Move into nested docroot
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web/vendor/symfony/class-loader
203
web/vendor/symfony/class-loader/ClassLoader.php
vendored
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203
web/vendor/symfony/class-loader/ClassLoader.php
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\ClassLoader;
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/**
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* ClassLoader implements an PSR-0 class loader.
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*
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* See https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md
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*
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* $loader = new ClassLoader();
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*
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* // register classes with namespaces
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* $loader->addPrefix('Symfony\Component', __DIR__.'/component');
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* $loader->addPrefix('Symfony', __DIR__.'/framework');
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*
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* // activate the autoloader
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* $loader->register();
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*
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* // to enable searching the include path (e.g. for PEAR packages)
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* $loader->setUseIncludePath(true);
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*
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* In this example, if you try to use a class in the Symfony\Component
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* namespace or one of its children (Symfony\Component\Console for instance),
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* the autoloader will first look for the class under the component/
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* directory, and it will then fallback to the framework/ directory if not
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* found before giving up.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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* @author Jordi Boggiano <j.boggiano@seld.be>
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*/
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class ClassLoader
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{
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private $prefixes = array();
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private $fallbackDirs = array();
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private $useIncludePath = false;
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/**
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* Returns prefixes.
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*
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* @return array
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*/
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public function getPrefixes()
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{
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return $this->prefixes;
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}
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/**
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* Returns fallback directories.
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*
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* @return array
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*/
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public function getFallbackDirs()
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{
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return $this->fallbackDirs;
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}
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/**
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* Adds prefixes.
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*
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* @param array $prefixes Prefixes to add
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*/
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public function addPrefixes(array $prefixes)
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{
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foreach ($prefixes as $prefix => $path) {
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$this->addPrefix($prefix, $path);
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}
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}
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/**
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* Registers a set of classes.
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*
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* @param string $prefix The classes prefix
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* @param array|string $paths The location(s) of the classes
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*/
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public function addPrefix($prefix, $paths)
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{
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if (!$prefix) {
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foreach ((array) $paths as $path) {
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$this->fallbackDirs[] = $path;
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}
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return;
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}
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if (isset($this->prefixes[$prefix])) {
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if (is_array($paths)) {
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$this->prefixes[$prefix] = array_unique(array_merge(
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$this->prefixes[$prefix],
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$paths
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));
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} elseif (!in_array($paths, $this->prefixes[$prefix])) {
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$this->prefixes[$prefix][] = $paths;
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}
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} else {
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$this->prefixes[$prefix] = array_unique((array) $paths);
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}
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}
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/**
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* Turns on searching the include for class files.
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*
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* @param bool $useIncludePath
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*/
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public function setUseIncludePath($useIncludePath)
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{
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$this->useIncludePath = (bool) $useIncludePath;
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}
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/**
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* Can be used to check if the autoloader uses the include path to check
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* for classes.
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*
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* @return bool
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*/
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public function getUseIncludePath()
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{
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return $this->useIncludePath;
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}
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/**
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* Registers this instance as an autoloader.
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*
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* @param bool $prepend Whether to prepend the autoloader or not
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*/
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public function register($prepend = false)
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{
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spl_autoload_register(array($this, 'loadClass'), true, $prepend);
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}
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/**
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* Unregisters this instance as an autoloader.
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*/
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public function unregister()
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{
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spl_autoload_unregister(array($this, 'loadClass'));
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}
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/**
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* Loads the given class or interface.
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*
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* @param string $class The name of the class
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*
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* @return bool|null True, if loaded
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*/
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public function loadClass($class)
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{
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if ($file = $this->findFile($class)) {
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require $file;
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return true;
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}
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}
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/**
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* Finds the path to the file where the class is defined.
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*
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* @param string $class The name of the class
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*
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* @return string|null The path, if found
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*/
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public function findFile($class)
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{
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if (false !== $pos = strrpos($class, '\\')) {
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// namespaced class name
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$classPath = str_replace('\\', DIRECTORY_SEPARATOR, substr($class, 0, $pos)).DIRECTORY_SEPARATOR;
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$className = substr($class, $pos + 1);
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} else {
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// PEAR-like class name
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$classPath = null;
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$className = $class;
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}
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$classPath .= str_replace('_', DIRECTORY_SEPARATOR, $className).'.php';
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foreach ($this->prefixes as $prefix => $dirs) {
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if ($class === strstr($class, $prefix)) {
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foreach ($dirs as $dir) {
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if (file_exists($dir.DIRECTORY_SEPARATOR.$classPath)) {
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return $dir.DIRECTORY_SEPARATOR.$classPath;
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}
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}
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}
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}
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foreach ($this->fallbackDirs as $dir) {
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if (file_exists($dir.DIRECTORY_SEPARATOR.$classPath)) {
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return $dir.DIRECTORY_SEPARATOR.$classPath;
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}
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}
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if ($this->useIncludePath && $file = stream_resolve_include_path($classPath)) {
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return $file;
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}
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}
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}
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