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;
022
023import org.objectweb.asm.Label;
024import org.objectweb.asm.Opcodes;
025import org.objectweb.asm.commons.GeneratorAdapter;
026
027public final class NotVisitor {
028
029        public static void visitNot(BytecodeContext bc) {
030                GeneratorAdapter adapter = bc.getAdapter();
031
032                Label l1=new Label();
033                adapter.visitJumpInsn(Opcodes.IFEQ, l1);
034                adapter.visitInsn(Opcodes.ICONST_0);
035                Label l2 = new Label();
036                adapter.visitJumpInsn(Opcodes.GOTO, l2);
037                adapter.visitLabel(l1);
038                adapter.visitInsn(Opcodes.ICONST_1);
039                adapter.visitLabel(l2);
040        }
041
042}