| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| import org.apache.bcel.Repository; |
| import org.apache.bcel.classfile.ClassParser; |
| import org.apache.bcel.classfile.Field; |
| import org.apache.bcel.classfile.JavaClass; |
| import org.apache.bcel.classfile.Method; |
| import org.apache.bcel.generic.ClassGen; |
| import org.apache.bcel.generic.FieldGen; |
| import org.apache.bcel.generic.MethodGen; |
| |
| /** |
| * Test BCEL if an input file is identical to the outfile generated |
| * with BCEL. Of course there may some small differences, e.g., because |
| * BCEL generates local variable tables by default. |
| * |
| * Try to: |
| * <pre> |
| * % java id <someclass> |
| * % java listclass -code <someclass> > foo |
| * % java listclass -code <someclass>.clazz > bar |
| * % diff foo bar | more |
| * <pre> |
| * |
| * @version $Id$ |
| */ |
| public class id { |
| |
| public static void main(String[] argv) throws Exception { |
| JavaClass clazz; |
| |
| if ((clazz = Repository.lookupClass(argv[0])) == null) { |
| clazz = new ClassParser(argv[0]).parse(); // May throw IOException |
| } |
| |
| ClassGen cg = new ClassGen(clazz); |
| |
| for (Method method : clazz.getMethods()) { |
| MethodGen mg = new MethodGen(method, cg.getClassName(), cg.getConstantPool()); |
| cg.replaceMethod(method, mg.getMethod()); |
| } |
| |
| for (Field field : clazz.getFields()) { |
| FieldGen fg = new FieldGen(field, cg.getConstantPool()); |
| cg.replaceField(field, fg.getField()); |
| } |
| |
| cg.getJavaClass().dump(clazz.getClassName() + ".clazz"); |
| } |
| } |