObjectRegistry::class);
            class_exists(\Symfony\Component\VarExporter\Internal\LazyObjectState::class);

EOPHP;
    }

/**
     * Helps generate lazy-loading decorators.
     *
     * @param \ReflectionClass[] $interfaces
     *
     * @throws LogicException When the class is incompatible with virtual proxies
     */
    public static function generateLazyProxy(?\ReflectionClass $class, array $interfaces = []): string
    {
        if (!class_exists($class?->name ?? \stdClass::class, false)) {
            throw new LogicException(\sprintf('Cannot generate lazy proxy: "%s" is not a class.', $class->name));
        }
        if ($class?->isFinal()) {
            throw new LogicException(\sprintf('Cannot generate lazy proxy: class "%s" is final.', $class->name));
        }
        if (\PHP_VERSION_ID < 80400) {
            return self::generateLegacyLazyProxy($class, $interfaces);
        }

if ($class && !$class->isAbstract()) {
            $parent = $class;
            do {
                $extendsInternalClass = $parent->isInternal();
            } while (!$extendsInternalClass && $parent = $parent->getParentClass());

if (!$extendsInternalClass) {
                trigger_deprecation('symfony/var-exporter', '7.3', 'Generating lazy proxy for class "%s" is deprecated; leverage native lazy objects instead.', $class->name);
                // throw new LogicException(\sprintf('Cannot generate lazy proxy: leverage native lazy objects instead for class "%s".', $class->name));
            }
        }

$propertyScopes = $class ? Hydrator::$propertyScopes[$class->name] ??= Hydrator::getPropertyScopes($class->name) : [];
        $abstractProperties = [];
        $hookedProperties = [];
        foreach ($propertyScopes as $key => [$scope, $name, , $access]) {
            $propertyScopes[$k = "\0$scope\0$name"] ?? $propertyScopes[$k = "\0*\0$name"] ?? $k = $name;
            $flags = $access >> 2;

if ($k !== $key || $flags & \ReflectionProperty::IS_PRIVATE) {
                continue;
            }

if ($flags & \ReflectionProperty::IS_ABSTRACT) {
                $abstractProperties[$name] = $propertyScopes[$k][4] ?? Hydrator::$propertyScopes[$class->name][$k][4] = new \ReflectionProperty($scope, $name);
                continue;
            }
            $abstractProperties[$name] = false;

if (!($access & Hydrator::PROPERTY_HAS_HOOKS)) {
                continue;
            }

if ($flags & \ReflectionProperty::IS_FINAL) {
                throw new LogicException(\sprintf('Cannot generate lazy proxy: property "%s::$%s" is final.', $class->name, $name));
            }

$p = $propertyScopes[$k][4] ?? Hydrator::$propertyScopes[$class->name][$k][4] = new \ReflectionProperty($scope, $name);
            $hookedProperties[$name] = [$p, $p->getHooks()];
        }

$methodReflectors = [$class?->getMethods(\ReflectionMethod::IS_PUBLIC | \ReflectionMethod::IS_PROTECTED) ?? []];
        foreach ($interfaces as $interface) {
            if (!$interface->isInterface()) {
                throw new LogicException(\sprintf('Cannot generate lazy proxy: "%s" is not an interface.', $interface->name));
            }
            $methodReflectors[] = $interface->getMethods();

foreach ($interface->getProperties() as $p) {
                $abstractProperties[$p->name] ??= $p;
                $hookedProperties[$p->name] ??= [$p, []];
                $hookedProperties[$p->name][1] += $p->getHooks();
            }
        }

