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 * <p><b>This is NOT part of any supported API.
32 * If you write code that depends on this, you do so at your own risk.
33 * This code and its internal interfaces are subject to change or
34 * deletion without notice.</b>
35 */
36 public class CharacterRangeTable_attribute extends Attribute {
37 public static final int CRT_STATEMENT = 0x0001;
38 public static final int CRT_BLOCK = 0x0002;
39 public static final int CRT_ASSIGNMENT = 0x0004;
40 public static final int CRT_FLOW_CONTROLLER = 0x0008;
41 public static final int CRT_FLOW_TARGET = 0x0010;
42 public static final int CRT_INVOKE = 0x0020;
43 public static final int CRT_CREATE = 0x0040;
44 public static final int CRT_BRANCH_TRUE = 0x0080;
45 public static final int CRT_BRANCH_FALSE = 0x0100;
46
47 CharacterRangeTable_attribute(ClassReader cr, int name_index, int length) throws IOException {
48 super(name_index, length);
49 int character_range_table_length = cr.readUnsignedShort();
50 character_range_table = new Entry[character_range_table_length];
51 for (int i = 0; i < character_range_table_length; i++)
52 character_range_table[i] = new Entry(cr);
53 }
54
55 public CharacterRangeTable_attribute(ConstantPool constant_pool, Entry[] character_range_table)
56 throws ConstantPoolException {
57 this(constant_pool.getUTF8Index(Attribute.CharacterRangeTable), character_range_table);
58 }
59
60 public CharacterRangeTable_attribute(int name_index, Entry[] character_range_table) {
61 super(name_index, 2 + character_range_table.length * Entry.length());
62 this.character_range_table = character_range_table;
63 }
64
65 public <R, D> R accept(Visitor<R, D> visitor, D data) {
66 return visitor.visitCharacterRangeTable(this, data);
67 }
68
69 public final Entry[] character_range_table;
70
71 public static class Entry {
72 Entry(ClassReader cr) throws IOException {
73 start_pc = cr.readUnsignedShort();
74 end_pc = cr.readUnsignedShort();
75 character_range_start = cr.readInt();
76 character_range_end = cr.readInt();
77 flags = cr.readUnsignedShort();
78 }
79
80 public static int length() {
81 return 14;
82 }
83
84 public final int start_pc;
85 public final int end_pc;
86 public final int character_range_start;
87 public final int character_range_end;
88 public final int flags;
89 }
90 }