src/share/classes/com/sun/tools/classfile/InnerClasses_attribute.java

Tue, 03 Jun 2008 13:26:47 -0700

author
jjg
date
Tue, 03 Jun 2008 13:26:47 -0700
changeset 46
7708bd6d800d
child 54
eaf608c64fec
permissions
-rw-r--r--

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

     1 /*
     2  * Copyright 2007 Sun Microsystems, Inc.  All Rights Reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.  Sun designates this
     8  * particular file as subject to the "Classpath" exception as provided
     9  * by Sun in the LICENSE file that accompanied this code.
    10  *
    11  * This code is distributed in the hope that it will be useful, but WITHOUT
    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    14  * version 2 for more details (a copy is included in the LICENSE file that
    15  * accompanied this code).
    16  *
    17  * You should have received a copy of the GNU General Public License version
    18  * 2 along with this work; if not, write to the Free Software Foundation,
    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    20  *
    21  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    22  * CA 95054 USA or visit www.sun.com if you need additional information or
    23  * have any questions.
    24  */
    26 package com.sun.tools.classfile;
    28 import java.io.IOException;
    30 import com.sun.tools.classfile.ConstantPool.*;
    32 /**
    33  * See JVMS3, section 4.8.6.
    34  *
    35  *  <p><b>This is NOT part of any API supported by Sun Microsystems.  If
    36  *  you write code that depends on this, you do so at your own risk.
    37  *  This code and its internal interfaces are subject to change or
    38  *  deletion without notice.</b>
    39  */
    40 public class InnerClasses_attribute extends Attribute {
    41     InnerClasses_attribute(ClassReader cr, int name_index, int length) throws IOException {
    42         super(name_index, length);
    43         number_of_classes = cr.readUnsignedShort();
    44         classes = new Info[number_of_classes];
    45         for (int i = 0; i < number_of_classes; i++)
    46             classes[i] = new Info(cr);
    47     }
    49     public InnerClasses_attribute(ConstantPool constant_pool, Info[] classes)
    50             throws ConstantPoolException {
    51         this(constant_pool.getUTF8Index(Attribute.InnerClasses), classes);
    52     }
    54     public InnerClasses_attribute(int name_index, Info[] classes) {
    55         super(name_index, 2 + Info.length() * classes.length);
    56         this.number_of_classes = classes.length;
    57         this.classes = classes;
    58     }
    60     public <R, D> R accept(Visitor<R, D> visitor, D data) {
    61         return visitor.visitInnerClasses(this, data);
    62     }
    64     public final int number_of_classes;
    65     public final Info[] classes;
    67     public static class Info {
    68         Info(ClassReader cr) throws IOException {
    69             inner_class_info_index = cr.readUnsignedShort();
    70             outer_class_info_index = cr.readUnsignedShort();
    71             inner_name_index = cr.readUnsignedShort();
    72             inner_class_access_flags = new AccessFlags(cr.readUnsignedShort());
    73         }
    75         public CONSTANT_Class_info getInnerClassInfo(ConstantPool constant_pool) throws ConstantPoolException {
    76             if (inner_class_info_index == 0)
    77                 return null;
    78             return constant_pool.getClassInfo(inner_class_info_index);
    79         }
    81         public CONSTANT_Class_info getOuterClassInfo(ConstantPool constant_pool) throws ConstantPoolException {
    82             if (outer_class_info_index == 0)
    83                 return null;
    84             return constant_pool.getClassInfo(outer_class_info_index);
    85         }
    87         public String getInnerName(ConstantPool constant_pool) throws ConstantPoolException {
    88             if (inner_name_index == 0)
    89                 return null;
    90             return constant_pool.getUTF8Value(inner_name_index);
    91         }
    93         public static int length() {
    94             return 8;
    95         }
    97         public final int inner_class_info_index;
    98         public final int outer_class_info_index;
    99         public final int inner_name_index;
   100         public final AccessFlags inner_class_access_flags;
   101     }
   102 }

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