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.statement.tag;
020
021import lucee.transformer.bytecode.BytecodeContext;
022import lucee.transformer.bytecode.BytecodeException;
023import lucee.transformer.bytecode.Position;
024import lucee.transformer.bytecode.Statement;
025import lucee.transformer.bytecode.expression.Expression;
026import lucee.transformer.bytecode.statement.Return;
027
028public final class TagReturn extends TagBaseNoFinal {
029
030        public TagReturn(Position start,Position end) {
031                super(start,end);
032                setHasFlowController(true);
033        }
034
035        /**
036         *
037         * @see lucee.transformer.bytecode.statement.tag.TagBase#_writeOut(org.objectweb.asm.commons.GeneratorAdapter)
038         */
039        public void _writeOut(BytecodeContext bc) throws BytecodeException {
040                Attribute attr = getAttribute("expr");
041                Expression expr=null;
042                if(attr!=null)expr=attr.getValue();
043                new Return(expr,expr.getStart(),expr.getEnd()).writeOut(bc);
044        }
045
046        /**
047         *
048         * @see lucee.transformer.bytecode.statement.StatementBase#setParent(lucee.transformer.bytecode.Statement)
049         */
050        public void setParent(Statement parent) {
051                super.setParent(parent);
052                parent.setHasFlowController(true);
053        }
054
055}