$hooks = '';

foreach (array_filter($abstractProperties) as $name => $p) {
            $type = self::exportType($p);
            $hooks .= "\n    "
                .($p->isProtected() ? 'protected' : 'public')
                .($p->isProtectedSet() ? ' protected(set)' : '')
                ." {$type} \${$name};\n";
        }

foreach ($hookedProperties as $name => [$p, $methods]) {
            if ($abstractProperties[$p->name] ?? false) {
                continue;
            }
            $type = self::exportType($p);
            $hooks .= "\n    "
                .($p->isProtected() ? 'protected' : 'public')
                .($p->isProtectedSet() ? ' protected(set)' : '')
                ." {$type} \${$name} {\n";

foreach ($methods as $hook => $method) {
                if ('get' === $hook) {
                    $ref = ($method->returnsReference() ? '&' : '');
                    $hooks .= <<<EOPHP
                                {$ref}get {
                                    return \$this->lazyObjectState->realInstance->{$p->name};
                                }

EOPHP;
                } elseif ('set' === $hook) {
                    $parameters = self::exportParameters($method, true);
                    $arg = '$'.$method->getParameters()[0]->name;
                    $hooks .= <<<EOPHP
                                set({$parameters}) {
                                    \$this->lazyObjectState->realInstance->{$p->name} = {$arg};
                                }

EOPHP;
                } else {
                    throw new LogicException(\sprintf('Cannot generate lazy proxy: hook "%s::%s()" is not supported.', $class->name, $method->name));
                }
            }

$hooks .= "    }\n";
        }

$methods = [];
        $methodReflectors = array_merge(...$methodReflectors);

foreach ($methodReflectors as $method) {
            if ('__get' !== strtolower($method->name) || 'mixed' === ($type = self::exportType($method) ?? 'mixed')) {
                continue;
            }
            $trait = new \ReflectionMethod(LazyDecoratorTrait::class, '__get');
            $body = \array_slice(file($trait->getFileName()), $trait->getStartLine() - 1, $trait->getEndLine() - $trait->getStartLine());
            $body[0] = str_replace('): mixed', '): '.$type, $body[0]);
            $methods['__get'] = strtr(implode('', $body).'    }', [
                'Hydrator' => '\\'.Hydrator::class,
                'Registry' => '\\'.LazyObjectRegistry::class,
            ]);
            break;
        }

foreach ($methodReflectors as $method) {
            if (($method->isStatic() && !$method->isAbstract()) || isset($methods[$lcName = strtolower($method->name)])) {
                continue;
            }
            if ($method->isFinal()) {
                throw new LogicException(\sprintf('Cannot generate lazy proxy: method "%s::%s()" is final.', $class->name, $method->name));
            }
            if (method_exists(LazyDecoratorTrait::class, $method->name)) {
                continue;
            }

$signature = self::exportSignature($method, true, $args);

if ($method->isStatic()) {
                $body = "        throw new \BadMethodCallException('Cannot forward abstract method \"{$method->class}::{$method->name}()\".');";
            } elseif (str_ends_with($signature, '): never') || str_ends_with($signature, '): void')) {
                $body = <<<EOPHP
                            \$this->lazyObjectState->realInstance->{$method->name}({$args});
                    EOPHP;
            } else {
                $mayReturnThis = false;
                foreach (preg_split('/[()|&]++/', self::exportType($method) ?? 'static') as $type) {
                    if (\in_array($type = ltrim($type, '?'), ['static', 'object'], true)) {
                        $mayReturnThis = true;
                        break;
                    }
                    foreach ([$class, ...$interfaces] as $r) {
                        if ($r && is_a($r->name, $type, true)) {
                            $mayReturnThis = true;
                            break 2;
                        }
                    }
                }

if ($method->returnsReference() || !$mayReturnThis) {
                    $body = <<<EOPHP
                                return \$this->lazyObjectState->realInstance->{$method->name}({$args});
                        EOPHP;
                } else {
                    $body = <<<EOPHP
                                \${0} = \$this->lazyObjectState->realInstance;
                                \${1} = \${0}->{$method->name}({$args});

return match (true) {
                                    \${1} === \${0} => \$this,
                                    !\${1} instanceof \${0} || !\${0} instanceof \${1} => \${1},
                                    null !== \$this->lazyObjectState->cloneInstance =& \${1} => clone \$this,
                                };
                        EOPHP;
                }
            }
            $methods[$lcName] = "    {$signature}\n    {\n{$body}\n    }";
        }

