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 **/
019package lucee.transformer.cfml.evaluator.impl;
020
021import lucee.transformer.bytecode.statement.tag.Tag;
022import lucee.transformer.bytecode.util.ASMUtil;
023import lucee.transformer.cfml.evaluator.EvaluatorException;
024import lucee.transformer.cfml.evaluator.EvaluatorSupport;
025import lucee.transformer.library.tag.TagLibTag;
026
027
028
029/**
030 * Prueft den Kontext des Tag case.
031 * Das Tag <code>httpparam</code> darf nur innerhalb des Tag <code>http</code> liegen.
032 */
033public final class HttpParam extends EvaluatorSupport {
034
035
036        /**
037         * @see lucee.transformer.cfml.evaluator.EvaluatorSupport#evaluate(org.w3c.dom.Element, lucee.transformer.library.tag.TagLibTag)
038         */
039        public void evaluate(Tag tag,TagLibTag libTag) throws EvaluatorException { 
040                String ns=libTag.getTagLib().getNameSpaceAndSeparator();
041                        String httpName=ns+"http";
042                
043                // check if tag is direct inside if
044                if(!ASMUtil.hasAncestorTag(tag,httpName))
045                        throw new EvaluatorException("Wrong Context, tag "+libTag.getFullName()+" must be inside a "+httpName+" tag");  
046        }
047
048}