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; 022import lucee.transformer.bytecode.statement.TryCatchFinally; 023import lucee.transformer.bytecode.statement.tag.Tag; 024import lucee.transformer.cfml.evaluator.EvaluatorException; 025import lucee.transformer.cfml.evaluator.EvaluatorSupport; 026import lucee.transformer.library.tag.TagLib; 027import lucee.transformer.library.tag.TagLibTag; 028 029 030 031/** 032 * Prueft den Kontext des Tag break. 033 * Das Tag <code>break</code> darf nur innerhalb des Tag <code>loop, while, foreach</code> liegen. 034 */ 035public final class Retry extends EvaluatorSupport { 036 037 038 /** 039 * @see lucee.transformer.cfml.evaluator.EvaluatorSupport#evaluate(org.w3c.dom.Element, lucee.transformer.library.tag.TagLibTag) 040 */ 041 public void evaluate(Tag tag,TagLibTag libTag) throws EvaluatorException { 042 String ns=libTag.getTagLib().getNameSpaceAndSeparator(); 043 String name=ns+"catch"; 044 045 if(getAncestorCatch(libTag.getTagLib(),tag)==null) 046 throw new EvaluatorException("Wrong Context, tag "+libTag.getFullName()+" must be inside a "+name+" tag"); 047 } 048 049 public static Statement getAncestorCatch(TagLib tagLib, Statement stat) { 050 String name=tagLib.getNameSpaceAndSeparator()+"catch"; 051 Tag tag; 052 Statement parent=stat; 053 while(true) { 054 parent=parent.getParent(); 055 if(parent==null)return null; 056 if(parent instanceof Tag) { 057 tag=(Tag) parent; 058 if(tag.getFullname().equalsIgnoreCase(name)) 059 return tag; 060 } 061 else if(parent instanceof TryCatchFinally) 062 return parent; 063 } 064 } 065 066}