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<?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\ClassLoader;
/**
* A PSR-4 compatible class loader.
*
* See http://www.php-fig.org/psr/psr-4/
*
* @author Alexander M. Turek <me@derrabus.de>
*/
class Psr4ClassLoader
{
/**
* @var array
*/
private $prefixes = array();
/**
* @param string $prefix
* @param string $baseDir
*/
public function addPrefix($prefix, $baseDir)
{
$prefix = trim($prefix, '\\').'\\';
$baseDir = rtrim($baseDir, DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR;
$this->prefixes[] = array($prefix, $baseDir);
}
/**
* @param string $class
*
* @return string|null
*/
public function findFile($class)
{
$class = ltrim($class, '\\');
foreach ($this->prefixes as $current) {
list($currentPrefix, $currentBaseDir) = $current;
if (0 === strpos($class, $currentPrefix)) {
$classWithoutPrefix = substr($class, strlen($currentPrefix));
$file = $currentBaseDir.str_replace('\\', DIRECTORY_SEPARATOR, $classWithoutPrefix).'.php';
if (file_exists($file)) {
return $file;
}
}
}
}
/**
* @param string $class
*
* @return bool
*/
public function loadClass($class)
{
$file = $this->findFile($class);
if (null !== $file) {
require $file;
return true;
}
return false;
}
/**
* Registers this instance as an autoloader.
*
* @param bool $prepend
*/
public function register($prepend = false)
{
spl_autoload_register(array($this, 'loadClass'), true, $prepend);
}
/**
* Removes this instance from the registered autoloaders.
*/
public function unregister()
{
spl_autoload_unregister(array($this, 'loadClass'));
}
}