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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;
}
if (!\is_string($type)) {
$name = $type->getName();
if ($type->isBuiltin()) {
return $noBuiltin ? null : $name;
}
}
$lcName = strtolower($name);
$prefix = $noBuiltin ? '' : '\\';
if ('self' !== $lcName && 'parent' !== $lcName) {
return $prefix.$name;
}
if (!$r instanceof \ReflectionMethod) {
return null;
}
if ('self' === $lcName) {
return $prefix.$r->getDeclaringClass()->name;
}
return ($parent = $r->getDeclaringClass()->getParentClass()) ? $prefix.$parent->name : null;
}
}
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