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.bytecode.visitor;
020
021import lucee.transformer.bytecode.BytecodeContext;
022import lucee.transformer.bytecode.BytecodeException;
023import lucee.transformer.bytecode.util.Types;
024
025import org.objectweb.asm.Type;
026import org.objectweb.asm.commons.GeneratorAdapter;
027import org.objectweb.asm.commons.Method;
028
029public final class ParseBodyVisitor {
030
031        // void outputStart()
032        public final static Method OUTPUT_START = new Method("outputStart",Types.VOID,new Type[]{});
033        
034        // void outputEnd()
035        public final static Method OUTPUT_END = new Method("outputEnd",Types.VOID,new Type[]{});
036        private TryFinallyVisitor tfv;
037
038        public void visitBegin(BytecodeContext bc) {
039                GeneratorAdapter adapter = bc.getAdapter();
040
041                tfv=new TryFinallyVisitor(new OnFinally() {
042                        public void _writeOut(BytecodeContext bc) {
043                                //ExpressionUtil.visitLine(bc, line);
044                                bc.getAdapter().loadArg(0);
045                                bc.getAdapter().invokeVirtual(Types.PAGE_CONTEXT,OUTPUT_END);
046                        }
047                },null);
048
049                //ExpressionUtil.visitLine(bc, line);
050                adapter.loadArg(0);
051                adapter.invokeVirtual(Types.PAGE_CONTEXT,OUTPUT_START);
052                tfv.visitTryBegin(bc);
053
054
055        }
056        public void visitEnd(BytecodeContext bc) throws BytecodeException {
057                
058                tfv.visitTryEnd(bc);
059
060        }
061}