MediaWiki/includes/registration/ExtensionDependencyError.php

<?php
/**
 * Copyright (C) 2018 Kunal Mehta <legoktm@member.fsf.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 */

/**
 * @since 1.31
 */
class ExtensionDependencyError extends Exception {

	/**
	 * @var string[]
	 */
	public $missingExtensions = [];

	/**
	 * @var string[]
	 */
	public $missingSkins = [];

	/**
	 * @var string[]
	 */
	public $incompatibleExtensions = [];

	/**
	 * @var string[]
	 */
	public $incompatibleSkins = [];

	/**
	 * @var bool
	 */
	public $incompatibleCore = false;

	/**
	 * @param array $errors Each error has a 'msg' and 'type' key at minimum
	 */
	public function __construct( array $errors ) {
		$msg = '';
		foreach ( $errors as $info ) {
			$msg .= $info['msg'] . "\n";
			switch ( $info['type'] ) {
				case 'incompatible-core':
					$this->incompatibleCore = true;
					break;
				case 'missing-skins':
					$this->missingSkins[] = $info['missing'];
					break;
				case 'missing-extensions':
					$this->missingExtensions[] = $info['missing'];
					break;
				case 'incompatible-skins':
					$this->incompatibleSkins[] = $info['incompatible'];
					break;
				case 'incompatible-extensions':
					$this->incompatibleExtensions[] = $info['incompatible'];
					break;
				// default: continue
			}
		}

		parent::__construct( $msg );
	}

}