Tue, 03 Jun 2008 13:26:47 -0700
4075303: Use javap to enquire aboput a specific inner class
4348375: Javap is not internationalized
4459541: "javap -l" shows line numbers as signed short; they should be unsigned
4501660: change diagnostic of -help as 'print this help message and exit'
4776241: unused source file in javap...
4870651: javap should recognize generics, varargs, enum
4876942: javap invoked without args does not print help screen
4880663: javap could output whitespace between class name and opening brace
4975569: javap doesn't print new flag bits
6271787: javap dumps LocalVariableTypeTable attribute in hex, needs to print a table
6305779: javap: support annotations
6439940: Clean up javap implementation
6469569: wrong check of searchpath in JavapEnvironment
6474890: javap does not open .zip files in -classpath
6587786: Javap throws error : "ERROR:Could not find <classname>" for JRE classes
6622215: javap ignores certain relevant access flags
6622216: javap names some attributes incorrectly
6622232: javap gets whitespace confused
6622260: javap prints negative bytes incorrectly in hex
Reviewed-by: ksrini
jjg@46 | 1 | /* |
jjg@46 | 2 | * Copyright 2007 Sun Microsystems, Inc. All Rights Reserved. |
jjg@46 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
jjg@46 | 4 | * |
jjg@46 | 5 | * This code is free software; you can redistribute it and/or modify it |
jjg@46 | 6 | * under the terms of the GNU General Public License version 2 only, as |
jjg@46 | 7 | * published by the Free Software Foundation. Sun designates this |
jjg@46 | 8 | * particular file as subject to the "Classpath" exception as provided |
jjg@46 | 9 | * by Sun in the LICENSE file that accompanied this code. |
jjg@46 | 10 | * |
jjg@46 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
jjg@46 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
jjg@46 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
jjg@46 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
jjg@46 | 15 | * accompanied this code). |
jjg@46 | 16 | * |
jjg@46 | 17 | * You should have received a copy of the GNU General Public License version |
jjg@46 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
jjg@46 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
jjg@46 | 20 | * |
jjg@46 | 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
jjg@46 | 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
jjg@46 | 23 | * have any questions. |
jjg@46 | 24 | */ |
jjg@46 | 25 | |
jjg@46 | 26 | package com.sun.tools.javap; |
jjg@46 | 27 | |
jjg@46 | 28 | import java.io.PrintWriter; |
jjg@46 | 29 | |
jjg@46 | 30 | import com.sun.tools.classfile.AttributeException; |
jjg@46 | 31 | import com.sun.tools.classfile.ConstantPoolException; |
jjg@46 | 32 | import com.sun.tools.classfile.DescriptorException; |
jjg@46 | 33 | |
jjg@46 | 34 | /* |
jjg@46 | 35 | * A writer similar to a PrintWriter but which does not hide exceptions. |
jjg@46 | 36 | * The standard print calls are line-buffered; report calls write messages directly. |
jjg@46 | 37 | * |
jjg@46 | 38 | * <p><b>This is NOT part of any API supported by Sun Microsystems. If |
jjg@46 | 39 | * you write code that depends on this, you do so at your own risk. |
jjg@46 | 40 | * This code and its internal interfaces are subject to change or |
