001 /*
002 * Copyright 2007-2008 Sun Microsystems, Inc. All Rights Reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation. Sun designates this
008 * particular file as subject to the "Classpath" exception as provided
009 * by Sun in the LICENSE file that accompanied this code.
010 *
011 * This code is distributed in the hope that it will be useful, but WITHOUT
012 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
013 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
014 * version 2 for more details (a copy is included in the LICENSE file that
015 * accompanied this code).
016 *
017 * You should have received a copy of the GNU General Public License version
018 * 2 along with this work; if not, write to the Free Software Foundation,
019 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
020 *
021 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
022 * CA 95054 USA or visit www.sun.com if you need additional information or
023 * have any questions.
024 */
025
026 package com.sun.tools.classfile;
027
028 import java.io.IOException;
029
030 /**
031 * <p><b>This is NOT part of any API supported by Sun Microsystems. If
032 * you write code that depends on this, you do so at your own risk.
033 * This code and its internal interfaces are subject to change or
034 * deletion without notice.</b>
035 */
036 public class CharacterRangeTable_attribute extends Attribute {
037 public static final int CRT_STATEMENT = 0x0001;
038 public static final int CRT_BLOCK = 0x0002;
039 public static final int CRT_ASSIGNMENT = 0x0004;
040 public static final int CRT_FLOW_CONTROLLER = 0x0008;
041 public static final int CRT_FLOW_TARGET = 0x0010;
042 public static final int CRT_INVOKE = 0x0020;
043 public static final int CRT_CREATE = 0x0040;
044 public static final int CRT_BRANCH_TRUE = 0x0080;
045 public static final int CRT_BRANCH_FALSE = 0x0100;
046
047 CharacterRangeTable_attribute(ClassReader cr, int name_index, int length) throws IOException {
048 super(name_index, length);
049 int character_range_table_length = cr.readUnsignedShort();
050 character_range_table = new Entry[character_range_table_length];
051 for (int i = 0; i < character_range_table_length; i++)
052 character_range_table[i] = new Entry(cr);
053 }
054
055 public CharacterRangeTable_attribute(ConstantPool constant_pool, Entry[] character_range_table)
056 throws ConstantPoolException {
057 this(constant_pool.getUTF8Index(Attribute.CharacterRangeTable), character_range_table);
058 }
059
060 public CharacterRangeTable_attribute(int name_index, Entry[] character_range_table) {
061 super(name_index, character_range_table.length * Entry.length());
062 this.character_range_table = character_range_table;
063 }
064
065 public <R, D> R accept(Visitor<R, D> visitor, D data) {
066 return visitor.visitCharacterRangeTable(this, data);
067 }
068
069 public final Entry[] character_range_table;
070
071 public static class Entry {
072 Entry(ClassReader cr) throws IOException {
073 start_pc = cr.readUnsignedShort();
074 end_pc = cr.readUnsignedShort();
075 character_range_start = cr.readInt();
076 character_range_end = cr.readInt();
077 flags = cr.readUnsignedShort();
078 }
079
080 public static int length() {
081 return 14;
082 }
083
084 public final int start_pc;
085 public final int end_pc;
086 public final int character_range_start;
087 public final int character_range_end;
088 public final int flags;
089 };
090 }