$types = $interfaces = array_unique(array_column($interfaces, 'name'));
        $interfaces[] = LazyObjectInterface::class;
        $interfaces = implode(', \\', $interfaces);
        $parent = $class ? ' extends \\'.$class->name : '';
        array_unshift($types, $class ? 'parent' : '');
        $type = ltrim(implode('&\\', $types), '&');

if (!$class) {
            $trait = new \ReflectionMethod(LazyDecoratorTrait::class, 'initializeLazyObject');
            $body = \array_slice(file($trait->getFileName()), $trait->getStartLine() - 1, $trait->getEndLine() - $trait->getStartLine());
            $body[0] = str_replace('): parent', '): '.$type, $body[0]);
            $methods = ['initializeLazyObject' => implode('', $body).'    }'] + $methods;
        }
        $body = $methods ? "\n".implode("\n\n", $methods)."\n" : '';
        $propertyScopes = $class ? self::exportPropertyScopes($class->name, $propertyScopes) : '[]';
        $lazyProxyTraitStatement = [];

if (
            $class?->hasMethod('__unserialize')
            && !$class->getMethod('__unserialize')->getParameters()[0]->getType()
        ) {
            // fix contravariance type problem when $class declares a `__unserialize()` method without typehint.
            $lazyProxyTraitStatement[] = '__unserialize as private __doUnserialize;';

$body .= <<<EOPHP

public function __unserialize(\$data): void
                    {
                        \$this->__doUnserialize(\$data);
                    }

EOPHP;
        }

if ($lazyProxyTraitStatement) {
            $lazyProxyTraitStatement = implode("\n        ", $lazyProxyTraitStatement);
            $lazyProxyTraitStatement = <<<EOPHP
                use \Symfony\Component\VarExporter\Internal\LazyDecoratorTrait {
                        {$lazyProxyTraitStatement}
                    }
                EOPHP;
        } else {
            $lazyProxyTraitStatement = <<<EOPHP
                use \Symfony\Component\VarExporter\Internal\LazyDecoratorTrait;
                EOPHP;
        }

return <<<EOPHP
            {$parent} implements \\{$interfaces}
            {
                {$lazyProxyTraitStatement}

private const LAZY_OBJECT_PROPERTY_SCOPES = {$propertyScopes};
            {$hooks}{$body}}

EOPHP;
    }

private static function generateLegacyLazyProxy(?\ReflectionClass $class, array $interfaces): string
    {
        if (\PHP_VERSION_ID < 80300 && $class?->isReadOnly()) {
            throw new LogicException(\sprintf('Cannot generate lazy proxy with PHP < 8.3: class "%s" is readonly.', $class->name));
        }

$propertyScopes = $class ? Hydrator::$propertyScopes[$class->name] ??= Hydrator::getPropertyScopes($class->name) : [];
        $methodReflectors = [$class?->getMethods(\ReflectionMethod::IS_PUBLIC | \ReflectionMethod::IS_PROTECTED) ?? []];
        foreach ($interfaces as $interface) {
            if (!$interface->isInterface()) {
                throw new LogicException(\sprintf('Cannot generate lazy proxy: "%s" is not an interface.', $interface->name));
            }
            $methodReflectors[] = $interface->getMethods();
        }

$extendsInternalClass = false;
        if ($parent = $class) {
            do {
                $extendsInternalClass = \stdClass::class !== $parent->name && $parent->isInternal();
            } while (!$extendsInternalClass && $parent = $parent->getParentClass());
        }
        $methodsHaveToBeProxied = $extendsInternalClass;
        $methods = [];
        $methodReflectors = array_merge(...$methodReflectors);

