InnerClasses_attribute.java revision 2942:08092deced3f
1230557Sjimharris/* 2230557Sjimharris * Copyright (c) 2007, 2008, Oracle and/or its affiliates. All rights reserved. 3230557Sjimharris * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4230557Sjimharris * 5230557Sjimharris * This code is free software; you can redistribute it and/or modify it 6230557Sjimharris * under the terms of the GNU General Public License version 2 only, as 7230557Sjimharris * published by the Free Software Foundation. Oracle designates this 8230557Sjimharris * particular file as subject to the "Classpath" exception as provided 9230557Sjimharris * by Oracle in the LICENSE file that accompanied this code. 10230557Sjimharris * 11230557Sjimharris * This code is distributed in the hope that it will be useful, but WITHOUT 12230557Sjimharris * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13230557Sjimharris * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14230557Sjimharris * version 2 for more details (a copy is included in the LICENSE file that 15230557Sjimharris * accompanied this code). 16230557Sjimharris * 17230557Sjimharris * You should have received a copy of the GNU General Public License version 18230557Sjimharris * 2 along with this work; if not, write to the Free Software Foundation, 19230557Sjimharris * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20230557Sjimharris * 21230557Sjimharris * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22230557Sjimharris * or visit www.oracle.com if you need additional information or have any 23230557Sjimharris * questions. 24230557Sjimharris */ 25230557Sjimharris 26230557Sjimharrispackage com.sun.tools.classfile; 27230557Sjimharris 28230557Sjimharrisimport java.io.IOException; 29230557Sjimharris 30230557Sjimharrisimport com.sun.tools.classfile.ConstantPool.*; 31230557Sjimharris 32230557Sjimharris/** 33230557Sjimharris * See JVMS, section 4.8.6. 34230557Sjimharris * 35230557Sjimharris * <p><b>This is NOT part of any supported API. 36230557Sjimharris * If you write code that depends on this, you do so at your own risk. 37230557Sjimharris * This code and its internal interfaces are subject to change or 38230557Sjimharris * deletion without notice.</b> 39230557Sjimharris */ 40230557Sjimharrispublic class InnerClasses_attribute extends Attribute { 41230557Sjimharris InnerClasses_attribute(ClassReader cr, int name_index, int length) throws IOException { 42230557Sjimharris super(name_index, length); 43230557Sjimharris number_of_classes = cr.readUnsignedShort(); 44230557Sjimharris classes = new Info[number_of_classes]; 45230557Sjimharris for (int i = 0; i < number_of_classes; i++) 46230557Sjimharris classes[i] = new Info(cr); 47230557Sjimharris } 48230557Sjimharris 49230557Sjimharris public InnerClasses_attribute(ConstantPool constant_pool, Info[] classes) 50230557Sjimharris throws ConstantPoolException { 51230557Sjimharris this(constant_pool.getUTF8Index(Attribute.InnerClasses), classes); 52230557Sjimharris } 53230557Sjimharris 54230557Sjimharris public InnerClasses_attribute(int name_index, Info[] classes) { 55230557Sjimharris super(name_index, 2 + Info.length() * classes.length); 56230557Sjimharris this.number_of_classes = classes.length; 57230557Sjimharris this.classes = classes; 58230557Sjimharris } 59230557Sjimharris 60230557Sjimharris public <R, D> R accept(Visitor<R, D> visitor, D data) { 61230557Sjimharris return visitor.visitInnerClasses(this, data); 62230557Sjimharris } 63230557Sjimharris 64230557Sjimharris public final int number_of_classes; 65230557Sjimharris public final Info[] classes; 66230557Sjimharris 67230557Sjimharris public static class Info { 68230557Sjimharris Info(ClassReader cr) throws IOException { 69230557Sjimharris inner_class_info_index = cr.readUnsignedShort(); 70230557Sjimharris outer_class_info_index = cr.readUnsignedShort(); 71230557Sjimharris inner_name_index = cr.readUnsignedShort(); 72230557Sjimharris inner_class_access_flags = new AccessFlags(cr.readUnsignedShort()); 73230557Sjimharris } 74230557Sjimharris 75230557Sjimharris public CONSTANT_Class_info getInnerClassInfo(ConstantPool constant_pool) throws ConstantPoolException { 76230557Sjimharris if (inner_class_info_index == 0) 77230557Sjimharris return null; 78230557Sjimharris return constant_pool.getClassInfo(inner_class_info_index); 79230557Sjimharris } 80230557Sjimharris 81230557Sjimharris public CONSTANT_Class_info getOuterClassInfo(ConstantPool constant_pool) throws ConstantPoolException { 82230557Sjimharris if (outer_class_info_index == 0) 83230557Sjimharris return null; 84230557Sjimharris return constant_pool.getClassInfo(outer_class_info_index); 85230557Sjimharris } 86230557Sjimharris 87230557Sjimharris public String getInnerName(ConstantPool constant_pool) throws ConstantPoolException { 88230557Sjimharris if (inner_name_index == 0) 89230557Sjimharris return null; 90230557Sjimharris return constant_pool.getUTF8Value(inner_name_index); 91230557Sjimharris } 92230557Sjimharris 93230557Sjimharris public static int length() { 94230557Sjimharris return 8; 95230557Sjimharris } 96230557Sjimharris 97230557Sjimharris public final int inner_class_info_index; 98230557Sjimharris public final int outer_class_info_index; 99230557Sjimharris public final int inner_name_index; 100230557Sjimharris public final AccessFlags inner_class_access_flags; 101230557Sjimharris } 102230557Sjimharris} 103230557Sjimharris