Sun, 16 Dec 2012 11:09:36 +0100
8005098: Provide isSynthesized() information on Attribute.Compound
Reviewed-by: jjg
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 */
26 package com.sun.tools.classfile;
28 import java.io.IOException;
29 import java.util.Arrays;
30 import java.util.HashMap;
31 import java.util.Iterator;
32 import java.util.Map;
34 /*
35 * <p><b>This is NOT part of any supported API.
36 * If you write code that depends on this, you do so at your own risk.
37 * This code and its internal interfaces are subject to change or
38 * deletion without notice.</b>
39 */
40 public class Attributes implements Iterable<Attribute> {
41 Attributes(ClassReader cr) throws IOException {
42 map = new HashMap<String,Attribute>();
43 int attrs_count = cr.readUnsignedShort();
44 attrs = new Attribute[attrs_count];
45 for (int i = 0; i < attrs_count; i++) {
46 Attribute attr = Attribute.read(cr);
47 attrs[i] = attr;
48 try {
49 map.put(attr.getName(cr.getConstantPool()), attr);
50 } catch (ConstantPoolException e) {
51 // don't enter invalid names in map
52 }
53 }
54 }
56 public Attributes(ConstantPool constant_pool, Attribute[] attrs) {
57 this.attrs = attrs;
58 map = new HashMap<String,Attribute>();
59 for (int i = 0; i < attrs.length; i++) {
60 Attribute attr = attrs[i];
61 try {
62 map.put(attr.getName(constant_pool), attr);
63 } catch (ConstantPoolException e) {
64 // don't enter invalid names in map
65 }
66 }
67 }
69 public Iterator<Attribute> iterator() {
70 return Arrays.asList(attrs).iterator();
71 }
73 public Attribute get(int index) {
74 return attrs[index];
75 }
77 public Attribute get(String name) {
78 return map.get(name);
79 }
81 public int getIndex(ConstantPool constant_pool, String name) {
82 for (int i = 0; i < attrs.length; i++) {
83 Attribute attr = attrs[i];
84 try {
85 if (attr != null && attr.getName(constant_pool).equals(name))
86 return i;
87 } catch (ConstantPoolException e) {
88 // ignore invalid entries
89 }
90 }
91 return -1;
92 }
94 public int size() {
95 return attrs.length;
96 }
98 public int byteLength() {
99 int length = 2;
100 for (Attribute a: attrs)
101 length += a.byteLength();
102 return length;
103 }
105 public final Attribute[] attrs;
106 public final Map<String, Attribute> map;
107 }