foreach ($methodReflectors as $method) {
            if ('__get' !== strtolower($method->name) || 'mixed' === ($type = self::exportType($method) ?? 'mixed')) {
                continue;
            }
            $methodsHaveToBeProxied = true;
            $trait = new \ReflectionMethod(LazyProxyTrait::class, '__get');
            $body = \array_slice(file($trait->getFileName()), $trait->getStartLine() - 1, $trait->getEndLine() - $trait->getStartLine());
            $body[0] = str_replace('): mixed', '): '.$type, $body[0]);
            $methods['__get'] = strtr(implode('', $body).'    }', [
                'Hydrator' => '\\'.Hydrator::class,
                'Registry' => '\\'.LazyObjectRegistry::class,
            ]);
            break;
        }

foreach ($methodReflectors as $method) {
            if (($method->isStatic() && !$method->isAbstract()) || isset($methods[$lcName = strtolower($method->name)])) {
                continue;
            }
            if ($method->isFinal()) {
                if ($extendsInternalClass || $methodsHaveToBeProxied || method_exists(LazyProxyTrait::class, $method->name)) {
                    throw new LogicException(\sprintf('Cannot generate lazy proxy: method "%s::%s()" is final.', $class->name, $method->name));
                }
                continue;
            }
            if (method_exists(LazyProxyTrait::class, $method->name) || ($method->isProtected() && !$method->isAbstract())) {
                continue;
            }

$signature = self::exportSignature($method, true, $args);
            $parentCall = $method->isAbstract() ? "throw new \BadMethodCallException('Cannot forward abstract method \"{$method->class}::{$method->name}()\".')" : "parent::{$method->name}({$args})";

if ($method->isStatic()) {
                $body = "        $parentCall;";
            } elseif (str_ends_with($signature, '): never') || str_ends_with($signature, '): void')) {
                $body = <<<EOPHP
                            if (isset(\$this->lazyObjectState)) {
                                (\$this->lazyObjectState->realInstance ??= (\$this->lazyObjectState->initializer)())->{$method->name}({$args});
                            } else {
                                {$parentCall};
                            }
                    EOPHP;
            } else {
                if (!$methodsHaveToBeProxied && !$method->isAbstract()) {
                    // Skip proxying methods that might return $this
                    foreach (preg_split('/[()|&]++/', self::exportType($method) ?? 'static') as $type) {
                        if (\in_array($type = ltrim($type, '?'), ['static', 'object'], true)) {
                            continue 2;
                        }
                        foreach ([$class, ...$interfaces] as $r) {
                            if ($r && is_a($r->name, $type, true)) {
                                continue 3;
                            }
                        }
                    }
                }

$body = <<<EOPHP
                            if (isset(\$this->lazyObjectState)) {
                                return (\$this->lazyObjectState->realInstance ??= (\$this->lazyObjectState->initializer)())->{$method->name}({$args});
                            }

return {$parentCall};
                    EOPHP;
            }
            $methods[$lcName] = "    {$signature}\n    {\n{$body}\n    }";
        }

if (!$class) {
            $trait = new \ReflectionMethod(LazyProxyTrait::class, 'initializeLazyObject');
            $body = \array_slice(file($trait->getFileName()), $trait->getStartLine() - 1, $trait->getEndLine() - $trait->getStartLine());
            $body[0] = str_replace('): parent', '): '.$type, $body[0]);
            $methods = ['initializeLazyObject' => implode('', $body).'    }'] + $methods;
        }
        $body = $methods ? "\n".implode("\n\n", $methods)."\n" : '';
        $propertyScopes = $class ? self::exportPropertyScopes($class->name, $propertyScopes) : '[]';

$body .= <<<EOPHP

public function __unserialize(\$data): void
                    {
                        \$this->__doUnserialize(\$data);
                    }

EOPHP;
        } else {
            $lazyProxyTraitStatement = <<<EOPHP
                use \Symfony\Component\VarExporter\LazyProxyTrait;
                EOPHP;
        }

return <<<EOPHP
            {$parent} implements \\{$interfaces}
            {
                {$lazyProxyTraitStatement}

private const LAZY_OBJECT_PROPERTY_SCOPES = {$propertyScopes};
            {$body}}

