Chris@14: <?php
Chris@14: 
Chris@14: /*
Chris@14:  * This file is part of the Symfony package.
Chris@14:  *
Chris@14:  * (c) Fabien Potencier <fabien@symfony.com>
Chris@14:  *
Chris@14:  * For the full copyright and license information, please view the LICENSE
Chris@14:  * file that was distributed with this source code.
Chris@14:  */
Chris@14: 
Chris@14: namespace Symfony\Component\DependencyInjection\LazyProxy;
Chris@14: 
Chris@14: /**
Chris@14:  * @author Nicolas Grekas <p@tchwork.com>
Chris@14:  *
Chris@14:  * @internal
Chris@14:  */
Chris@14: class ProxyHelper
Chris@14: {
Chris@14:     /**
Chris@14:      * @return string|null The FQCN or builtin name of the type hint, or null when the type hint references an invalid self|parent context
Chris@14:      */
Chris@14:     public static function getTypeHint(\ReflectionFunctionAbstract $r, \ReflectionParameter $p = null, $noBuiltin = false)
Chris@14:     {
Chris@14:         if ($p instanceof \ReflectionParameter) {
Chris@14:             if (method_exists($p, 'getType')) {
Chris@14:                 $type = $p->getType();
Chris@14:             } elseif (preg_match('/^(?:[^ ]++ ){4}([a-zA-Z_\x7F-\xFF][^ ]++)/', $p, $type)) {
Chris@14:                 $name = $type = $type[1];
Chris@14: 
Chris@14:                 if ('callable' === $name || 'array' === $name) {
Chris@14:                     return $noBuiltin ? null : $name;
Chris@14:                 }
Chris@14:             }
Chris@14:         } else {
Chris@14:             $type = method_exists($r, 'getReturnType') ? $r->getReturnType() : null;
Chris@14:         }
Chris@14:         if (!$type) {
Chris@14:             return;
Chris@14:         }
Chris@17:         if (!\is_string($type)) {
Chris@14:             $name = $type instanceof \ReflectionNamedType ? $type->getName() : $type->__toString();
Chris@14: 
Chris@14:             if ($type->isBuiltin()) {
Chris@14:                 return $noBuiltin ? null : $name;
Chris@14:             }
Chris@14:         }
Chris@14:         $lcName = strtolower($name);
Chris@14:         $prefix = $noBuiltin ? '' : '\\';
Chris@14: 
Chris@14:         if ('self' !== $lcName && 'parent' !== $lcName) {
Chris@14:             return $prefix.$name;
Chris@14:         }
Chris@14:         if (!$r instanceof \ReflectionMethod) {
Chris@14:             return;
Chris@14:         }
Chris@14:         if ('self' === $lcName) {
Chris@14:             return $prefix.$r->getDeclaringClass()->name;
Chris@14:         }
Chris@14:         if ($parent = $r->getDeclaringClass()->getParentClass()) {
Chris@14:             return $prefix.$parent->name;
Chris@14:         }
Chris@14:     }
Chris@14: }