Sat, 29 Dec 2012 17:33:17 -0800
8004727: Add compiler support for parameter reflection
Reviewed-by: jjg
Contributed-by: eric.mccorkle@oracle.com
1 /*
2 * Copyright (c) 2012, 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 */
26 package com.sun.tools.classfile;
28 import java.io.IOException;
30 /**
31 * See JVMS, section 4.8.13.
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 MethodParameters_attribute extends Attribute {
40 public final int method_parameter_table_length;
41 public final Entry[] method_parameter_table;
43 MethodParameters_attribute(ClassReader cr,
44 int name_index,
45 int length)
46 throws IOException {
47 super(name_index, length);
49 method_parameter_table_length = cr.readUnsignedByte();
50 method_parameter_table = new Entry[method_parameter_table_length];
51 for (int i = 0; i < method_parameter_table_length; i++)
52 method_parameter_table[i] = new Entry(cr);
53 }
55 public MethodParameters_attribute(ConstantPool constant_pool,
56 Entry[] method_parameter_table)
57 throws ConstantPoolException {
58 this(constant_pool.getUTF8Index(Attribute.MethodParameters),
59 method_parameter_table);
60 }
62 public MethodParameters_attribute(int name_index,
63 Entry[] method_parameter_table) {
64 super(name_index, 1 + method_parameter_table.length * Entry.length());
65 this.method_parameter_table_length = method_parameter_table.length;
66 this.method_parameter_table = method_parameter_table;
67 }
69 public <R, D> R accept(Visitor<R, D> visitor, D data) {
70 return visitor.visitMethodParameters(this, data);
71 }
73 public static class Entry {
74 Entry(ClassReader cr) throws IOException {
75 name_index = cr.readUnsignedShort();
76 flags = cr.readInt();
77 }
79 public static int length() {
80 return 6;
81 }
83 public final int name_index;
84 public final int flags;
85 }
87 }