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- <?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\DependencyInjection\LazyProxy;
- /**
- * @author Nicolas Grekas <p@tchwork.com>
- *
- * @internal
- */
- class ProxyHelper
- {
- /**
- * @return string|null The FQCN or builtin name of the type hint, or null when the type hint references an invalid self|parent context
- */
- public static function getTypeHint(\ReflectionFunctionAbstract $r, \ReflectionParameter $p = null, bool $noBuiltin = false): ?string
- {
- if ($p instanceof \ReflectionParameter) {
- $type = $p->getType();
- } else {
- $type = $r->getReturnType();
- }
- if (!$type) {
- return null;
- }
- $types = [];
- foreach ($type instanceof \ReflectionUnionType ? $type->getTypes() : [$type] as $type) {
- $name = $type instanceof \ReflectionNamedType ? $type->getName() : (string) $type;
- if ($type->isBuiltin()) {
- if (!$noBuiltin) {
- $types[] = $name;
- }
- continue;
- }
- $lcName = strtolower($name);
- $prefix = $noBuiltin ? '' : '\\';
- if ('self' !== $lcName && 'parent' !== $lcName) {
- $types[] = '' !== $prefix ? $prefix.$name : $name;
- continue;
- }
- if (!$r instanceof \ReflectionMethod) {
- continue;
- }
- if ('self' === $lcName) {
- $types[] = $prefix.$r->getDeclaringClass()->name;
- } else {
- $types[] = ($parent = $r->getDeclaringClass()->getParentClass()) ? $prefix.$parent->name : null;
- }
- }
- return $types ? implode('|', $types) : null;
- }
- }
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