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Theodotos Andreou 2018-01-14 13:10:16 +00:00
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sites/all/modules/civicrm/CRM/Utils/AutoClean.php Normal file
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<?php
/*
+--------------------------------------------------------------------+
| CiviCRM version 4.7 |
+--------------------------------------------------------------------+
| Copyright CiviCRM LLC (c) 2004-2017 |
+--------------------------------------------------------------------+
| This file is a part of CiviCRM. |
| |
| CiviCRM is free software; you can copy, modify, and distribute it |
| under the terms of the GNU Affero General Public License |
| Version 3, 19 November 2007 and the CiviCRM Licensing Exception. |
| |
| CiviCRM is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| See the GNU Affero General Public License for more details. |
| |
| You should have received a copy of the GNU Affero General Public |
| License and the CiviCRM Licensing Exception along |
| with this program; if not, contact CiviCRM LLC |
| at info[AT]civicrm[DOT]org. If you have questions about the |
| GNU Affero General Public License or the licensing of CiviCRM, |
| see the CiviCRM license FAQ at http://civicrm.org/licensing |
+--------------------------------------------------------------------+
*/
/**
*
* @package CRM
* @copyright CiviCRM LLC (c) 2004-2017
*/
/**
* Class CRM_Utils_AutoClean
*
* Automatically cleanup state when the object handle is released.
* This is useful for unordered cleanup when a function has many
* different exit scenarios (eg multiple returns, exceptions).
*/
class CRM_Utils_AutoClean {
protected $callback;
protected $args;
/**
* Call a cleanup function when the current context shuts down.
*
* @code
* function doStuff() {
* $ac = CRM_Utils_AutoClean::with(function(){
* MyCleanup::doIt();
* });
* ...
* }
* @endcode
*
* @param mixed $callback
* @return CRM_Utils_AutoClean
*/
public static function with($callback) {
$ac = new CRM_Utils_AutoClean();
$ac->args = func_get_args();
$ac->callback = array_shift($ac->args);
return $ac;
}
/**
* Temporarily swap values using callback functions, and cleanup
* when the current context shuts down.
*
* @code
* function doStuff() {
* $ac = CRM_Utils_AutoClean::swap('My::get', 'My::set', 'tmpValue');
* ...
* }
* @endcode
*
* @param mixed $getter
* Function to lookup current value.
* @param mixed $setter
* Function to set new value.
* @param mixed $tmpValue
* The value to temporarily use.
* @return CRM_Utils_AutoClean
* @see \Civi\Core\Resolver
*/
public static function swap($getter, $setter, $tmpValue) {
$resolver = \Civi\Core\Resolver::singleton();
$origValue = $resolver->call($getter, array());
$ac = new CRM_Utils_AutoClean();
$ac->callback = $setter;
$ac->args = array($origValue);
$resolver->call($setter, array($tmpValue));
return $ac;
}
public function __destruct() {
\Civi\Core\Resolver::singleton()->call($this->callback, $this->args);
}
}