1 /* 2 * Copyright (c) 2007, 2008, Oracle and/or its affiliates. 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.tools.classfile; 27 28 import java.io.IOException; 29 30 /** 31 * See JVMS, section 4.8.14. 32 * 33 * <p><b>This is NOT part of any supported API. 34 * If you write code that depends on this, you do so at your own risk. 35 * This code and its internal interfaces are subject to change or 36 * deletion without notice.</b> 37 */ 38 public class LocalVariableTypeTable_attribute extends Attribute { LocalVariableTypeTable_attribute(ClassReader cr, int name_index, int length)39 LocalVariableTypeTable_attribute(ClassReader cr, int name_index, int length) throws IOException { 40 super(name_index, length); 41 local_variable_table_length = cr.readUnsignedShort(); 42 local_variable_table = new Entry[local_variable_table_length]; 43 for (int i = 0; i < local_variable_table_length; i++) 44 local_variable_table[i] = new Entry(cr); 45 } 46 LocalVariableTypeTable_attribute(ConstantPool constant_pool, Entry[] local_variable_table)47 public LocalVariableTypeTable_attribute(ConstantPool constant_pool, Entry[] local_variable_table) 48 throws ConstantPoolException { 49 this(constant_pool.getUTF8Index(Attribute.LocalVariableTypeTable), local_variable_table); 50 } 51 LocalVariableTypeTable_attribute(int name_index, Entry[] local_variable_table)52 public LocalVariableTypeTable_attribute(int name_index, Entry[] local_variable_table) { 53 super(name_index, 2 + local_variable_table.length * Entry.length()); 54 this.local_variable_table_length = local_variable_table.length; 55 this.local_variable_table = local_variable_table; 56 } 57 accept(Visitor<R, D> visitor, D data)58 public <R, D> R accept(Visitor<R, D> visitor, D data) { 59 return visitor.visitLocalVariableTypeTable(this, data); 60 } 61 62 public final int local_variable_table_length; 63 public final Entry[] local_variable_table; 64 65 public static class Entry { Entry(ClassReader cr)66 Entry(ClassReader cr) throws IOException { 67 start_pc = cr.readUnsignedShort(); 68 length = cr.readUnsignedShort(); 69 name_index = cr.readUnsignedShort(); 70 signature_index = cr.readUnsignedShort(); 71 index = cr.readUnsignedShort(); 72 } 73 length()74 public static int length() { 75 return 10; 76 } 77 78 public final int start_pc; 79 public final int length; 80 public final int name_index; 81 public final int signature_index; 82 public final int index; 83 } 84 } 85