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 4.8.9.
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 Signature_attribute extends Attribute {
Signature_attribute(ClassReader cr, int name_index, int length)39     Signature_attribute(ClassReader cr, int name_index, int length) throws IOException {
40         super(name_index, length);
41         signature_index = cr.readUnsignedShort();
42     }
43 
Signature_attribute(ConstantPool constant_pool, int signature_index)44     public Signature_attribute(ConstantPool constant_pool, int signature_index)
45             throws ConstantPoolException {
46         this(constant_pool.getUTF8Index(Attribute.Signature), signature_index);
47     }
48 
Signature_attribute(int name_index, int signature_index)49     public Signature_attribute(int name_index, int signature_index) {
50         super(name_index, 2);
51         this.signature_index = signature_index;
52     }
53 
getSignature(ConstantPool constant_pool)54     public String getSignature(ConstantPool constant_pool) throws ConstantPoolException {
55         return constant_pool.getUTF8Value(signature_index);
56     }
57 
getParsedSignature()58     public Signature getParsedSignature() {
59         return new Signature(signature_index);
60     }
61 
accept(Visitor<R, D> visitor, D data)62     public <R, D> R accept(Visitor<R, D> visitor, D data) {
63         return visitor.visitSignature(this, data);
64     }
65 
66     public final int signature_index;
67 }
68