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-rw-r--r--vendor/symfony/routing/Symfony/Component/Routing/Loader/AnnotationFileLoader.php122
1 files changed, 122 insertions, 0 deletions
diff --git a/vendor/symfony/routing/Symfony/Component/Routing/Loader/AnnotationFileLoader.php b/vendor/symfony/routing/Symfony/Component/Routing/Loader/AnnotationFileLoader.php
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1<?php
2
3/*
4 * This file is part of the Symfony package.
5 *
6 * (c) Fabien Potencier <fabien@symfony.com>
7 *
8 * For the full copyright and license information, please view the LICENSE
9 * file that was distributed with this source code.
10 */
11
12namespace Symfony\Component\Routing\Loader;
13
14use Symfony\Component\Routing\RouteCollection;
15use Symfony\Component\Config\Resource\FileResource;
16use Symfony\Component\Config\Loader\FileLoader;
17use Symfony\Component\Config\FileLocatorInterface;
18
19/**
20 * AnnotationFileLoader loads routing information from annotations set
21 * on a PHP class and its methods.
22 *
23 * @author Fabien Potencier <fabien@symfony.com>
24 */
25class AnnotationFileLoader extends FileLoader
26{
27 protected $loader;
28
29 /**
30 * Constructor.
31 *
32 * @param FileLocatorInterface $locator A FileLocator instance
33 * @param AnnotationClassLoader $loader An AnnotationClassLoader instance
34 * @param string|array $paths A path or an array of paths where to look for resources
35 *
36 * @throws \RuntimeException
37 */
38 public function __construct(FileLocatorInterface $locator, AnnotationClassLoader $loader, $paths = array())
39 {
40 if (!function_exists('token_get_all')) {
41 throw new \RuntimeException('The Tokenizer extension is required for the routing annotation loaders.');
42 }
43
44 parent::__construct($locator, $paths);
45
46 $this->loader = $loader;
47 }
48
49 /**
50 * Loads from annotations from a file.
51 *
52 * @param string $file A PHP file path
53 * @param string|null $type The resource type
54 *
55 * @return RouteCollection A RouteCollection instance
56 *
57 * @throws \InvalidArgumentException When the file does not exist or its routes cannot be parsed
58 */
59 public function load($file, $type = null)
60 {
61 $path = $this->locator->locate($file);
62
63 $collection = new RouteCollection();
64 if ($class = $this->findClass($path)) {
65 $collection->addResource(new FileResource($path));
66 $collection->addCollection($this->loader->load($class, $type));
67 }
68
69 return $collection;
70 }
71
72 /**
73 * {@inheritdoc}
74 */
75 public function supports($resource, $type = null)
76 {
77 return is_string($resource) && 'php' === pathinfo($resource, PATHINFO_EXTENSION) && (!$type || 'annotation' === $type);
78 }
79
80 /**
81 * Returns the full class name for the first class in the file.
82 *
83 * @param string $file A PHP file path
84 *
85 * @return string|false Full class name if found, false otherwise
86 */
87 protected function findClass($file)
88 {
89 $class = false;
90 $namespace = false;
91 $tokens = token_get_all(file_get_contents($file));
92 for ($i = 0, $count = count($tokens); $i < $count; $i++) {
93 $token = $tokens[$i];
94
95 if (!is_array($token)) {
96 continue;
97 }
98
99 if (true === $class && T_STRING === $token[0]) {
100 return $namespace.'\\'.$token[1];
101 }
102
103 if (true === $namespace && T_STRING === $token[0]) {
104 $namespace = '';
105 do {
106 $namespace .= $token[1];
107 $token = $tokens[++$i];
108 } while ($i < $count && is_array($token) && in_array($token[0], array(T_NS_SEPARATOR, T_STRING)));
109 }
110
111 if (T_CLASS === $token[0]) {
112 $class = true;
113 }
114
115 if (T_NAMESPACE === $token[0]) {
116 $namespace = true;
117 }
118 }
119
120 return false;
121 }
122}