includes/DeprecatedGlobal.php

   1 <?php
   2 /**
   3  * Delayed loading of deprecated global objects.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  */
  22
  23 /**
  24  * Class to allow throwing wfDeprecated warnings
  25  * when people use globals that we do not want them to.
  26  */
  27 class DeprecatedGlobal extends StubObject {
  28         protected $version;
  29
  30         /**
  31          * @param string $name Global name
  32          * @param callable|string $callback Factory function or class name to construct
  33          * @param bool|string $version Version global was deprecated in
  34          */
  35         function __construct( $name, $callback, $version = false ) {
  36                 parent::__construct( $name, $callback );
  37                 $this->version = $version;
  38         }
  39
  40         // @codingStandardsIgnoreStart
  41         // PSR2.Methods.MethodDeclaration.Underscore
  42         // PSR2.Classes.PropertyDeclaration.ScopeMissing
  43         function _newObject() {
  44                 /* Put the caller offset for wfDeprecated as 6, as
  45                  * that gives the function that uses this object, since:
  46                  * 1 = this function ( _newObject )
  47                  * 2 = StubObject::_unstub
  48                  * 3 = StubObject::_call
  49                  * 4 = StubObject::__call
  50                  * 5 = DeprecatedGlobal::<method of global called>
  51                  * 6 = Actual function using the global.
  52                  * Of course its theoretically possible to have other call
  53                  * sequences for this method, but that seems to be
  54                  * rather unlikely.
  55                  */
  56                 wfDeprecated( '$' . $this->global, $this->version, false, 6 );
  57                 return parent::_newObject();
  58         }
  59         // @codingStandardsIgnoreEnd
  60 }