EOPHP;
    }

public static function exportParameters(\ReflectionFunctionAbstract $function, bool $withParameterTypes = true, ?string &$args = null): string
    {
        $byRefIndex = 0;
        $args = '';
        $param = null;
        $parameters = [];
        $namespace = $function instanceof \ReflectionMethod ? $function->class : $function->getNamespaceName().'\\';
        $namespace = substr($namespace, 0, strrpos($namespace, '\\') ?: 0);
        foreach ($function->getParameters() as $param) {
            $parameters[] = ($param->getAttributes(\SensitiveParameter::class) ? '#[\SensitiveParameter] ' : '')
                .($withParameterTypes && $param->hasType() ? self::exportType($param).' ' : '')
                .($param->isPassedByReference() ? '&' : '')
                .($param->isVariadic() ? '...' : '').'$'.$param->name
                .($param->isOptional() && !$param->isVariadic() ? ' = '.self::exportDefault($param, $namespace) : '');
            if ($param->isPassedByReference()) {
                $byRefIndex = 1 + $param->getPosition();
            }
            $args .= ($param->isVariadic() ? '...$' : '$').$param->name.', ';
        }

if (!$param || !$byRefIndex) {
            $args = '...\func_get_args()';
        } elseif ($param->isVariadic()) {
            $args = substr($args, 0, -2);
        } else {
            $args = explode(', ', $args, 1 + $byRefIndex);
            $args[$byRefIndex] = \sprintf('...\array_slice(\func_get_args(), %d)', $byRefIndex);
            $args = implode(', ', $args);
        }

return implode(', ', $parameters);
    }

public static function exportSignature(\ReflectionFunctionAbstract $function, bool $withParameterTypes = true, ?string &$args = null): string
    {
        $parameters = self::exportParameters($function, $withParameterTypes, $args);

$signature = 'function '.($function->returnsReference() ? '&' : '')
            .($function->isClosure() ? '' : $function->name).'('.$parameters.')';

if ($function instanceof \ReflectionMethod) {
            $signature = ($function->isPublic() ? 'public ' : ($function->isProtected() ? 'protected ' : 'private '))
                .($function->isStatic() ? 'static ' : '').$signature;
        }
        if ($function->hasReturnType()) {
            $signature .= ': '.self::exportType($function);
        }

static $getPrototype;
        $getPrototype ??= (new \ReflectionMethod(\ReflectionMethod::class, 'getPrototype'))->invoke(...);

while ($function) {
            if ($function->hasTentativeReturnType()) {
                return '#[\ReturnTypeWillChange] '.$signature;
            }

try {
                $function = $function instanceof \ReflectionMethod && $function->isAbstract() ? false : $getPrototype($function);
            } catch (\ReflectionException) {
                break;
            }
        }

return $signature;
    }

public static function exportType(\ReflectionFunctionAbstract|\ReflectionProperty|\ReflectionParameter $owner, bool $noBuiltin = false, ?\ReflectionType $type = null): ?string
    {
        if (!$type ??= $owner instanceof \ReflectionFunctionAbstract ? $owner->getReturnType() : $owner->getType()) {
            return null;
        }
        $class = null;
        $types = [];
        if ($type instanceof \ReflectionUnionType) {
            $reflectionTypes = $type->getTypes();
            $glue = '|';
        } elseif ($type instanceof \ReflectionIntersectionType) {
            $reflectionTypes = $type->getTypes();
            $glue = '&';
        } else {
            $reflectionTypes = [$type];
            $glue = null;
        }

foreach ($reflectionTypes as $type) {
            if ($type instanceof \ReflectionIntersectionType) {
                if ('' !== $name = '('.self::exportType($owner, $noBuiltin, $type).')') {
                    $types[] = $name;
                }
                continue;
            }
            $name = $type->getName();

if ($noBuiltin && $type->isBuiltin()) {
                continue;
            }
            if (\in_array($name, ['parent', 'self'], true) && $class ??= $owner->getDeclaringClass()) {
                $name = 'parent' === $name ? ($class->getParentClass() ?: null)?->name ?? 'parent' : $class->name;
            }

