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.commons.lang.StringUtil;
022import lucee.transformer.bytecode.cast.CastString;
023import lucee.transformer.bytecode.literal.LitString;
024import lucee.transformer.bytecode.statement.tag.Tag;
025import lucee.transformer.bytecode.statement.tag.TagWhile;
026import lucee.transformer.bytecode.util.ASMUtil;
027import lucee.transformer.cfml.evaluator.EvaluatorException;
028import lucee.transformer.cfml.evaluator.EvaluatorSupport;
029import lucee.transformer.library.function.FunctionLib;
030import lucee.transformer.library.tag.TagLibTag;
031
032
033
034public final class While extends EvaluatorSupport {
035        @Override
036        public void evaluate(Tag tag,TagLibTag tagLibTag,FunctionLib[] flibs) throws EvaluatorException {
037                TagWhile whil=(TagWhile) tag;
038                
039                // label
040                if(ASMUtil.isLiteralAttribute(tag, "label", ASMUtil.TYPE_STRING, false, true)) {
041                        LitString ls=(LitString) CastString.toExprString(tag.getAttribute("label").getValue());
042                        String l = ls.getString();
043                        if(!StringUtil.isEmpty(l,true)) {
044                                whil.setLabel(l.trim());
045                                tag.removeAttribute("label");
046                        }
047                }
048        }
049}