jjg@46 | 41 | * deletion without notice.</b> |
jjg@46 | 42 | */ |
jjg@46 | 43 | public class BasicWriter { |
jjg@46 | 44 | protected BasicWriter(Context context) { |
jjg@46 | 45 | lineWriter = LineWriter.instance(context); |
jjg@46 | 46 | out = context.get(PrintWriter.class); |
jjg@46 | 47 | } |
jjg@46 | 48 | |
jjg@46 | 49 | protected void print(String s) { |
jjg@46 | 50 | lineWriter.print(s); |
jjg@46 | 51 | } |
jjg@46 | 52 | |
jjg@46 | 53 | protected void print(Object o) { |
jjg@46 | 54 | lineWriter.print(o == null ? null : o.toString()); |
jjg@46 | 55 | } |
jjg@46 | 56 | |
jjg@46 | 57 | protected void println() { |
jjg@46 | 58 | lineWriter.println(); |
jjg@46 | 59 | } |
jjg@46 | 60 | |
jjg@46 | 61 | protected void println(String s) { |
jjg@46 | 62 | lineWriter.print(s); |
jjg@46 | 63 | lineWriter.println(); |
jjg@46 | 64 | } |
jjg@46 | 65 | |
jjg@46 | 66 | protected void println(Object o) { |
jjg@46 | 67 | lineWriter.print(o == null ? null : o.toString()); |
jjg@46 | 68 | lineWriter.println(); |
jjg@46 | 69 | } |
jjg@46 | 70 | |
jjg@46 | 71 | protected String report(AttributeException e) { |
jjg@46 | 72 | out.println("Error: " + e.getMessage()); // i18n? |
jjg@46 | 73 | return "???"; |
jjg@46 | 74 | } |
jjg@46 | 75 | |
jjg@46 | 76 | protected String report(ConstantPoolException e) { |
jjg@46 | 77 | out.println("Error: " + e.getMessage()); // i18n? |
jjg@46 | 78 | return "???"; |
jjg@46 | 79 | } |
jjg@46 | 80 | |
jjg@46 | 81 | protected String report(DescriptorException e) { |
jjg@46 | 82 | out.println("Error: " + e.getMessage()); // i18n? |
jjg@46 | 83 | return "???"; |
jjg@46 | 84 | } |
jjg@46 | 85 | |
jjg@46 | 86 | protected String report(String msg) { |
jjg@46 | 87 | out.println("Error: " + msg); // i18n? |
jjg@46 | 88 | return "???"; |
jjg@46 | 89 | } |
jjg@46 | 90 | |
jjg@46 | 91 | private LineWriter lineWriter; |
jjg@46 | 92 | private PrintWriter out; |
jjg@46 | 93 | |
jjg@46 | 94 | private static class LineWriter { |
jjg@46 | 95 | static LineWriter instance(Context context) { |
jjg@46 | 96 | LineWriter instance = context.get(LineWriter.class); |
jjg@46 | 97 | if (instance == null) |
jjg@46 | 98 | instance = new LineWriter(context); |
jjg@46 | 99 | return instance; |
jjg@46 | 100 | } |
jjg@46 | 101 | |
jjg@46 | 102 | protected LineWriter(Context context) { |
jjg@46 | 103 | context.put(LineWriter.class, this); |
jjg@46 | 104 | out = context.get(PrintWriter.class); |
jjg@46 | 105 | buffer = new StringBuilder(); |
jjg@46 | 106 | } |
jjg@46 | 107 | |
jjg@46 | 108 | protected void print(String s) { |
jjg@46 | 109 | if (s == null) |
jjg@46 | 110 | s = "null"; |
jjg@46 | 111 | for (int i = 0; i < s.length(); i++) { |
jjg@46 | 112 | char c = s.charAt(i); |
jjg@46 | 113 | if (c == '\n') { |
jjg@46 | 114 | println(); |
jjg@46 | 115 | } else { |
jjg@46 | 116 | buffer.append(c); |
jjg@46 | 117 | } |
jjg@46 | 118 | } |
jjg@46 | 119 | |
jjg@46 | 120 | } |
jjg@46 | 121 | |
jjg@46 | 122 | protected void println() { |
jjg@46 | 123 | out.println(buffer); |
jjg@46 | 124 | buffer.setLength(0); |
jjg@46 | 125 | } |
jjg@46 | 126 | |
jjg@46 | 127 | private PrintWriter out; |
jjg@46 | 128 | private StringBuilder buffer; |
jjg@46 | 129 | } |
jjg@46 | 130 | } |
jjg@46 | 131 |