$types[] = ($noBuiltin || $type->isBuiltin() || 'static' === $name ? '' : '\\').$name;
        }

if (!$types) {
            return '';
        }
        if (null === $glue) {
            $defaultNull = $owner instanceof \ReflectionParameter && 'NULL' === rtrim(substr(explode('$'.$owner->name.' = ', (string) $owner, 2)[1] ?? '', 0, -2));

return (!$noBuiltin && ($type->allowsNull() || $defaultNull) && !\in_array($name, ['mixed', 'null'], true) ? '?' : '').$types[0];
        }
        sort($types);

return implode($glue, $types);
    }

private static function exportPropertyScopes(string $parent, array $propertyScopes): string
    {
        uksort($propertyScopes, 'strnatcmp');
        foreach ($propertyScopes as $k => $v) {
            unset($propertyScopes[$k][4]);
        }
        $propertyScopes = VarExporter::export($propertyScopes);
        $propertyScopes = str_replace(VarExporter::export($parent), 'parent::class', $propertyScopes);
        $propertyScopes = preg_replace("/(?|(,)\n( )       |\n        |,\n    (\]))/", '$1$2', $propertyScopes);

return str_replace("\n", "\n    ", $propertyScopes);
    }

private static function exportDefault(\ReflectionParameter $param, $namespace): string
    {
        $default = rtrim(substr(explode('$'.$param->name.' = ', (string) $param, 2)[1] ?? '', 0, -2));

if (\in_array($default, ['<default>', 'NULL'], true)) {
            return 'null';
        }
        if (str_ends_with($default, "...'") && preg_match("/^'(?:[^'\\\\]*+(?:\\\\.)*+)*+'$/", $default)) {
            return VarExporter::export($param->getDefaultValue());
        }

$regexp = "/(\"(?:[^\"\\\\]*+(?:\\\\.)*+)*+\"|'(?:[^'\\\\]*+(?:\\\\.)*+)*+')/";
        $parts = preg_split($regexp, $default, -1, \PREG_SPLIT_DELIM_CAPTURE | \PREG_SPLIT_NO_EMPTY);

$regexp = '/([\[\( ]|^)([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+(?:\\\\[a-zA-Z0-9_\x7f-\xff]++)*+)(\(?)(?!: )/';
        $callback = (false !== strpbrk($default, "\\:('") && $class = $param->getDeclaringClass())
            ? fn ($m) => $m[1].match ($m[2]) {
                'new', 'false', 'true', 'null' => $m[2],
                'NULL' => 'null',
                'self' => '\\'.$class->name,
                'namespace\\parent',
                'parent' => ($parent = $class->getParentClass()) ? '\\'.$parent->name : 'parent',
                default => self::exportSymbol($m[2], '(' !== $m[3], $namespace),
            }.$m[3]
            : fn ($m) => $m[1].match ($m[2]) {
                'new', 'false', 'true', 'null', 'self', 'parent' => $m[2],
                'NULL' => 'null',
                default => self::exportSymbol($m[2], '(' !== $m[3], $namespace),
            }.$m[3];

return implode('', array_map(fn ($part) => match ($part[0]) {
            '"' => $part, // for internal classes only
            "'" => false !== strpbrk($part, "\\\0\r\n") ? '"'.substr(str_replace(['$', "\0", "\r", "\n"], ['\$', '\0', '\r', '\n'], $part), 1, -1).'"' : $part,
            default => preg_replace_callback($regexp, $callback, $part),
        }, $parts));
    }

private static function exportSymbol(string $symbol, bool $mightBeRootConst, string $namespace): string
    {
        if (!$mightBeRootConst
            || false === ($ns = strrpos($symbol, '\\'))
            || substr($symbol, 0, $ns) !== $namespace
            || \defined($symbol)
            || !\defined(substr($symbol, $ns + 1))
        ) {
            return '\\'.$symbol;
        }

return '\\'.substr($symbol, $ns + 1);
    }
}

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