169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal/* 269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Javassist, a Java-bytecode translator toolkit. 369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Copyright (C) 1999-2007 Shigeru Chiba. All Rights Reserved. 469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * The contents of this file are subject to the Mozilla Public License Version 669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 1.1 (the "License"); you may not use this file except in compliance with 769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * the License. Alternatively, the contents of this file may be used under 869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * the terms of the GNU Lesser General Public License Version 2.1 or later. 969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 1069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Software distributed under the License is distributed on an "AS IS" basis, 1169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 1269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * for the specific language governing rights and limitations under the 1369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * License. 1469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */ 1569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 1669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalpackage javassist.tools; 1769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 1869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.io.*; 1969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport javassist.bytecode.ClassFile; 2069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport javassist.bytecode.ClassFilePrinter; 2169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 2269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal/** 2369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Dump is a tool for viewing the class definition in the given 2469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * class file. Unlike the JDK javap tool, Dump works even if 2569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * the class file is broken. 2669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 2769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * <p>For example, 2869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * <ul><pre>% java javassist.tools.Dump foo.class</pre></ul> 2969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 3069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * <p>prints the contents of the constant pool and the list of methods 3169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * and fields. 3269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */ 3369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalpublic class Dump { 3469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal private Dump() {} 3569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 3669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal /** 3769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Main method. 3869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 3969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * @param args <code>args[0]</code> is the class file name. 4069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */ 4169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public static void main(String[] args) throws Exception { 4269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal if (args.length != 1) { 4369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal System.err.println("Usage: java Dump <class file name>"); 4469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal return; 4569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 4669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 4769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal DataInputStream in = new DataInputStream( 4869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal new FileInputStream(args[0])); 4969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal ClassFile w = new ClassFile(in); 5069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal PrintWriter out = new PrintWriter(System.out, true); 5169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal out.println("*** constant pool ***"); 5269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal w.getConstPool().print(out); 5369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal out.println(); 5469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal out.println("*** members ***"); 5569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal ClassFilePrinter.print(w, out); 5669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 5769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal} 58