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 java.util.Iterator; 022import java.util.List; 023 024import lucee.transformer.bytecode.Body; 025import lucee.transformer.bytecode.Statement; 026import lucee.transformer.bytecode.cast.CastString; 027import lucee.transformer.bytecode.expression.ExprString; 028import lucee.transformer.bytecode.literal.LitString; 029import lucee.transformer.bytecode.statement.PrintOut; 030import lucee.transformer.bytecode.statement.tag.Attribute; 031import lucee.transformer.bytecode.statement.tag.Tag; 032import lucee.transformer.bytecode.statement.tag.TagFunction; 033import lucee.transformer.bytecode.statement.tag.TagImport; 034import lucee.transformer.cfml.evaluator.EvaluatorException; 035import lucee.transformer.library.tag.TagLibTag; 036 037public class Interface extends Component { 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 super.evaluate(tag,libTag); 043 Body body = tag.getBody(); 044 List statments = body.getStatements(); 045 Statement stat; 046 Iterator it = statments.iterator(); 047 Tag t; 048 while(it.hasNext()) { 049 stat=(Statement) it.next(); 050 051 if(stat instanceof PrintOut) { 052 //body.remove(stat); 053 } 054 else if(stat instanceof Tag) { 055 t=(Tag) stat; 056 if(stat instanceof TagImport) { 057 // ignore 058 } 059 else if(stat instanceof TagFunction) { 060 061 Function.throwIfNotEmpty(t); 062 Attribute attr = t.getAttribute("access"); 063 064 if(attr!=null) { 065 ExprString expr = CastString.toExprString(attr.getValue()); 066 067 if(!(expr instanceof LitString)) 068 throw new EvaluatorException( 069 "the attribute access of the Tag function inside an interface must contain a constant value"); 070 String access = ((LitString)expr).getString().trim(); 071 if(!"public".equalsIgnoreCase(access)) 072 throw new EvaluatorException( 073 "the attribute access of the tag function inside an interface definition can only have the value [public] not ["+access+"]"); 074 } 075 else t.addAttribute(new Attribute(false,"access",LitString.toExprString("public"),"string")); 076 077 } 078 else throw new EvaluatorException("tag "+libTag.getFullName()+" can only contain function definitions."); 079 } 080 } 081 082 083 } 084 085}