Current File : //opt/alt/php54/usr/share/pear/PHP/Token/Stream/CachingFactory.php
<?php
/**
* php-token-stream
*
* Copyright (c) 2009-2013, Sebastian Bergmann <sebastian@phpunit.de>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of Sebastian Bergmann nor the names of his
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* @package PHP_TokenStream
* @author Sebastian Bergmann <sebastian@phpunit.de>
* @copyright 2009-2013 Sebastian Bergmann <sebastian@phpunit.de>
* @license http://www.opensource.org/licenses/BSD-3-Clause The BSD 3-Clause License
* @since File available since Release 1.0.0
*/
/**
* A caching factory for token stream objects.
*
* @author Sebastian Bergmann <sebastian@phpunit.de>
* @copyright 2009-2013 Sebastian Bergmann <sebastian@phpunit.de>
* @license http://www.opensource.org/licenses/BSD-3-Clause The BSD 3-Clause License
* @version Release: 1.2.2
* @link http://github.com/sebastianbergmann/php-token-stream/tree
* @since Class available since Release 1.0.0
*/
class PHP_Token_Stream_CachingFactory
{
/**
* @var array
*/
protected static $cache = array();
/**
* @param string $filename
* @return PHP_Token_Stream
*/
public static function get($filename)
{
if (!isset(self::$cache[$filename])) {
self::$cache[$filename] = new PHP_Token_Stream($filename);
}
return self::$cache[$filename];
}
/**
* @param string $filename
*/
public static function clear($filename = NULL)
{
if (is_string($filename)) {
unset(self::$cache[$filename]);
} else {
self::$cache = array();
}
}
}
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