1<?php 2/** 3 * Copyright (C) 2018 Kunal Mehta <legoktm@member.fsf.org> 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 * 19 */ 20 21namespace MediaWiki\Interwiki; 22 23/** 24 * An interwiki lookup that has no data, intended 25 * for use in the installer. 26 * 27 * @since 1.31 28 */ 29class NullInterwikiLookup implements InterwikiLookup { 30 31 /** 32 * @inheritDoc 33 */ 34 public function isValidInterwiki( $prefix ) { 35 return false; 36 } 37 38 /** 39 * @inheritDoc 40 */ 41 public function fetch( $prefix ) { 42 return false; 43 } 44 45 /** 46 * @inheritDoc 47 */ 48 public function getAllPrefixes( $local = null ) { 49 return []; 50 } 51 52 /** 53 * @inheritDoc 54 */ 55 public function invalidateCache( $prefix ) { 56 } 57} 58