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- 28.08.2024
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ProxyHelper.php
01 <?php
02
03 /*
04 * This file is part of the Symfony package.
05 *
06 * (c) Fabien Potencier <fabien@symfony.com>
07 *
08 * For the full copyright and license information, please view the LICENSE
09 * file that was distributed with this source code.
10 */
11
12 namespace Symfony\Component\DependencyInjection\LazyProxy;
13
14 /**
15 * @author Nicolas Grekas <p@tchwork.com>
16 *
17 * @internal
18 */
19 class ProxyHelper
20 {
21 /**
22 * @return string|null The FQCN or builtin name of the type hint, or null when the type hint references an invalid self|parent context
23 */
24 public static function getTypeHint(\ReflectionFunctionAbstract $r, \ReflectionParameter $p = null, $noBuiltin = false)
25 {
26 if ($p instanceof \ReflectionParameter) {
27 if (method_exists($p, 'getType')) {
28 $type = $p->getType();
29 } elseif (preg_match('/^(?:[^ ]++ ){4}([a-zA-Z_\x7F-\xFF][^ ]++)/', $p, $type)) {
30 $name = $type = $type[1];
31
32 if ('callable' === $name || 'array' === $name) {
33 return $noBuiltin ? null : $name;
34 }
35 }
36 } else {
37 $type = method_exists($r, 'getReturnType') ? $r->getReturnType() : null;
38 }
39 if (!$type) {
40 return null;
41 }
42
43 $types = [];
44
45 foreach ($type instanceof \ReflectionUnionType ? $type->getTypes() : [$type] as $type) {
46 $name = $type instanceof \ReflectionNamedType ? $type->getName() : (string) $type;
47
48 if (!\is_string($type) && $type->isBuiltin()) {
49 if (!$noBuiltin) {
50 $types[] = $name;
51 }
52 continue;
53 }
54
55 $lcName = strtolower($name);
56 $prefix = $noBuiltin ? '' : '\\';
57
58 if ('self' !== $lcName && 'parent' !== $lcName) {
59 $types[] = '' !== $prefix ? $prefix.$name : $name;
60 continue;
61 }
62 if (!$r instanceof \ReflectionMethod) {
63 continue;
64 }
65 if ('self' === $lcName) {
66 $types[] = $prefix.$r->getDeclaringClass()->name;
67 } else {
68 $types[] = ($parent = $r->getDeclaringClass()->getParentClass()) ? $prefix.$parent->name : null;
69 }
70 }
71
72 return $types ? implode('|', $types) : null;
73 }
74 }
75