--- /dev/null
+<?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, $noBuiltin = false)
+ {
+ if ($p instanceof \ReflectionParameter) {
+ if (method_exists($p, 'getType')) {
+ $type = $p->getType();
+ } elseif (preg_match('/^(?:[^ ]++ ){4}([a-zA-Z_\x7F-\xFF][^ ]++)/', $p, $type)) {
+ $name = $type = $type[1];
+
+ if ('callable' === $name || 'array' === $name) {
+ return $noBuiltin ? null : $name;
+ }
+ }
+ } else {
+ $type = method_exists($r, 'getReturnType') ? $r->getReturnType() : null;
+ }
+ if (!$type) {
+ return;
+ }
+ if (!is_string($type)) {
+ $name = $type instanceof \ReflectionNamedType ? $type->getName() : $type->__toString();
+
+ if ($type->isBuiltin()) {
+ return $noBuiltin ? null : $name;
+ }
+ }
+ $lcName = strtolower($name);
+ $prefix = $noBuiltin ? '' : '\\';
+
+ if ('self' !== $lcName && 'parent' !== $lcName) {
+ return $prefix.$name;
+ }
+ if (!$r instanceof \ReflectionMethod) {
+ return;
+ }
+ if ('self' === $lcName) {
+ return $prefix.$r->getDeclaringClass()->name;
+ }
+ if ($parent = $r->getDeclaringClass()->getParentClass()) {
+ return $prefix.$parent->name;
+ }
+ }
+
+ private static function export($value)
+ {
+ if (!is_array($value)) {
+ return var_export($value, true);
+ }
+ $code = array();
+ foreach ($value as $k => $v) {
+ $code[] = sprintf('%s => %s', var_export($k, true), self::export($v));
+ }
+
+ return sprintf('array(%s)', implode(', ', $code));
+ }
+}