001/**
002 *
003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
004 *
005 * This library is free software; you can redistribute it and/or
006 * modify it under the terms of the GNU Lesser General Public
007 * License as published by the Free Software Foundation; either 
008 * version 2.1 of the License, or (at your option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013 * Lesser General Public License for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public 
016 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
017 * 
018 **/
019/**
020 * Implements the CFML Function isnotmap
021 */
022package lucee.runtime.functions.other;
023
024import lucee.runtime.PageContext;
025import lucee.runtime.exp.PageException;
026import lucee.runtime.ext.function.Function;
027
028public final class IsNull implements Function {
029        public static boolean call(PageContext pc , Object object) {
030                return object==null;
031        }
032        // called by modifed call from translation time evaluator
033        public static boolean call(PageContext pc , String str) {
034                
035                try {
036                        return pc.evaluate(str)==null;
037                } 
038                catch (PageException e) {
039                        return true;
040                }
041        }
042}